1 /**
2 ******************************************************************************
3 * @file stm32f2xx_ll_spi.h
4 * @author MCD Application Team
5 * @brief Header file of SPI LL module.
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2016 STMicroelectronics.
10 * All rights reserved.
11 *
12 * This software is licensed under terms that can be found in the LICENSE file
13 * in the root directory of this software component.
14 * If no LICENSE file comes with this software, it is provided AS-IS.
15 *
16 ******************************************************************************
17 */
18
19 /* Define to prevent recursive inclusion -------------------------------------*/
20 #ifndef STM32F2xx_LL_SPI_H
21 #define STM32F2xx_LL_SPI_H
22
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26
27 /* Includes ------------------------------------------------------------------*/
28 #include "stm32f2xx.h"
29
30 /** @addtogroup STM32F2xx_LL_Driver
31 * @{
32 */
33
34 #if defined (SPI1) || defined (SPI2) || defined (SPI3)
35
36 /** @defgroup SPI_LL SPI
37 * @{
38 */
39
40 /* Private types -------------------------------------------------------------*/
41 /* Private variables ---------------------------------------------------------*/
42 /* Private macros ------------------------------------------------------------*/
43
44 /* Exported types ------------------------------------------------------------*/
45 #if defined(USE_FULL_LL_DRIVER)
46 /** @defgroup SPI_LL_ES_INIT SPI Exported Init structure
47 * @{
48 */
49
50 /**
51 * @brief SPI Init structures definition
52 */
53 typedef struct
54 {
55 uint32_t TransferDirection; /*!< Specifies the SPI unidirectional or bidirectional data mode.
56 This parameter can be a value of @ref SPI_LL_EC_TRANSFER_MODE.
57
58 This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferDirection().*/
59
60 uint32_t Mode; /*!< Specifies the SPI mode (Master/Slave).
61 This parameter can be a value of @ref SPI_LL_EC_MODE.
62
63 This feature can be modified afterwards using unitary function @ref LL_SPI_SetMode().*/
64
65 uint32_t DataWidth; /*!< Specifies the SPI data width.
66 This parameter can be a value of @ref SPI_LL_EC_DATAWIDTH.
67
68 This feature can be modified afterwards using unitary function @ref LL_SPI_SetDataWidth().*/
69
70 uint32_t ClockPolarity; /*!< Specifies the serial clock steady state.
71 This parameter can be a value of @ref SPI_LL_EC_POLARITY.
72
73 This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPolarity().*/
74
75 uint32_t ClockPhase; /*!< Specifies the clock active edge for the bit capture.
76 This parameter can be a value of @ref SPI_LL_EC_PHASE.
77
78 This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPhase().*/
79
80 uint32_t NSS; /*!< Specifies whether the NSS signal is managed by hardware (NSS pin) or by software using the SSI bit.
81 This parameter can be a value of @ref SPI_LL_EC_NSS_MODE.
82
83 This feature can be modified afterwards using unitary function @ref LL_SPI_SetNSSMode().*/
84
85 uint32_t BaudRate; /*!< Specifies the BaudRate prescaler value which will be used to configure the transmit and receive SCK clock.
86 This parameter can be a value of @ref SPI_LL_EC_BAUDRATEPRESCALER.
87 @note The communication clock is derived from the master clock. The slave clock does not need to be set.
88
89 This feature can be modified afterwards using unitary function @ref LL_SPI_SetBaudRatePrescaler().*/
90
91 uint32_t BitOrder; /*!< Specifies whether data transfers start from MSB or LSB bit.
92 This parameter can be a value of @ref SPI_LL_EC_BIT_ORDER.
93
94 This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferBitOrder().*/
95
96 uint32_t CRCCalculation; /*!< Specifies if the CRC calculation is enabled or not.
97 This parameter can be a value of @ref SPI_LL_EC_CRC_CALCULATION.
98
99 This feature can be modified afterwards using unitary functions @ref LL_SPI_EnableCRC() and @ref LL_SPI_DisableCRC().*/
100
101 uint32_t CRCPoly; /*!< Specifies the polynomial used for the CRC calculation.
102 This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF.
103
104 This feature can be modified afterwards using unitary function @ref LL_SPI_SetCRCPolynomial().*/
105
106 } LL_SPI_InitTypeDef;
107
108 /**
109 * @}
110 */
111 #endif /* USE_FULL_LL_DRIVER */
112
113 /* Exported constants --------------------------------------------------------*/
114 /** @defgroup SPI_LL_Exported_Constants SPI Exported Constants
115 * @{
116 */
117
118 /** @defgroup SPI_LL_EC_GET_FLAG Get Flags Defines
119 * @brief Flags defines which can be used with LL_SPI_ReadReg function
120 * @{
121 */
122 #define LL_SPI_SR_RXNE SPI_SR_RXNE /*!< Rx buffer not empty flag */
123 #define LL_SPI_SR_TXE SPI_SR_TXE /*!< Tx buffer empty flag */
124 #define LL_SPI_SR_BSY SPI_SR_BSY /*!< Busy flag */
125 #define LL_SPI_SR_CRCERR SPI_SR_CRCERR /*!< CRC error flag */
126 #define LL_SPI_SR_MODF SPI_SR_MODF /*!< Mode fault flag */
127 #define LL_SPI_SR_OVR SPI_SR_OVR /*!< Overrun flag */
128 #define LL_SPI_SR_FRE SPI_SR_FRE /*!< TI mode frame format error flag */
129 /**
130 * @}
131 */
132
133 /** @defgroup SPI_LL_EC_IT IT Defines
134 * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions
135 * @{
136 */
137 #define LL_SPI_CR2_RXNEIE SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */
138 #define LL_SPI_CR2_TXEIE SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */
139 #define LL_SPI_CR2_ERRIE SPI_CR2_ERRIE /*!< Error interrupt enable */
140 /**
141 * @}
142 */
143
144 /** @defgroup SPI_LL_EC_MODE Operation Mode
145 * @{
146 */
147 #define LL_SPI_MODE_MASTER (SPI_CR1_MSTR | SPI_CR1_SSI) /*!< Master configuration */
148 #define LL_SPI_MODE_SLAVE 0x00000000U /*!< Slave configuration */
149 /**
150 * @}
151 */
152
153 /** @defgroup SPI_LL_EC_PROTOCOL Serial Protocol
154 * @{
155 */
156 #define LL_SPI_PROTOCOL_MOTOROLA 0x00000000U /*!< Motorola mode. Used as default value */
157 #define LL_SPI_PROTOCOL_TI (SPI_CR2_FRF) /*!< TI mode */
158 /**
159 * @}
160 */
161
162 /** @defgroup SPI_LL_EC_PHASE Clock Phase
163 * @{
164 */
165 #define LL_SPI_PHASE_1EDGE 0x00000000U /*!< First clock transition is the first data capture edge */
166 #define LL_SPI_PHASE_2EDGE (SPI_CR1_CPHA) /*!< Second clock transition is the first data capture edge */
167 /**
168 * @}
169 */
170
171 /** @defgroup SPI_LL_EC_POLARITY Clock Polarity
172 * @{
173 */
174 #define LL_SPI_POLARITY_LOW 0x00000000U /*!< Clock to 0 when idle */
175 #define LL_SPI_POLARITY_HIGH (SPI_CR1_CPOL) /*!< Clock to 1 when idle */
176 /**
177 * @}
178 */
179
180 /** @defgroup SPI_LL_EC_BAUDRATEPRESCALER Baud Rate Prescaler
181 * @{
182 */
183 #define LL_SPI_BAUDRATEPRESCALER_DIV2 0x00000000U /*!< BaudRate control equal to fPCLK/2 */
184 #define LL_SPI_BAUDRATEPRESCALER_DIV4 (SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/4 */
185 #define LL_SPI_BAUDRATEPRESCALER_DIV8 (SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/8 */
186 #define LL_SPI_BAUDRATEPRESCALER_DIV16 (SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/16 */
187 #define LL_SPI_BAUDRATEPRESCALER_DIV32 (SPI_CR1_BR_2) /*!< BaudRate control equal to fPCLK/32 */
188 #define LL_SPI_BAUDRATEPRESCALER_DIV64 (SPI_CR1_BR_2 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/64 */
189 #define LL_SPI_BAUDRATEPRESCALER_DIV128 (SPI_CR1_BR_2 | SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/128 */
190 #define LL_SPI_BAUDRATEPRESCALER_DIV256 (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/256 */
191 /**
192 * @}
193 */
194
195 /** @defgroup SPI_LL_EC_BIT_ORDER Transmission Bit Order
196 * @{
197 */
198 #define LL_SPI_LSB_FIRST (SPI_CR1_LSBFIRST) /*!< Data is transmitted/received with the LSB first */
199 #define LL_SPI_MSB_FIRST 0x00000000U /*!< Data is transmitted/received with the MSB first */
200 /**
201 * @}
202 */
203
204 /** @defgroup SPI_LL_EC_TRANSFER_MODE Transfer Mode
205 * @{
206 */
207 #define LL_SPI_FULL_DUPLEX 0x00000000U /*!< Full-Duplex mode. Rx and Tx transfer on 2 lines */
208 #define LL_SPI_SIMPLEX_RX (SPI_CR1_RXONLY) /*!< Simplex Rx mode. Rx transfer only on 1 line */
209 #define LL_SPI_HALF_DUPLEX_RX (SPI_CR1_BIDIMODE) /*!< Half-Duplex Rx mode. Rx transfer on 1 line */
210 #define LL_SPI_HALF_DUPLEX_TX (SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE) /*!< Half-Duplex Tx mode. Tx transfer on 1 line */
211 /**
212 * @}
213 */
214
215 /** @defgroup SPI_LL_EC_NSS_MODE Slave Select Pin Mode
216 * @{
217 */
218 #define LL_SPI_NSS_SOFT (SPI_CR1_SSM) /*!< NSS managed internally. NSS pin not used and free */
219 #define LL_SPI_NSS_HARD_INPUT 0x00000000U /*!< NSS pin used in Input. Only used in Master mode */
220 #define LL_SPI_NSS_HARD_OUTPUT (((uint32_t)SPI_CR2_SSOE << 16U)) /*!< NSS pin used in Output. Only used in Slave mode as chip select */
221 /**
222 * @}
223 */
224
225 /** @defgroup SPI_LL_EC_DATAWIDTH Datawidth
226 * @{
227 */
228 #define LL_SPI_DATAWIDTH_8BIT 0x00000000U /*!< Data length for SPI transfer: 8 bits */
229 #define LL_SPI_DATAWIDTH_16BIT (SPI_CR1_DFF) /*!< Data length for SPI transfer: 16 bits */
230 /**
231 * @}
232 */
233 #if defined(USE_FULL_LL_DRIVER)
234
235 /** @defgroup SPI_LL_EC_CRC_CALCULATION CRC Calculation
236 * @{
237 */
238 #define LL_SPI_CRCCALCULATION_DISABLE 0x00000000U /*!< CRC calculation disabled */
239 #define LL_SPI_CRCCALCULATION_ENABLE (SPI_CR1_CRCEN) /*!< CRC calculation enabled */
240 /**
241 * @}
242 */
243 #endif /* USE_FULL_LL_DRIVER */
244
245 /**
246 * @}
247 */
248
249 /* Exported macro ------------------------------------------------------------*/
250 /** @defgroup SPI_LL_Exported_Macros SPI Exported Macros
251 * @{
252 */
253
254 /** @defgroup SPI_LL_EM_WRITE_READ Common Write and read registers Macros
255 * @{
256 */
257
258 /**
259 * @brief Write a value in SPI register
260 * @param __INSTANCE__ SPI Instance
261 * @param __REG__ Register to be written
262 * @param __VALUE__ Value to be written in the register
263 * @retval None
264 */
265 #define LL_SPI_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
266
267 /**
268 * @brief Read a value in SPI register
269 * @param __INSTANCE__ SPI Instance
270 * @param __REG__ Register to be read
271 * @retval Register value
272 */
273 #define LL_SPI_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
274 /**
275 * @}
276 */
277
278 /**
279 * @}
280 */
281
282 /* Exported functions --------------------------------------------------------*/
283 /** @defgroup SPI_LL_Exported_Functions SPI Exported Functions
284 * @{
285 */
286
287 /** @defgroup SPI_LL_EF_Configuration Configuration
288 * @{
289 */
290
291 /**
292 * @brief Enable SPI peripheral
293 * @rmtoll CR1 SPE LL_SPI_Enable
294 * @param SPIx SPI Instance
295 * @retval None
296 */
LL_SPI_Enable(SPI_TypeDef * SPIx)297 __STATIC_INLINE void LL_SPI_Enable(SPI_TypeDef *SPIx)
298 {
299 SET_BIT(SPIx->CR1, SPI_CR1_SPE);
300 }
301
302 /**
303 * @brief Disable SPI peripheral
304 * @note When disabling the SPI, follow the procedure described in the Reference Manual.
305 * @rmtoll CR1 SPE LL_SPI_Disable
306 * @param SPIx SPI Instance
307 * @retval None
308 */
LL_SPI_Disable(SPI_TypeDef * SPIx)309 __STATIC_INLINE void LL_SPI_Disable(SPI_TypeDef *SPIx)
310 {
311 CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE);
312 }
313
314 /**
315 * @brief Check if SPI peripheral is enabled
316 * @rmtoll CR1 SPE LL_SPI_IsEnabled
317 * @param SPIx SPI Instance
318 * @retval State of bit (1 or 0).
319 */
LL_SPI_IsEnabled(SPI_TypeDef * SPIx)320 __STATIC_INLINE uint32_t LL_SPI_IsEnabled(SPI_TypeDef *SPIx)
321 {
322 return ((READ_BIT(SPIx->CR1, SPI_CR1_SPE) == (SPI_CR1_SPE)) ? 1UL : 0UL);
323 }
324
325 /**
326 * @brief Set SPI operation mode to Master or Slave
327 * @note This bit should not be changed when communication is ongoing.
328 * @rmtoll CR1 MSTR LL_SPI_SetMode\n
329 * CR1 SSI LL_SPI_SetMode
330 * @param SPIx SPI Instance
331 * @param Mode This parameter can be one of the following values:
332 * @arg @ref LL_SPI_MODE_MASTER
333 * @arg @ref LL_SPI_MODE_SLAVE
334 * @retval None
335 */
LL_SPI_SetMode(SPI_TypeDef * SPIx,uint32_t Mode)336 __STATIC_INLINE void LL_SPI_SetMode(SPI_TypeDef *SPIx, uint32_t Mode)
337 {
338 MODIFY_REG(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI, Mode);
339 }
340
341 /**
342 * @brief Get SPI operation mode (Master or Slave)
343 * @rmtoll CR1 MSTR LL_SPI_GetMode\n
344 * CR1 SSI LL_SPI_GetMode
345 * @param SPIx SPI Instance
346 * @retval Returned value can be one of the following values:
347 * @arg @ref LL_SPI_MODE_MASTER
348 * @arg @ref LL_SPI_MODE_SLAVE
349 */
LL_SPI_GetMode(SPI_TypeDef * SPIx)350 __STATIC_INLINE uint32_t LL_SPI_GetMode(SPI_TypeDef *SPIx)
351 {
352 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI));
353 }
354
355 /**
356 * @brief Set serial protocol used
357 * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation.
358 * @rmtoll CR2 FRF LL_SPI_SetStandard
359 * @param SPIx SPI Instance
360 * @param Standard This parameter can be one of the following values:
361 * @arg @ref LL_SPI_PROTOCOL_MOTOROLA
362 * @arg @ref LL_SPI_PROTOCOL_TI
363 * @retval None
364 */
LL_SPI_SetStandard(SPI_TypeDef * SPIx,uint32_t Standard)365 __STATIC_INLINE void LL_SPI_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard)
366 {
367 MODIFY_REG(SPIx->CR2, SPI_CR2_FRF, Standard);
368 }
369
370 /**
371 * @brief Get serial protocol used
372 * @rmtoll CR2 FRF LL_SPI_GetStandard
373 * @param SPIx SPI Instance
374 * @retval Returned value can be one of the following values:
375 * @arg @ref LL_SPI_PROTOCOL_MOTOROLA
376 * @arg @ref LL_SPI_PROTOCOL_TI
377 */
LL_SPI_GetStandard(SPI_TypeDef * SPIx)378 __STATIC_INLINE uint32_t LL_SPI_GetStandard(SPI_TypeDef *SPIx)
379 {
380 return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRF));
381 }
382
383 /**
384 * @brief Set clock phase
385 * @note This bit should not be changed when communication is ongoing.
386 * This bit is not used in SPI TI mode.
387 * @rmtoll CR1 CPHA LL_SPI_SetClockPhase
388 * @param SPIx SPI Instance
389 * @param ClockPhase This parameter can be one of the following values:
390 * @arg @ref LL_SPI_PHASE_1EDGE
391 * @arg @ref LL_SPI_PHASE_2EDGE
392 * @retval None
393 */
LL_SPI_SetClockPhase(SPI_TypeDef * SPIx,uint32_t ClockPhase)394 __STATIC_INLINE void LL_SPI_SetClockPhase(SPI_TypeDef *SPIx, uint32_t ClockPhase)
395 {
396 MODIFY_REG(SPIx->CR1, SPI_CR1_CPHA, ClockPhase);
397 }
398
399 /**
400 * @brief Get clock phase
401 * @rmtoll CR1 CPHA LL_SPI_GetClockPhase
402 * @param SPIx SPI Instance
403 * @retval Returned value can be one of the following values:
404 * @arg @ref LL_SPI_PHASE_1EDGE
405 * @arg @ref LL_SPI_PHASE_2EDGE
406 */
LL_SPI_GetClockPhase(SPI_TypeDef * SPIx)407 __STATIC_INLINE uint32_t LL_SPI_GetClockPhase(SPI_TypeDef *SPIx)
408 {
409 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPHA));
410 }
411
412 /**
413 * @brief Set clock polarity
414 * @note This bit should not be changed when communication is ongoing.
415 * This bit is not used in SPI TI mode.
416 * @rmtoll CR1 CPOL LL_SPI_SetClockPolarity
417 * @param SPIx SPI Instance
418 * @param ClockPolarity This parameter can be one of the following values:
419 * @arg @ref LL_SPI_POLARITY_LOW
420 * @arg @ref LL_SPI_POLARITY_HIGH
421 * @retval None
422 */
LL_SPI_SetClockPolarity(SPI_TypeDef * SPIx,uint32_t ClockPolarity)423 __STATIC_INLINE void LL_SPI_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity)
424 {
425 MODIFY_REG(SPIx->CR1, SPI_CR1_CPOL, ClockPolarity);
426 }
427
428 /**
429 * @brief Get clock polarity
430 * @rmtoll CR1 CPOL LL_SPI_GetClockPolarity
431 * @param SPIx SPI Instance
432 * @retval Returned value can be one of the following values:
433 * @arg @ref LL_SPI_POLARITY_LOW
434 * @arg @ref LL_SPI_POLARITY_HIGH
435 */
LL_SPI_GetClockPolarity(SPI_TypeDef * SPIx)436 __STATIC_INLINE uint32_t LL_SPI_GetClockPolarity(SPI_TypeDef *SPIx)
437 {
438 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPOL));
439 }
440
441 /**
442 * @brief Set baud rate prescaler
443 * @note These bits should not be changed when communication is ongoing. SPI BaudRate = fPCLK/Prescaler.
444 * @rmtoll CR1 BR LL_SPI_SetBaudRatePrescaler
445 * @param SPIx SPI Instance
446 * @param BaudRate This parameter can be one of the following values:
447 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2
448 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4
449 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8
450 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16
451 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32
452 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64
453 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128
454 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256
455 * @retval None
456 */
LL_SPI_SetBaudRatePrescaler(SPI_TypeDef * SPIx,uint32_t BaudRate)457 __STATIC_INLINE void LL_SPI_SetBaudRatePrescaler(SPI_TypeDef *SPIx, uint32_t BaudRate)
458 {
459 MODIFY_REG(SPIx->CR1, SPI_CR1_BR, BaudRate);
460 }
461
462 /**
463 * @brief Get baud rate prescaler
464 * @rmtoll CR1 BR LL_SPI_GetBaudRatePrescaler
465 * @param SPIx SPI Instance
466 * @retval Returned value can be one of the following values:
467 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2
468 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4
469 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8
470 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16
471 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32
472 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64
473 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128
474 * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256
475 */
LL_SPI_GetBaudRatePrescaler(SPI_TypeDef * SPIx)476 __STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler(SPI_TypeDef *SPIx)
477 {
478 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_BR));
479 }
480
481 /**
482 * @brief Set transfer bit order
483 * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode.
484 * @rmtoll CR1 LSBFIRST LL_SPI_SetTransferBitOrder
485 * @param SPIx SPI Instance
486 * @param BitOrder This parameter can be one of the following values:
487 * @arg @ref LL_SPI_LSB_FIRST
488 * @arg @ref LL_SPI_MSB_FIRST
489 * @retval None
490 */
LL_SPI_SetTransferBitOrder(SPI_TypeDef * SPIx,uint32_t BitOrder)491 __STATIC_INLINE void LL_SPI_SetTransferBitOrder(SPI_TypeDef *SPIx, uint32_t BitOrder)
492 {
493 MODIFY_REG(SPIx->CR1, SPI_CR1_LSBFIRST, BitOrder);
494 }
495
496 /**
497 * @brief Get transfer bit order
498 * @rmtoll CR1 LSBFIRST LL_SPI_GetTransferBitOrder
499 * @param SPIx SPI Instance
500 * @retval Returned value can be one of the following values:
501 * @arg @ref LL_SPI_LSB_FIRST
502 * @arg @ref LL_SPI_MSB_FIRST
503 */
LL_SPI_GetTransferBitOrder(SPI_TypeDef * SPIx)504 __STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder(SPI_TypeDef *SPIx)
505 {
506 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_LSBFIRST));
507 }
508
509 /**
510 * @brief Set transfer direction mode
511 * @note For Half-Duplex mode, Rx Direction is set by default.
512 * In master mode, the MOSI pin is used and in slave mode, the MISO pin is used for Half-Duplex.
513 * @rmtoll CR1 RXONLY LL_SPI_SetTransferDirection\n
514 * CR1 BIDIMODE LL_SPI_SetTransferDirection\n
515 * CR1 BIDIOE LL_SPI_SetTransferDirection
516 * @param SPIx SPI Instance
517 * @param TransferDirection This parameter can be one of the following values:
518 * @arg @ref LL_SPI_FULL_DUPLEX
519 * @arg @ref LL_SPI_SIMPLEX_RX
520 * @arg @ref LL_SPI_HALF_DUPLEX_RX
521 * @arg @ref LL_SPI_HALF_DUPLEX_TX
522 * @retval None
523 */
LL_SPI_SetTransferDirection(SPI_TypeDef * SPIx,uint32_t TransferDirection)524 __STATIC_INLINE void LL_SPI_SetTransferDirection(SPI_TypeDef *SPIx, uint32_t TransferDirection)
525 {
526 MODIFY_REG(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE, TransferDirection);
527 }
528
529 /**
530 * @brief Get transfer direction mode
531 * @rmtoll CR1 RXONLY LL_SPI_GetTransferDirection\n
532 * CR1 BIDIMODE LL_SPI_GetTransferDirection\n
533 * CR1 BIDIOE LL_SPI_GetTransferDirection
534 * @param SPIx SPI Instance
535 * @retval Returned value can be one of the following values:
536 * @arg @ref LL_SPI_FULL_DUPLEX
537 * @arg @ref LL_SPI_SIMPLEX_RX
538 * @arg @ref LL_SPI_HALF_DUPLEX_RX
539 * @arg @ref LL_SPI_HALF_DUPLEX_TX
540 */
LL_SPI_GetTransferDirection(SPI_TypeDef * SPIx)541 __STATIC_INLINE uint32_t LL_SPI_GetTransferDirection(SPI_TypeDef *SPIx)
542 {
543 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE));
544 }
545
546 /**
547 * @brief Set frame data width
548 * @rmtoll CR1 DFF LL_SPI_SetDataWidth
549 * @param SPIx SPI Instance
550 * @param DataWidth This parameter can be one of the following values:
551 * @arg @ref LL_SPI_DATAWIDTH_8BIT
552 * @arg @ref LL_SPI_DATAWIDTH_16BIT
553 * @retval None
554 */
LL_SPI_SetDataWidth(SPI_TypeDef * SPIx,uint32_t DataWidth)555 __STATIC_INLINE void LL_SPI_SetDataWidth(SPI_TypeDef *SPIx, uint32_t DataWidth)
556 {
557 MODIFY_REG(SPIx->CR1, SPI_CR1_DFF, DataWidth);
558 }
559
560 /**
561 * @brief Get frame data width
562 * @rmtoll CR1 DFF LL_SPI_GetDataWidth
563 * @param SPIx SPI Instance
564 * @retval Returned value can be one of the following values:
565 * @arg @ref LL_SPI_DATAWIDTH_8BIT
566 * @arg @ref LL_SPI_DATAWIDTH_16BIT
567 */
LL_SPI_GetDataWidth(SPI_TypeDef * SPIx)568 __STATIC_INLINE uint32_t LL_SPI_GetDataWidth(SPI_TypeDef *SPIx)
569 {
570 return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_DFF));
571 }
572
573 /**
574 * @}
575 */
576
577 /** @defgroup SPI_LL_EF_CRC_Management CRC Management
578 * @{
579 */
580
581 /**
582 * @brief Enable CRC
583 * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation.
584 * @rmtoll CR1 CRCEN LL_SPI_EnableCRC
585 * @param SPIx SPI Instance
586 * @retval None
587 */
LL_SPI_EnableCRC(SPI_TypeDef * SPIx)588 __STATIC_INLINE void LL_SPI_EnableCRC(SPI_TypeDef *SPIx)
589 {
590 SET_BIT(SPIx->CR1, SPI_CR1_CRCEN);
591 }
592
593 /**
594 * @brief Disable CRC
595 * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation.
596 * @rmtoll CR1 CRCEN LL_SPI_DisableCRC
597 * @param SPIx SPI Instance
598 * @retval None
599 */
LL_SPI_DisableCRC(SPI_TypeDef * SPIx)600 __STATIC_INLINE void LL_SPI_DisableCRC(SPI_TypeDef *SPIx)
601 {
602 CLEAR_BIT(SPIx->CR1, SPI_CR1_CRCEN);
603 }
604
605 /**
606 * @brief Check if CRC is enabled
607 * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation.
608 * @rmtoll CR1 CRCEN LL_SPI_IsEnabledCRC
609 * @param SPIx SPI Instance
610 * @retval State of bit (1 or 0).
611 */
LL_SPI_IsEnabledCRC(SPI_TypeDef * SPIx)612 __STATIC_INLINE uint32_t LL_SPI_IsEnabledCRC(SPI_TypeDef *SPIx)
613 {
614 return ((READ_BIT(SPIx->CR1, SPI_CR1_CRCEN) == (SPI_CR1_CRCEN)) ? 1UL : 0UL);
615 }
616
617 /**
618 * @brief Set CRCNext to transfer CRC on the line
619 * @note This bit has to be written as soon as the last data is written in the SPIx_DR register.
620 * @rmtoll CR1 CRCNEXT LL_SPI_SetCRCNext
621 * @param SPIx SPI Instance
622 * @retval None
623 */
LL_SPI_SetCRCNext(SPI_TypeDef * SPIx)624 __STATIC_INLINE void LL_SPI_SetCRCNext(SPI_TypeDef *SPIx)
625 {
626 SET_BIT(SPIx->CR1, SPI_CR1_CRCNEXT);
627 }
628
629 /**
630 * @brief Set polynomial for CRC calculation
631 * @rmtoll CRCPR CRCPOLY LL_SPI_SetCRCPolynomial
632 * @param SPIx SPI Instance
633 * @param CRCPoly This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF
634 * @retval None
635 */
LL_SPI_SetCRCPolynomial(SPI_TypeDef * SPIx,uint32_t CRCPoly)636 __STATIC_INLINE void LL_SPI_SetCRCPolynomial(SPI_TypeDef *SPIx, uint32_t CRCPoly)
637 {
638 WRITE_REG(SPIx->CRCPR, (uint16_t)CRCPoly);
639 }
640
641 /**
642 * @brief Get polynomial for CRC calculation
643 * @rmtoll CRCPR CRCPOLY LL_SPI_GetCRCPolynomial
644 * @param SPIx SPI Instance
645 * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF
646 */
LL_SPI_GetCRCPolynomial(SPI_TypeDef * SPIx)647 __STATIC_INLINE uint32_t LL_SPI_GetCRCPolynomial(SPI_TypeDef *SPIx)
648 {
649 return (uint32_t)(READ_REG(SPIx->CRCPR));
650 }
651
652 /**
653 * @brief Get Rx CRC
654 * @rmtoll RXCRCR RXCRC LL_SPI_GetRxCRC
655 * @param SPIx SPI Instance
656 * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF
657 */
LL_SPI_GetRxCRC(SPI_TypeDef * SPIx)658 __STATIC_INLINE uint32_t LL_SPI_GetRxCRC(SPI_TypeDef *SPIx)
659 {
660 return (uint32_t)(READ_REG(SPIx->RXCRCR));
661 }
662
663 /**
664 * @brief Get Tx CRC
665 * @rmtoll TXCRCR TXCRC LL_SPI_GetTxCRC
666 * @param SPIx SPI Instance
667 * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF
668 */
LL_SPI_GetTxCRC(SPI_TypeDef * SPIx)669 __STATIC_INLINE uint32_t LL_SPI_GetTxCRC(SPI_TypeDef *SPIx)
670 {
671 return (uint32_t)(READ_REG(SPIx->TXCRCR));
672 }
673
674 /**
675 * @}
676 */
677
678 /** @defgroup SPI_LL_EF_NSS_Management Slave Select Pin Management
679 * @{
680 */
681
682 /**
683 * @brief Set NSS mode
684 * @note LL_SPI_NSS_SOFT Mode is not used in SPI TI mode.
685 * @rmtoll CR1 SSM LL_SPI_SetNSSMode\n
686 * @rmtoll CR2 SSOE LL_SPI_SetNSSMode
687 * @param SPIx SPI Instance
688 * @param NSS This parameter can be one of the following values:
689 * @arg @ref LL_SPI_NSS_SOFT
690 * @arg @ref LL_SPI_NSS_HARD_INPUT
691 * @arg @ref LL_SPI_NSS_HARD_OUTPUT
692 * @retval None
693 */
LL_SPI_SetNSSMode(SPI_TypeDef * SPIx,uint32_t NSS)694 __STATIC_INLINE void LL_SPI_SetNSSMode(SPI_TypeDef *SPIx, uint32_t NSS)
695 {
696 MODIFY_REG(SPIx->CR1, SPI_CR1_SSM, NSS);
697 MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, ((uint32_t)(NSS >> 16U)));
698 }
699
700 /**
701 * @brief Get NSS mode
702 * @rmtoll CR1 SSM LL_SPI_GetNSSMode\n
703 * @rmtoll CR2 SSOE LL_SPI_GetNSSMode
704 * @param SPIx SPI Instance
705 * @retval Returned value can be one of the following values:
706 * @arg @ref LL_SPI_NSS_SOFT
707 * @arg @ref LL_SPI_NSS_HARD_INPUT
708 * @arg @ref LL_SPI_NSS_HARD_OUTPUT
709 */
LL_SPI_GetNSSMode(SPI_TypeDef * SPIx)710 __STATIC_INLINE uint32_t LL_SPI_GetNSSMode(SPI_TypeDef *SPIx)
711 {
712 uint32_t Ssm = (READ_BIT(SPIx->CR1, SPI_CR1_SSM));
713 uint32_t Ssoe = (READ_BIT(SPIx->CR2, SPI_CR2_SSOE) << 16U);
714 return (Ssm | Ssoe);
715 }
716
717 /**
718 * @}
719 */
720
721 /** @defgroup SPI_LL_EF_FLAG_Management FLAG Management
722 * @{
723 */
724
725 /**
726 * @brief Check if Rx buffer is not empty
727 * @rmtoll SR RXNE LL_SPI_IsActiveFlag_RXNE
728 * @param SPIx SPI Instance
729 * @retval State of bit (1 or 0).
730 */
LL_SPI_IsActiveFlag_RXNE(SPI_TypeDef * SPIx)731 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_RXNE(SPI_TypeDef *SPIx)
732 {
733 return ((READ_BIT(SPIx->SR, SPI_SR_RXNE) == (SPI_SR_RXNE)) ? 1UL : 0UL);
734 }
735
736 /**
737 * @brief Check if Tx buffer is empty
738 * @rmtoll SR TXE LL_SPI_IsActiveFlag_TXE
739 * @param SPIx SPI Instance
740 * @retval State of bit (1 or 0).
741 */
LL_SPI_IsActiveFlag_TXE(SPI_TypeDef * SPIx)742 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_TXE(SPI_TypeDef *SPIx)
743 {
744 return ((READ_BIT(SPIx->SR, SPI_SR_TXE) == (SPI_SR_TXE)) ? 1UL : 0UL);
745 }
746
747 /**
748 * @brief Get CRC error flag
749 * @rmtoll SR CRCERR LL_SPI_IsActiveFlag_CRCERR
750 * @param SPIx SPI Instance
751 * @retval State of bit (1 or 0).
752 */
LL_SPI_IsActiveFlag_CRCERR(SPI_TypeDef * SPIx)753 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_CRCERR(SPI_TypeDef *SPIx)
754 {
755 return ((READ_BIT(SPIx->SR, SPI_SR_CRCERR) == (SPI_SR_CRCERR)) ? 1UL : 0UL);
756 }
757
758 /**
759 * @brief Get mode fault error flag
760 * @rmtoll SR MODF LL_SPI_IsActiveFlag_MODF
761 * @param SPIx SPI Instance
762 * @retval State of bit (1 or 0).
763 */
LL_SPI_IsActiveFlag_MODF(SPI_TypeDef * SPIx)764 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_MODF(SPI_TypeDef *SPIx)
765 {
766 return ((READ_BIT(SPIx->SR, SPI_SR_MODF) == (SPI_SR_MODF)) ? 1UL : 0UL);
767 }
768
769 /**
770 * @brief Get overrun error flag
771 * @rmtoll SR OVR LL_SPI_IsActiveFlag_OVR
772 * @param SPIx SPI Instance
773 * @retval State of bit (1 or 0).
774 */
LL_SPI_IsActiveFlag_OVR(SPI_TypeDef * SPIx)775 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_OVR(SPI_TypeDef *SPIx)
776 {
777 return ((READ_BIT(SPIx->SR, SPI_SR_OVR) == (SPI_SR_OVR)) ? 1UL : 0UL);
778 }
779
780 /**
781 * @brief Get busy flag
782 * @note The BSY flag is cleared under any one of the following conditions:
783 * -When the SPI is correctly disabled
784 * -When a fault is detected in Master mode (MODF bit set to 1)
785 * -In Master mode, when it finishes a data transmission and no new data is ready to be
786 * sent
787 * -In Slave mode, when the BSY flag is set to '0' for at least one SPI clock cycle between
788 * each data transfer.
789 * @rmtoll SR BSY LL_SPI_IsActiveFlag_BSY
790 * @param SPIx SPI Instance
791 * @retval State of bit (1 or 0).
792 */
LL_SPI_IsActiveFlag_BSY(SPI_TypeDef * SPIx)793 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY(SPI_TypeDef *SPIx)
794 {
795 return ((READ_BIT(SPIx->SR, SPI_SR_BSY) == (SPI_SR_BSY)) ? 1UL : 0UL);
796 }
797
798 /**
799 * @brief Get frame format error flag
800 * @rmtoll SR FRE LL_SPI_IsActiveFlag_FRE
801 * @param SPIx SPI Instance
802 * @retval State of bit (1 or 0).
803 */
LL_SPI_IsActiveFlag_FRE(SPI_TypeDef * SPIx)804 __STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_FRE(SPI_TypeDef *SPIx)
805 {
806 return ((READ_BIT(SPIx->SR, SPI_SR_FRE) == (SPI_SR_FRE)) ? 1UL : 0UL);
807 }
808
809 /**
810 * @brief Clear CRC error flag
811 * @rmtoll SR CRCERR LL_SPI_ClearFlag_CRCERR
812 * @param SPIx SPI Instance
813 * @retval None
814 */
LL_SPI_ClearFlag_CRCERR(SPI_TypeDef * SPIx)815 __STATIC_INLINE void LL_SPI_ClearFlag_CRCERR(SPI_TypeDef *SPIx)
816 {
817 CLEAR_BIT(SPIx->SR, SPI_SR_CRCERR);
818 }
819
820 /**
821 * @brief Clear mode fault error flag
822 * @note Clearing this flag is done by a read access to the SPIx_SR
823 * register followed by a write access to the SPIx_CR1 register
824 * @rmtoll SR MODF LL_SPI_ClearFlag_MODF
825 * @param SPIx SPI Instance
826 * @retval None
827 */
LL_SPI_ClearFlag_MODF(SPI_TypeDef * SPIx)828 __STATIC_INLINE void LL_SPI_ClearFlag_MODF(SPI_TypeDef *SPIx)
829 {
830 __IO uint32_t tmpreg_sr;
831 tmpreg_sr = SPIx->SR;
832 (void) tmpreg_sr;
833 CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE);
834 }
835
836 /**
837 * @brief Clear overrun error flag
838 * @note Clearing this flag is done by a read access to the SPIx_DR
839 * register followed by a read access to the SPIx_SR register
840 * @rmtoll SR OVR LL_SPI_ClearFlag_OVR
841 * @param SPIx SPI Instance
842 * @retval None
843 */
LL_SPI_ClearFlag_OVR(SPI_TypeDef * SPIx)844 __STATIC_INLINE void LL_SPI_ClearFlag_OVR(SPI_TypeDef *SPIx)
845 {
846 __IO uint32_t tmpreg;
847 tmpreg = SPIx->DR;
848 (void) tmpreg;
849 tmpreg = SPIx->SR;
850 (void) tmpreg;
851 }
852
853 /**
854 * @brief Clear frame format error flag
855 * @note Clearing this flag is done by reading SPIx_SR register
856 * @rmtoll SR FRE LL_SPI_ClearFlag_FRE
857 * @param SPIx SPI Instance
858 * @retval None
859 */
LL_SPI_ClearFlag_FRE(SPI_TypeDef * SPIx)860 __STATIC_INLINE void LL_SPI_ClearFlag_FRE(SPI_TypeDef *SPIx)
861 {
862 __IO uint32_t tmpreg;
863 tmpreg = SPIx->SR;
864 (void) tmpreg;
865 }
866
867 /**
868 * @}
869 */
870
871 /** @defgroup SPI_LL_EF_IT_Management Interrupt Management
872 * @{
873 */
874
875 /**
876 * @brief Enable error interrupt
877 * @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode).
878 * @rmtoll CR2 ERRIE LL_SPI_EnableIT_ERR
879 * @param SPIx SPI Instance
880 * @retval None
881 */
LL_SPI_EnableIT_ERR(SPI_TypeDef * SPIx)882 __STATIC_INLINE void LL_SPI_EnableIT_ERR(SPI_TypeDef *SPIx)
883 {
884 SET_BIT(SPIx->CR2, SPI_CR2_ERRIE);
885 }
886
887 /**
888 * @brief Enable Rx buffer not empty interrupt
889 * @rmtoll CR2 RXNEIE LL_SPI_EnableIT_RXNE
890 * @param SPIx SPI Instance
891 * @retval None
892 */
LL_SPI_EnableIT_RXNE(SPI_TypeDef * SPIx)893 __STATIC_INLINE void LL_SPI_EnableIT_RXNE(SPI_TypeDef *SPIx)
894 {
895 SET_BIT(SPIx->CR2, SPI_CR2_RXNEIE);
896 }
897
898 /**
899 * @brief Enable Tx buffer empty interrupt
900 * @rmtoll CR2 TXEIE LL_SPI_EnableIT_TXE
901 * @param SPIx SPI Instance
902 * @retval None
903 */
LL_SPI_EnableIT_TXE(SPI_TypeDef * SPIx)904 __STATIC_INLINE void LL_SPI_EnableIT_TXE(SPI_TypeDef *SPIx)
905 {
906 SET_BIT(SPIx->CR2, SPI_CR2_TXEIE);
907 }
908
909 /**
910 * @brief Disable error interrupt
911 * @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode).
912 * @rmtoll CR2 ERRIE LL_SPI_DisableIT_ERR
913 * @param SPIx SPI Instance
914 * @retval None
915 */
LL_SPI_DisableIT_ERR(SPI_TypeDef * SPIx)916 __STATIC_INLINE void LL_SPI_DisableIT_ERR(SPI_TypeDef *SPIx)
917 {
918 CLEAR_BIT(SPIx->CR2, SPI_CR2_ERRIE);
919 }
920
921 /**
922 * @brief Disable Rx buffer not empty interrupt
923 * @rmtoll CR2 RXNEIE LL_SPI_DisableIT_RXNE
924 * @param SPIx SPI Instance
925 * @retval None
926 */
LL_SPI_DisableIT_RXNE(SPI_TypeDef * SPIx)927 __STATIC_INLINE void LL_SPI_DisableIT_RXNE(SPI_TypeDef *SPIx)
928 {
929 CLEAR_BIT(SPIx->CR2, SPI_CR2_RXNEIE);
930 }
931
932 /**
933 * @brief Disable Tx buffer empty interrupt
934 * @rmtoll CR2 TXEIE LL_SPI_DisableIT_TXE
935 * @param SPIx SPI Instance
936 * @retval None
937 */
LL_SPI_DisableIT_TXE(SPI_TypeDef * SPIx)938 __STATIC_INLINE void LL_SPI_DisableIT_TXE(SPI_TypeDef *SPIx)
939 {
940 CLEAR_BIT(SPIx->CR2, SPI_CR2_TXEIE);
941 }
942
943 /**
944 * @brief Check if error interrupt is enabled
945 * @rmtoll CR2 ERRIE LL_SPI_IsEnabledIT_ERR
946 * @param SPIx SPI Instance
947 * @retval State of bit (1 or 0).
948 */
LL_SPI_IsEnabledIT_ERR(SPI_TypeDef * SPIx)949 __STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_ERR(SPI_TypeDef *SPIx)
950 {
951 return ((READ_BIT(SPIx->CR2, SPI_CR2_ERRIE) == (SPI_CR2_ERRIE)) ? 1UL : 0UL);
952 }
953
954 /**
955 * @brief Check if Rx buffer not empty interrupt is enabled
956 * @rmtoll CR2 RXNEIE LL_SPI_IsEnabledIT_RXNE
957 * @param SPIx SPI Instance
958 * @retval State of bit (1 or 0).
959 */
LL_SPI_IsEnabledIT_RXNE(SPI_TypeDef * SPIx)960 __STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_RXNE(SPI_TypeDef *SPIx)
961 {
962 return ((READ_BIT(SPIx->CR2, SPI_CR2_RXNEIE) == (SPI_CR2_RXNEIE)) ? 1UL : 0UL);
963 }
964
965 /**
966 * @brief Check if Tx buffer empty interrupt
967 * @rmtoll CR2 TXEIE LL_SPI_IsEnabledIT_TXE
968 * @param SPIx SPI Instance
969 * @retval State of bit (1 or 0).
970 */
LL_SPI_IsEnabledIT_TXE(SPI_TypeDef * SPIx)971 __STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_TXE(SPI_TypeDef *SPIx)
972 {
973 return ((READ_BIT(SPIx->CR2, SPI_CR2_TXEIE) == (SPI_CR2_TXEIE)) ? 1UL : 0UL);
974 }
975
976 /**
977 * @}
978 */
979
980 /** @defgroup SPI_LL_EF_DMA_Management DMA Management
981 * @{
982 */
983
984 /**
985 * @brief Enable DMA Rx
986 * @rmtoll CR2 RXDMAEN LL_SPI_EnableDMAReq_RX
987 * @param SPIx SPI Instance
988 * @retval None
989 */
LL_SPI_EnableDMAReq_RX(SPI_TypeDef * SPIx)990 __STATIC_INLINE void LL_SPI_EnableDMAReq_RX(SPI_TypeDef *SPIx)
991 {
992 SET_BIT(SPIx->CR2, SPI_CR2_RXDMAEN);
993 }
994
995 /**
996 * @brief Disable DMA Rx
997 * @rmtoll CR2 RXDMAEN LL_SPI_DisableDMAReq_RX
998 * @param SPIx SPI Instance
999 * @retval None
1000 */
LL_SPI_DisableDMAReq_RX(SPI_TypeDef * SPIx)1001 __STATIC_INLINE void LL_SPI_DisableDMAReq_RX(SPI_TypeDef *SPIx)
1002 {
1003 CLEAR_BIT(SPIx->CR2, SPI_CR2_RXDMAEN);
1004 }
1005
1006 /**
1007 * @brief Check if DMA Rx is enabled
1008 * @rmtoll CR2 RXDMAEN LL_SPI_IsEnabledDMAReq_RX
1009 * @param SPIx SPI Instance
1010 * @retval State of bit (1 or 0).
1011 */
LL_SPI_IsEnabledDMAReq_RX(SPI_TypeDef * SPIx)1012 __STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx)
1013 {
1014 return ((READ_BIT(SPIx->CR2, SPI_CR2_RXDMAEN) == (SPI_CR2_RXDMAEN)) ? 1UL : 0UL);
1015 }
1016
1017 /**
1018 * @brief Enable DMA Tx
1019 * @rmtoll CR2 TXDMAEN LL_SPI_EnableDMAReq_TX
1020 * @param SPIx SPI Instance
1021 * @retval None
1022 */
LL_SPI_EnableDMAReq_TX(SPI_TypeDef * SPIx)1023 __STATIC_INLINE void LL_SPI_EnableDMAReq_TX(SPI_TypeDef *SPIx)
1024 {
1025 SET_BIT(SPIx->CR2, SPI_CR2_TXDMAEN);
1026 }
1027
1028 /**
1029 * @brief Disable DMA Tx
1030 * @rmtoll CR2 TXDMAEN LL_SPI_DisableDMAReq_TX
1031 * @param SPIx SPI Instance
1032 * @retval None
1033 */
LL_SPI_DisableDMAReq_TX(SPI_TypeDef * SPIx)1034 __STATIC_INLINE void LL_SPI_DisableDMAReq_TX(SPI_TypeDef *SPIx)
1035 {
1036 CLEAR_BIT(SPIx->CR2, SPI_CR2_TXDMAEN);
1037 }
1038
1039 /**
1040 * @brief Check if DMA Tx is enabled
1041 * @rmtoll CR2 TXDMAEN LL_SPI_IsEnabledDMAReq_TX
1042 * @param SPIx SPI Instance
1043 * @retval State of bit (1 or 0).
1044 */
LL_SPI_IsEnabledDMAReq_TX(SPI_TypeDef * SPIx)1045 __STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx)
1046 {
1047 return ((READ_BIT(SPIx->CR2, SPI_CR2_TXDMAEN) == (SPI_CR2_TXDMAEN)) ? 1UL : 0UL);
1048 }
1049
1050 /**
1051 * @brief Get the data register address used for DMA transfer
1052 * @rmtoll DR DR LL_SPI_DMA_GetRegAddr
1053 * @param SPIx SPI Instance
1054 * @retval Address of data register
1055 */
LL_SPI_DMA_GetRegAddr(SPI_TypeDef * SPIx)1056 __STATIC_INLINE uint32_t LL_SPI_DMA_GetRegAddr(SPI_TypeDef *SPIx)
1057 {
1058 return (uint32_t) &(SPIx->DR);
1059 }
1060
1061 /**
1062 * @}
1063 */
1064
1065 /** @defgroup SPI_LL_EF_DATA_Management DATA Management
1066 * @{
1067 */
1068
1069 /**
1070 * @brief Read 8-Bits in the data register
1071 * @rmtoll DR DR LL_SPI_ReceiveData8
1072 * @param SPIx SPI Instance
1073 * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFF
1074 */
LL_SPI_ReceiveData8(SPI_TypeDef * SPIx)1075 __STATIC_INLINE uint8_t LL_SPI_ReceiveData8(SPI_TypeDef *SPIx)
1076 {
1077 return (*((__IO uint8_t *)&SPIx->DR));
1078 }
1079
1080 /**
1081 * @brief Read 16-Bits in the data register
1082 * @rmtoll DR DR LL_SPI_ReceiveData16
1083 * @param SPIx SPI Instance
1084 * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFFFF
1085 */
LL_SPI_ReceiveData16(SPI_TypeDef * SPIx)1086 __STATIC_INLINE uint16_t LL_SPI_ReceiveData16(SPI_TypeDef *SPIx)
1087 {
1088 return (uint16_t)(READ_REG(SPIx->DR));
1089 }
1090
1091 /**
1092 * @brief Write 8-Bits in the data register
1093 * @rmtoll DR DR LL_SPI_TransmitData8
1094 * @param SPIx SPI Instance
1095 * @param TxData Value between Min_Data=0x00 and Max_Data=0xFF
1096 * @retval None
1097 */
LL_SPI_TransmitData8(SPI_TypeDef * SPIx,uint8_t TxData)1098 __STATIC_INLINE void LL_SPI_TransmitData8(SPI_TypeDef *SPIx, uint8_t TxData)
1099 {
1100 #if defined (__GNUC__)
1101 __IO uint8_t *spidr = ((__IO uint8_t *)&SPIx->DR);
1102 *spidr = TxData;
1103 #else
1104 *((__IO uint8_t *)&SPIx->DR) = TxData;
1105 #endif /* __GNUC__ */
1106 }
1107
1108 /**
1109 * @brief Write 16-Bits in the data register
1110 * @rmtoll DR DR LL_SPI_TransmitData16
1111 * @param SPIx SPI Instance
1112 * @param TxData Value between Min_Data=0x00 and Max_Data=0xFFFF
1113 * @retval None
1114 */
LL_SPI_TransmitData16(SPI_TypeDef * SPIx,uint16_t TxData)1115 __STATIC_INLINE void LL_SPI_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData)
1116 {
1117 #if defined (__GNUC__)
1118 __IO uint16_t *spidr = ((__IO uint16_t *)&SPIx->DR);
1119 *spidr = TxData;
1120 #else
1121 SPIx->DR = TxData;
1122 #endif /* __GNUC__ */
1123 }
1124
1125 /**
1126 * @}
1127 */
1128 #if defined(USE_FULL_LL_DRIVER)
1129 /** @defgroup SPI_LL_EF_Init Initialization and de-initialization functions
1130 * @{
1131 */
1132
1133 ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx);
1134 ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct);
1135 void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct);
1136
1137 /**
1138 * @}
1139 */
1140 #endif /* USE_FULL_LL_DRIVER */
1141 /**
1142 * @}
1143 */
1144
1145 /**
1146 * @}
1147 */
1148
1149 /** @defgroup I2S_LL I2S
1150 * @{
1151 */
1152
1153 /* Private variables ---------------------------------------------------------*/
1154 /* Private constants ---------------------------------------------------------*/
1155 /* Private macros ------------------------------------------------------------*/
1156
1157 /* Exported types ------------------------------------------------------------*/
1158 #if defined(USE_FULL_LL_DRIVER)
1159 /** @defgroup I2S_LL_ES_INIT I2S Exported Init structure
1160 * @{
1161 */
1162
1163 /**
1164 * @brief I2S Init structure definition
1165 */
1166
1167 typedef struct
1168 {
1169 uint32_t Mode; /*!< Specifies the I2S operating mode.
1170 This parameter can be a value of @ref I2S_LL_EC_MODE
1171
1172 This feature can be modified afterwards using unitary function @ref LL_I2S_SetTransferMode().*/
1173
1174 uint32_t Standard; /*!< Specifies the standard used for the I2S communication.
1175 This parameter can be a value of @ref I2S_LL_EC_STANDARD
1176
1177 This feature can be modified afterwards using unitary function @ref LL_I2S_SetStandard().*/
1178
1179
1180 uint32_t DataFormat; /*!< Specifies the data format for the I2S communication.
1181 This parameter can be a value of @ref I2S_LL_EC_DATA_FORMAT
1182
1183 This feature can be modified afterwards using unitary function @ref LL_I2S_SetDataFormat().*/
1184
1185
1186 uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not.
1187 This parameter can be a value of @ref I2S_LL_EC_MCLK_OUTPUT
1188
1189 This feature can be modified afterwards using unitary functions @ref LL_I2S_EnableMasterClock() or @ref LL_I2S_DisableMasterClock.*/
1190
1191
1192 uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication.
1193 This parameter can be a value of @ref I2S_LL_EC_AUDIO_FREQ
1194
1195 Audio Frequency can be modified afterwards using Reference manual formulas to calculate Prescaler Linear, Parity
1196 and unitary functions @ref LL_I2S_SetPrescalerLinear() and @ref LL_I2S_SetPrescalerParity() to set it.*/
1197
1198
1199 uint32_t ClockPolarity; /*!< Specifies the idle state of the I2S clock.
1200 This parameter can be a value of @ref I2S_LL_EC_POLARITY
1201
1202 This feature can be modified afterwards using unitary function @ref LL_I2S_SetClockPolarity().*/
1203
1204 } LL_I2S_InitTypeDef;
1205
1206 /**
1207 * @}
1208 */
1209 #endif /*USE_FULL_LL_DRIVER*/
1210
1211 /* Exported constants --------------------------------------------------------*/
1212 /** @defgroup I2S_LL_Exported_Constants I2S Exported Constants
1213 * @{
1214 */
1215
1216 /** @defgroup I2S_LL_EC_GET_FLAG Get Flags Defines
1217 * @brief Flags defines which can be used with LL_I2S_ReadReg function
1218 * @{
1219 */
1220 #define LL_I2S_SR_RXNE LL_SPI_SR_RXNE /*!< Rx buffer not empty flag */
1221 #define LL_I2S_SR_TXE LL_SPI_SR_TXE /*!< Tx buffer empty flag */
1222 #define LL_I2S_SR_BSY LL_SPI_SR_BSY /*!< Busy flag */
1223 #define LL_I2S_SR_UDR SPI_SR_UDR /*!< Underrun flag */
1224 #define LL_I2S_SR_OVR LL_SPI_SR_OVR /*!< Overrun flag */
1225 #define LL_I2S_SR_FRE LL_SPI_SR_FRE /*!< TI mode frame format error flag */
1226 /**
1227 * @}
1228 */
1229
1230 /** @defgroup SPI_LL_EC_IT IT Defines
1231 * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions
1232 * @{
1233 */
1234 #define LL_I2S_CR2_RXNEIE LL_SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */
1235 #define LL_I2S_CR2_TXEIE LL_SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */
1236 #define LL_I2S_CR2_ERRIE LL_SPI_CR2_ERRIE /*!< Error interrupt enable */
1237 /**
1238 * @}
1239 */
1240
1241 /** @defgroup I2S_LL_EC_DATA_FORMAT Data format
1242 * @{
1243 */
1244 #define LL_I2S_DATAFORMAT_16B 0x00000000U /*!< Data length 16 bits, Channel length 16bit */
1245 #define LL_I2S_DATAFORMAT_16B_EXTENDED (SPI_I2SCFGR_CHLEN) /*!< Data length 16 bits, Channel length 32bit */
1246 #define LL_I2S_DATAFORMAT_24B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_0) /*!< Data length 24 bits, Channel length 32bit */
1247 #define LL_I2S_DATAFORMAT_32B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_1) /*!< Data length 16 bits, Channel length 32bit */
1248 /**
1249 * @}
1250 */
1251
1252 /** @defgroup I2S_LL_EC_POLARITY Clock Polarity
1253 * @{
1254 */
1255 #define LL_I2S_POLARITY_LOW 0x00000000U /*!< Clock steady state is low level */
1256 #define LL_I2S_POLARITY_HIGH (SPI_I2SCFGR_CKPOL) /*!< Clock steady state is high level */
1257 /**
1258 * @}
1259 */
1260
1261 /** @defgroup I2S_LL_EC_STANDARD I2s Standard
1262 * @{
1263 */
1264 #define LL_I2S_STANDARD_PHILIPS 0x00000000U /*!< I2S standard philips */
1265 #define LL_I2S_STANDARD_MSB (SPI_I2SCFGR_I2SSTD_0) /*!< MSB justified standard (left justified) */
1266 #define LL_I2S_STANDARD_LSB (SPI_I2SCFGR_I2SSTD_1) /*!< LSB justified standard (right justified) */
1267 #define LL_I2S_STANDARD_PCM_SHORT (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1) /*!< PCM standard, short frame synchronization */
1268 #define LL_I2S_STANDARD_PCM_LONG (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1 | SPI_I2SCFGR_PCMSYNC) /*!< PCM standard, long frame synchronization */
1269 /**
1270 * @}
1271 */
1272
1273 /** @defgroup I2S_LL_EC_MODE Operation Mode
1274 * @{
1275 */
1276 #define LL_I2S_MODE_SLAVE_TX 0x00000000U /*!< Slave Tx configuration */
1277 #define LL_I2S_MODE_SLAVE_RX (SPI_I2SCFGR_I2SCFG_0) /*!< Slave Rx configuration */
1278 #define LL_I2S_MODE_MASTER_TX (SPI_I2SCFGR_I2SCFG_1) /*!< Master Tx configuration */
1279 #define LL_I2S_MODE_MASTER_RX (SPI_I2SCFGR_I2SCFG_0 | SPI_I2SCFGR_I2SCFG_1) /*!< Master Rx configuration */
1280 /**
1281 * @}
1282 */
1283
1284 /** @defgroup I2S_LL_EC_PRESCALER_FACTOR Prescaler Factor
1285 * @{
1286 */
1287 #define LL_I2S_PRESCALER_PARITY_EVEN 0x00000000U /*!< Odd factor: Real divider value is = I2SDIV * 2 */
1288 #define LL_I2S_PRESCALER_PARITY_ODD (SPI_I2SPR_ODD >> 8U) /*!< Odd factor: Real divider value is = (I2SDIV * 2)+1 */
1289 /**
1290 * @}
1291 */
1292
1293 #if defined(USE_FULL_LL_DRIVER)
1294
1295 /** @defgroup I2S_LL_EC_MCLK_OUTPUT MCLK Output
1296 * @{
1297 */
1298 #define LL_I2S_MCLK_OUTPUT_DISABLE 0x00000000U /*!< Master clock output is disabled */
1299 #define LL_I2S_MCLK_OUTPUT_ENABLE (SPI_I2SPR_MCKOE) /*!< Master clock output is enabled */
1300 /**
1301 * @}
1302 */
1303
1304 /** @defgroup I2S_LL_EC_AUDIO_FREQ Audio Frequency
1305 * @{
1306 */
1307
1308 #define LL_I2S_AUDIOFREQ_192K 192000U /*!< Audio Frequency configuration 192000 Hz */
1309 #define LL_I2S_AUDIOFREQ_96K 96000U /*!< Audio Frequency configuration 96000 Hz */
1310 #define LL_I2S_AUDIOFREQ_48K 48000U /*!< Audio Frequency configuration 48000 Hz */
1311 #define LL_I2S_AUDIOFREQ_44K 44100U /*!< Audio Frequency configuration 44100 Hz */
1312 #define LL_I2S_AUDIOFREQ_32K 32000U /*!< Audio Frequency configuration 32000 Hz */
1313 #define LL_I2S_AUDIOFREQ_22K 22050U /*!< Audio Frequency configuration 22050 Hz */
1314 #define LL_I2S_AUDIOFREQ_16K 16000U /*!< Audio Frequency configuration 16000 Hz */
1315 #define LL_I2S_AUDIOFREQ_11K 11025U /*!< Audio Frequency configuration 11025 Hz */
1316 #define LL_I2S_AUDIOFREQ_8K 8000U /*!< Audio Frequency configuration 8000 Hz */
1317 #define LL_I2S_AUDIOFREQ_DEFAULT 2U /*!< Audio Freq not specified. Register I2SDIV = 2 */
1318 /**
1319 * @}
1320 */
1321 #endif /* USE_FULL_LL_DRIVER */
1322
1323 /**
1324 * @}
1325 */
1326
1327 /* Exported macro ------------------------------------------------------------*/
1328 /** @defgroup I2S_LL_Exported_Macros I2S Exported Macros
1329 * @{
1330 */
1331
1332 /** @defgroup I2S_LL_EM_WRITE_READ Common Write and read registers Macros
1333 * @{
1334 */
1335
1336 /**
1337 * @brief Write a value in I2S register
1338 * @param __INSTANCE__ I2S Instance
1339 * @param __REG__ Register to be written
1340 * @param __VALUE__ Value to be written in the register
1341 * @retval None
1342 */
1343 #define LL_I2S_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
1344
1345 /**
1346 * @brief Read a value in I2S register
1347 * @param __INSTANCE__ I2S Instance
1348 * @param __REG__ Register to be read
1349 * @retval Register value
1350 */
1351 #define LL_I2S_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
1352 /**
1353 * @}
1354 */
1355
1356 /**
1357 * @}
1358 */
1359
1360
1361 /* Exported functions --------------------------------------------------------*/
1362
1363 /** @defgroup I2S_LL_Exported_Functions I2S Exported Functions
1364 * @{
1365 */
1366
1367 /** @defgroup I2S_LL_EF_Configuration Configuration
1368 * @{
1369 */
1370
1371 /**
1372 * @brief Select I2S mode and Enable I2S peripheral
1373 * @rmtoll I2SCFGR I2SMOD LL_I2S_Enable\n
1374 * I2SCFGR I2SE LL_I2S_Enable
1375 * @param SPIx SPI Instance
1376 * @retval None
1377 */
LL_I2S_Enable(SPI_TypeDef * SPIx)1378 __STATIC_INLINE void LL_I2S_Enable(SPI_TypeDef *SPIx)
1379 {
1380 SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE);
1381 }
1382
1383 /**
1384 * @brief Disable I2S peripheral
1385 * @rmtoll I2SCFGR I2SE LL_I2S_Disable
1386 * @param SPIx SPI Instance
1387 * @retval None
1388 */
LL_I2S_Disable(SPI_TypeDef * SPIx)1389 __STATIC_INLINE void LL_I2S_Disable(SPI_TypeDef *SPIx)
1390 {
1391 CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE);
1392 }
1393
1394 /**
1395 * @brief Check if I2S peripheral is enabled
1396 * @rmtoll I2SCFGR I2SE LL_I2S_IsEnabled
1397 * @param SPIx SPI Instance
1398 * @retval State of bit (1 or 0).
1399 */
LL_I2S_IsEnabled(SPI_TypeDef * SPIx)1400 __STATIC_INLINE uint32_t LL_I2S_IsEnabled(SPI_TypeDef *SPIx)
1401 {
1402 return ((READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SE) == (SPI_I2SCFGR_I2SE)) ? 1UL : 0UL);
1403 }
1404
1405 /**
1406 * @brief Set I2S data frame length
1407 * @rmtoll I2SCFGR DATLEN LL_I2S_SetDataFormat\n
1408 * I2SCFGR CHLEN LL_I2S_SetDataFormat
1409 * @param SPIx SPI Instance
1410 * @param DataFormat This parameter can be one of the following values:
1411 * @arg @ref LL_I2S_DATAFORMAT_16B
1412 * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED
1413 * @arg @ref LL_I2S_DATAFORMAT_24B
1414 * @arg @ref LL_I2S_DATAFORMAT_32B
1415 * @retval None
1416 */
LL_I2S_SetDataFormat(SPI_TypeDef * SPIx,uint32_t DataFormat)1417 __STATIC_INLINE void LL_I2S_SetDataFormat(SPI_TypeDef *SPIx, uint32_t DataFormat)
1418 {
1419 MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN, DataFormat);
1420 }
1421
1422 /**
1423 * @brief Get I2S data frame length
1424 * @rmtoll I2SCFGR DATLEN LL_I2S_GetDataFormat\n
1425 * I2SCFGR CHLEN LL_I2S_GetDataFormat
1426 * @param SPIx SPI Instance
1427 * @retval Returned value can be one of the following values:
1428 * @arg @ref LL_I2S_DATAFORMAT_16B
1429 * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED
1430 * @arg @ref LL_I2S_DATAFORMAT_24B
1431 * @arg @ref LL_I2S_DATAFORMAT_32B
1432 */
LL_I2S_GetDataFormat(SPI_TypeDef * SPIx)1433 __STATIC_INLINE uint32_t LL_I2S_GetDataFormat(SPI_TypeDef *SPIx)
1434 {
1435 return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN));
1436 }
1437
1438 /**
1439 * @brief Set I2S clock polarity
1440 * @rmtoll I2SCFGR CKPOL LL_I2S_SetClockPolarity
1441 * @param SPIx SPI Instance
1442 * @param ClockPolarity This parameter can be one of the following values:
1443 * @arg @ref LL_I2S_POLARITY_LOW
1444 * @arg @ref LL_I2S_POLARITY_HIGH
1445 * @retval None
1446 */
LL_I2S_SetClockPolarity(SPI_TypeDef * SPIx,uint32_t ClockPolarity)1447 __STATIC_INLINE void LL_I2S_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity)
1448 {
1449 SET_BIT(SPIx->I2SCFGR, ClockPolarity);
1450 }
1451
1452 /**
1453 * @brief Get I2S clock polarity
1454 * @rmtoll I2SCFGR CKPOL LL_I2S_GetClockPolarity
1455 * @param SPIx SPI Instance
1456 * @retval Returned value can be one of the following values:
1457 * @arg @ref LL_I2S_POLARITY_LOW
1458 * @arg @ref LL_I2S_POLARITY_HIGH
1459 */
LL_I2S_GetClockPolarity(SPI_TypeDef * SPIx)1460 __STATIC_INLINE uint32_t LL_I2S_GetClockPolarity(SPI_TypeDef *SPIx)
1461 {
1462 return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_CKPOL));
1463 }
1464
1465 /**
1466 * @brief Set I2S standard protocol
1467 * @rmtoll I2SCFGR I2SSTD LL_I2S_SetStandard\n
1468 * I2SCFGR PCMSYNC LL_I2S_SetStandard
1469 * @param SPIx SPI Instance
1470 * @param Standard This parameter can be one of the following values:
1471 * @arg @ref LL_I2S_STANDARD_PHILIPS
1472 * @arg @ref LL_I2S_STANDARD_MSB
1473 * @arg @ref LL_I2S_STANDARD_LSB
1474 * @arg @ref LL_I2S_STANDARD_PCM_SHORT
1475 * @arg @ref LL_I2S_STANDARD_PCM_LONG
1476 * @retval None
1477 */
LL_I2S_SetStandard(SPI_TypeDef * SPIx,uint32_t Standard)1478 __STATIC_INLINE void LL_I2S_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard)
1479 {
1480 MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC, Standard);
1481 }
1482
1483 /**
1484 * @brief Get I2S standard protocol
1485 * @rmtoll I2SCFGR I2SSTD LL_I2S_GetStandard\n
1486 * I2SCFGR PCMSYNC LL_I2S_GetStandard
1487 * @param SPIx SPI Instance
1488 * @retval Returned value can be one of the following values:
1489 * @arg @ref LL_I2S_STANDARD_PHILIPS
1490 * @arg @ref LL_I2S_STANDARD_MSB
1491 * @arg @ref LL_I2S_STANDARD_LSB
1492 * @arg @ref LL_I2S_STANDARD_PCM_SHORT
1493 * @arg @ref LL_I2S_STANDARD_PCM_LONG
1494 */
LL_I2S_GetStandard(SPI_TypeDef * SPIx)1495 __STATIC_INLINE uint32_t LL_I2S_GetStandard(SPI_TypeDef *SPIx)
1496 {
1497 return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC));
1498 }
1499
1500 /**
1501 * @brief Set I2S transfer mode
1502 * @rmtoll I2SCFGR I2SCFG LL_I2S_SetTransferMode
1503 * @param SPIx SPI Instance
1504 * @param Mode This parameter can be one of the following values:
1505 * @arg @ref LL_I2S_MODE_SLAVE_TX
1506 * @arg @ref LL_I2S_MODE_SLAVE_RX
1507 * @arg @ref LL_I2S_MODE_MASTER_TX
1508 * @arg @ref LL_I2S_MODE_MASTER_RX
1509 * @retval None
1510 */
LL_I2S_SetTransferMode(SPI_TypeDef * SPIx,uint32_t Mode)1511 __STATIC_INLINE void LL_I2S_SetTransferMode(SPI_TypeDef *SPIx, uint32_t Mode)
1512 {
1513 MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG, Mode);
1514 }
1515
1516 /**
1517 * @brief Get I2S transfer mode
1518 * @rmtoll I2SCFGR I2SCFG LL_I2S_GetTransferMode
1519 * @param SPIx SPI Instance
1520 * @retval Returned value can be one of the following values:
1521 * @arg @ref LL_I2S_MODE_SLAVE_TX
1522 * @arg @ref LL_I2S_MODE_SLAVE_RX
1523 * @arg @ref LL_I2S_MODE_MASTER_TX
1524 * @arg @ref LL_I2S_MODE_MASTER_RX
1525 */
LL_I2S_GetTransferMode(SPI_TypeDef * SPIx)1526 __STATIC_INLINE uint32_t LL_I2S_GetTransferMode(SPI_TypeDef *SPIx)
1527 {
1528 return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG));
1529 }
1530
1531 /**
1532 * @brief Set I2S linear prescaler
1533 * @rmtoll I2SPR I2SDIV LL_I2S_SetPrescalerLinear
1534 * @param SPIx SPI Instance
1535 * @param PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF
1536 * @retval None
1537 */
LL_I2S_SetPrescalerLinear(SPI_TypeDef * SPIx,uint8_t PrescalerLinear)1538 __STATIC_INLINE void LL_I2S_SetPrescalerLinear(SPI_TypeDef *SPIx, uint8_t PrescalerLinear)
1539 {
1540 MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV, PrescalerLinear);
1541 }
1542
1543 /**
1544 * @brief Get I2S linear prescaler
1545 * @rmtoll I2SPR I2SDIV LL_I2S_GetPrescalerLinear
1546 * @param SPIx SPI Instance
1547 * @retval PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF
1548 */
LL_I2S_GetPrescalerLinear(SPI_TypeDef * SPIx)1549 __STATIC_INLINE uint32_t LL_I2S_GetPrescalerLinear(SPI_TypeDef *SPIx)
1550 {
1551 return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_I2SDIV));
1552 }
1553
1554 /**
1555 * @brief Set I2S parity prescaler
1556 * @rmtoll I2SPR ODD LL_I2S_SetPrescalerParity
1557 * @param SPIx SPI Instance
1558 * @param PrescalerParity This parameter can be one of the following values:
1559 * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN
1560 * @arg @ref LL_I2S_PRESCALER_PARITY_ODD
1561 * @retval None
1562 */
LL_I2S_SetPrescalerParity(SPI_TypeDef * SPIx,uint32_t PrescalerParity)1563 __STATIC_INLINE void LL_I2S_SetPrescalerParity(SPI_TypeDef *SPIx, uint32_t PrescalerParity)
1564 {
1565 MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_ODD, PrescalerParity << 8U);
1566 }
1567
1568 /**
1569 * @brief Get I2S parity prescaler
1570 * @rmtoll I2SPR ODD LL_I2S_GetPrescalerParity
1571 * @param SPIx SPI Instance
1572 * @retval Returned value can be one of the following values:
1573 * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN
1574 * @arg @ref LL_I2S_PRESCALER_PARITY_ODD
1575 */
LL_I2S_GetPrescalerParity(SPI_TypeDef * SPIx)1576 __STATIC_INLINE uint32_t LL_I2S_GetPrescalerParity(SPI_TypeDef *SPIx)
1577 {
1578 return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_ODD) >> 8U);
1579 }
1580
1581 /**
1582 * @brief Enable the master clock output (Pin MCK)
1583 * @rmtoll I2SPR MCKOE LL_I2S_EnableMasterClock
1584 * @param SPIx SPI Instance
1585 * @retval None
1586 */
LL_I2S_EnableMasterClock(SPI_TypeDef * SPIx)1587 __STATIC_INLINE void LL_I2S_EnableMasterClock(SPI_TypeDef *SPIx)
1588 {
1589 SET_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE);
1590 }
1591
1592 /**
1593 * @brief Disable the master clock output (Pin MCK)
1594 * @rmtoll I2SPR MCKOE LL_I2S_DisableMasterClock
1595 * @param SPIx SPI Instance
1596 * @retval None
1597 */
LL_I2S_DisableMasterClock(SPI_TypeDef * SPIx)1598 __STATIC_INLINE void LL_I2S_DisableMasterClock(SPI_TypeDef *SPIx)
1599 {
1600 CLEAR_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE);
1601 }
1602
1603 /**
1604 * @brief Check if the master clock output (Pin MCK) is enabled
1605 * @rmtoll I2SPR MCKOE LL_I2S_IsEnabledMasterClock
1606 * @param SPIx SPI Instance
1607 * @retval State of bit (1 or 0).
1608 */
LL_I2S_IsEnabledMasterClock(SPI_TypeDef * SPIx)1609 __STATIC_INLINE uint32_t LL_I2S_IsEnabledMasterClock(SPI_TypeDef *SPIx)
1610 {
1611 return ((READ_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE) == (SPI_I2SPR_MCKOE)) ? 1UL : 0UL);
1612 }
1613
1614 /**
1615 * @}
1616 */
1617
1618 /** @defgroup I2S_LL_EF_FLAG FLAG Management
1619 * @{
1620 */
1621
1622 /**
1623 * @brief Check if Rx buffer is not empty
1624 * @rmtoll SR RXNE LL_I2S_IsActiveFlag_RXNE
1625 * @param SPIx SPI Instance
1626 * @retval State of bit (1 or 0).
1627 */
LL_I2S_IsActiveFlag_RXNE(SPI_TypeDef * SPIx)1628 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_RXNE(SPI_TypeDef *SPIx)
1629 {
1630 return LL_SPI_IsActiveFlag_RXNE(SPIx);
1631 }
1632
1633 /**
1634 * @brief Check if Tx buffer is empty
1635 * @rmtoll SR TXE LL_I2S_IsActiveFlag_TXE
1636 * @param SPIx SPI Instance
1637 * @retval State of bit (1 or 0).
1638 */
LL_I2S_IsActiveFlag_TXE(SPI_TypeDef * SPIx)1639 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_TXE(SPI_TypeDef *SPIx)
1640 {
1641 return LL_SPI_IsActiveFlag_TXE(SPIx);
1642 }
1643
1644 /**
1645 * @brief Get busy flag
1646 * @rmtoll SR BSY LL_I2S_IsActiveFlag_BSY
1647 * @param SPIx SPI Instance
1648 * @retval State of bit (1 or 0).
1649 */
LL_I2S_IsActiveFlag_BSY(SPI_TypeDef * SPIx)1650 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_BSY(SPI_TypeDef *SPIx)
1651 {
1652 return LL_SPI_IsActiveFlag_BSY(SPIx);
1653 }
1654
1655 /**
1656 * @brief Get overrun error flag
1657 * @rmtoll SR OVR LL_I2S_IsActiveFlag_OVR
1658 * @param SPIx SPI Instance
1659 * @retval State of bit (1 or 0).
1660 */
LL_I2S_IsActiveFlag_OVR(SPI_TypeDef * SPIx)1661 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_OVR(SPI_TypeDef *SPIx)
1662 {
1663 return LL_SPI_IsActiveFlag_OVR(SPIx);
1664 }
1665
1666 /**
1667 * @brief Get underrun error flag
1668 * @rmtoll SR UDR LL_I2S_IsActiveFlag_UDR
1669 * @param SPIx SPI Instance
1670 * @retval State of bit (1 or 0).
1671 */
LL_I2S_IsActiveFlag_UDR(SPI_TypeDef * SPIx)1672 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_UDR(SPI_TypeDef *SPIx)
1673 {
1674 return ((READ_BIT(SPIx->SR, SPI_SR_UDR) == (SPI_SR_UDR)) ? 1UL : 0UL);
1675 }
1676
1677 /**
1678 * @brief Get frame format error flag
1679 * @rmtoll SR FRE LL_I2S_IsActiveFlag_FRE
1680 * @param SPIx SPI Instance
1681 * @retval State of bit (1 or 0).
1682 */
LL_I2S_IsActiveFlag_FRE(SPI_TypeDef * SPIx)1683 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_FRE(SPI_TypeDef *SPIx)
1684 {
1685 return LL_SPI_IsActiveFlag_FRE(SPIx);
1686 }
1687
1688 /**
1689 * @brief Get channel side flag.
1690 * @note 0: Channel Left has to be transmitted or has been received\n
1691 * 1: Channel Right has to be transmitted or has been received\n
1692 * It has no significance in PCM mode.
1693 * @rmtoll SR CHSIDE LL_I2S_IsActiveFlag_CHSIDE
1694 * @param SPIx SPI Instance
1695 * @retval State of bit (1 or 0).
1696 */
LL_I2S_IsActiveFlag_CHSIDE(SPI_TypeDef * SPIx)1697 __STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_CHSIDE(SPI_TypeDef *SPIx)
1698 {
1699 return ((READ_BIT(SPIx->SR, SPI_SR_CHSIDE) == (SPI_SR_CHSIDE)) ? 1UL : 0UL);
1700 }
1701
1702 /**
1703 * @brief Clear overrun error flag
1704 * @rmtoll SR OVR LL_I2S_ClearFlag_OVR
1705 * @param SPIx SPI Instance
1706 * @retval None
1707 */
LL_I2S_ClearFlag_OVR(SPI_TypeDef * SPIx)1708 __STATIC_INLINE void LL_I2S_ClearFlag_OVR(SPI_TypeDef *SPIx)
1709 {
1710 LL_SPI_ClearFlag_OVR(SPIx);
1711 }
1712
1713 /**
1714 * @brief Clear underrun error flag
1715 * @rmtoll SR UDR LL_I2S_ClearFlag_UDR
1716 * @param SPIx SPI Instance
1717 * @retval None
1718 */
LL_I2S_ClearFlag_UDR(SPI_TypeDef * SPIx)1719 __STATIC_INLINE void LL_I2S_ClearFlag_UDR(SPI_TypeDef *SPIx)
1720 {
1721 __IO uint32_t tmpreg;
1722 tmpreg = SPIx->SR;
1723 (void)tmpreg;
1724 }
1725
1726 /**
1727 * @brief Clear frame format error flag
1728 * @rmtoll SR FRE LL_I2S_ClearFlag_FRE
1729 * @param SPIx SPI Instance
1730 * @retval None
1731 */
LL_I2S_ClearFlag_FRE(SPI_TypeDef * SPIx)1732 __STATIC_INLINE void LL_I2S_ClearFlag_FRE(SPI_TypeDef *SPIx)
1733 {
1734 LL_SPI_ClearFlag_FRE(SPIx);
1735 }
1736
1737 /**
1738 * @}
1739 */
1740
1741 /** @defgroup I2S_LL_EF_IT Interrupt Management
1742 * @{
1743 */
1744
1745 /**
1746 * @brief Enable error IT
1747 * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode).
1748 * @rmtoll CR2 ERRIE LL_I2S_EnableIT_ERR
1749 * @param SPIx SPI Instance
1750 * @retval None
1751 */
LL_I2S_EnableIT_ERR(SPI_TypeDef * SPIx)1752 __STATIC_INLINE void LL_I2S_EnableIT_ERR(SPI_TypeDef *SPIx)
1753 {
1754 LL_SPI_EnableIT_ERR(SPIx);
1755 }
1756
1757 /**
1758 * @brief Enable Rx buffer not empty IT
1759 * @rmtoll CR2 RXNEIE LL_I2S_EnableIT_RXNE
1760 * @param SPIx SPI Instance
1761 * @retval None
1762 */
LL_I2S_EnableIT_RXNE(SPI_TypeDef * SPIx)1763 __STATIC_INLINE void LL_I2S_EnableIT_RXNE(SPI_TypeDef *SPIx)
1764 {
1765 LL_SPI_EnableIT_RXNE(SPIx);
1766 }
1767
1768 /**
1769 * @brief Enable Tx buffer empty IT
1770 * @rmtoll CR2 TXEIE LL_I2S_EnableIT_TXE
1771 * @param SPIx SPI Instance
1772 * @retval None
1773 */
LL_I2S_EnableIT_TXE(SPI_TypeDef * SPIx)1774 __STATIC_INLINE void LL_I2S_EnableIT_TXE(SPI_TypeDef *SPIx)
1775 {
1776 LL_SPI_EnableIT_TXE(SPIx);
1777 }
1778
1779 /**
1780 * @brief Disable error IT
1781 * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode).
1782 * @rmtoll CR2 ERRIE LL_I2S_DisableIT_ERR
1783 * @param SPIx SPI Instance
1784 * @retval None
1785 */
LL_I2S_DisableIT_ERR(SPI_TypeDef * SPIx)1786 __STATIC_INLINE void LL_I2S_DisableIT_ERR(SPI_TypeDef *SPIx)
1787 {
1788 LL_SPI_DisableIT_ERR(SPIx);
1789 }
1790
1791 /**
1792 * @brief Disable Rx buffer not empty IT
1793 * @rmtoll CR2 RXNEIE LL_I2S_DisableIT_RXNE
1794 * @param SPIx SPI Instance
1795 * @retval None
1796 */
LL_I2S_DisableIT_RXNE(SPI_TypeDef * SPIx)1797 __STATIC_INLINE void LL_I2S_DisableIT_RXNE(SPI_TypeDef *SPIx)
1798 {
1799 LL_SPI_DisableIT_RXNE(SPIx);
1800 }
1801
1802 /**
1803 * @brief Disable Tx buffer empty IT
1804 * @rmtoll CR2 TXEIE LL_I2S_DisableIT_TXE
1805 * @param SPIx SPI Instance
1806 * @retval None
1807 */
LL_I2S_DisableIT_TXE(SPI_TypeDef * SPIx)1808 __STATIC_INLINE void LL_I2S_DisableIT_TXE(SPI_TypeDef *SPIx)
1809 {
1810 LL_SPI_DisableIT_TXE(SPIx);
1811 }
1812
1813 /**
1814 * @brief Check if ERR IT is enabled
1815 * @rmtoll CR2 ERRIE LL_I2S_IsEnabledIT_ERR
1816 * @param SPIx SPI Instance
1817 * @retval State of bit (1 or 0).
1818 */
LL_I2S_IsEnabledIT_ERR(SPI_TypeDef * SPIx)1819 __STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_ERR(SPI_TypeDef *SPIx)
1820 {
1821 return LL_SPI_IsEnabledIT_ERR(SPIx);
1822 }
1823
1824 /**
1825 * @brief Check if RXNE IT is enabled
1826 * @rmtoll CR2 RXNEIE LL_I2S_IsEnabledIT_RXNE
1827 * @param SPIx SPI Instance
1828 * @retval State of bit (1 or 0).
1829 */
LL_I2S_IsEnabledIT_RXNE(SPI_TypeDef * SPIx)1830 __STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_RXNE(SPI_TypeDef *SPIx)
1831 {
1832 return LL_SPI_IsEnabledIT_RXNE(SPIx);
1833 }
1834
1835 /**
1836 * @brief Check if TXE IT is enabled
1837 * @rmtoll CR2 TXEIE LL_I2S_IsEnabledIT_TXE
1838 * @param SPIx SPI Instance
1839 * @retval State of bit (1 or 0).
1840 */
LL_I2S_IsEnabledIT_TXE(SPI_TypeDef * SPIx)1841 __STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_TXE(SPI_TypeDef *SPIx)
1842 {
1843 return LL_SPI_IsEnabledIT_TXE(SPIx);
1844 }
1845
1846 /**
1847 * @}
1848 */
1849
1850 /** @defgroup I2S_LL_EF_DMA DMA Management
1851 * @{
1852 */
1853
1854 /**
1855 * @brief Enable DMA Rx
1856 * @rmtoll CR2 RXDMAEN LL_I2S_EnableDMAReq_RX
1857 * @param SPIx SPI Instance
1858 * @retval None
1859 */
LL_I2S_EnableDMAReq_RX(SPI_TypeDef * SPIx)1860 __STATIC_INLINE void LL_I2S_EnableDMAReq_RX(SPI_TypeDef *SPIx)
1861 {
1862 LL_SPI_EnableDMAReq_RX(SPIx);
1863 }
1864
1865 /**
1866 * @brief Disable DMA Rx
1867 * @rmtoll CR2 RXDMAEN LL_I2S_DisableDMAReq_RX
1868 * @param SPIx SPI Instance
1869 * @retval None
1870 */
LL_I2S_DisableDMAReq_RX(SPI_TypeDef * SPIx)1871 __STATIC_INLINE void LL_I2S_DisableDMAReq_RX(SPI_TypeDef *SPIx)
1872 {
1873 LL_SPI_DisableDMAReq_RX(SPIx);
1874 }
1875
1876 /**
1877 * @brief Check if DMA Rx is enabled
1878 * @rmtoll CR2 RXDMAEN LL_I2S_IsEnabledDMAReq_RX
1879 * @param SPIx SPI Instance
1880 * @retval State of bit (1 or 0).
1881 */
LL_I2S_IsEnabledDMAReq_RX(SPI_TypeDef * SPIx)1882 __STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx)
1883 {
1884 return LL_SPI_IsEnabledDMAReq_RX(SPIx);
1885 }
1886
1887 /**
1888 * @brief Enable DMA Tx
1889 * @rmtoll CR2 TXDMAEN LL_I2S_EnableDMAReq_TX
1890 * @param SPIx SPI Instance
1891 * @retval None
1892 */
LL_I2S_EnableDMAReq_TX(SPI_TypeDef * SPIx)1893 __STATIC_INLINE void LL_I2S_EnableDMAReq_TX(SPI_TypeDef *SPIx)
1894 {
1895 LL_SPI_EnableDMAReq_TX(SPIx);
1896 }
1897
1898 /**
1899 * @brief Disable DMA Tx
1900 * @rmtoll CR2 TXDMAEN LL_I2S_DisableDMAReq_TX
1901 * @param SPIx SPI Instance
1902 * @retval None
1903 */
LL_I2S_DisableDMAReq_TX(SPI_TypeDef * SPIx)1904 __STATIC_INLINE void LL_I2S_DisableDMAReq_TX(SPI_TypeDef *SPIx)
1905 {
1906 LL_SPI_DisableDMAReq_TX(SPIx);
1907 }
1908
1909 /**
1910 * @brief Check if DMA Tx is enabled
1911 * @rmtoll CR2 TXDMAEN LL_I2S_IsEnabledDMAReq_TX
1912 * @param SPIx SPI Instance
1913 * @retval State of bit (1 or 0).
1914 */
LL_I2S_IsEnabledDMAReq_TX(SPI_TypeDef * SPIx)1915 __STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx)
1916 {
1917 return LL_SPI_IsEnabledDMAReq_TX(SPIx);
1918 }
1919
1920 /**
1921 * @}
1922 */
1923
1924 /** @defgroup I2S_LL_EF_DATA DATA Management
1925 * @{
1926 */
1927
1928 /**
1929 * @brief Read 16-Bits in data register
1930 * @rmtoll DR DR LL_I2S_ReceiveData16
1931 * @param SPIx SPI Instance
1932 * @retval RxData Value between Min_Data=0x0000 and Max_Data=0xFFFF
1933 */
LL_I2S_ReceiveData16(SPI_TypeDef * SPIx)1934 __STATIC_INLINE uint16_t LL_I2S_ReceiveData16(SPI_TypeDef *SPIx)
1935 {
1936 return LL_SPI_ReceiveData16(SPIx);
1937 }
1938
1939 /**
1940 * @brief Write 16-Bits in data register
1941 * @rmtoll DR DR LL_I2S_TransmitData16
1942 * @param SPIx SPI Instance
1943 * @param TxData Value between Min_Data=0x0000 and Max_Data=0xFFFF
1944 * @retval None
1945 */
LL_I2S_TransmitData16(SPI_TypeDef * SPIx,uint16_t TxData)1946 __STATIC_INLINE void LL_I2S_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData)
1947 {
1948 LL_SPI_TransmitData16(SPIx, TxData);
1949 }
1950
1951 /**
1952 * @}
1953 */
1954
1955 #if defined(USE_FULL_LL_DRIVER)
1956 /** @defgroup I2S_LL_EF_Init Initialization and de-initialization functions
1957 * @{
1958 */
1959
1960 ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx);
1961 ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx, LL_I2S_InitTypeDef *I2S_InitStruct);
1962 void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct);
1963 void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity);
1964
1965 /**
1966 * @}
1967 */
1968 #endif /* USE_FULL_LL_DRIVER */
1969
1970 /**
1971 * @}
1972 */
1973
1974 /**
1975 * @}
1976 */
1977
1978 #endif /* defined (SPI1) || defined (SPI2) || defined (SPI3) */
1979
1980 /**
1981 * @}
1982 */
1983
1984 #ifdef __cplusplus
1985 }
1986 #endif
1987
1988 #endif /* STM32F2xx_LL_SPI_H */
1989
1990
