1 //*****************************************************************************
2 // MKM34Z7 startup code for use with MCUXpresso IDE
3 //
4 // Version : 251120
5 //*****************************************************************************
6 //
7 // Copyright 2016-2020 NXP
8 // All rights reserved.
9 //
10 // SPDX-License-Identifier: BSD-3-Clause
11 //*****************************************************************************
12
13 #if defined(DEBUG)
14 #pragma GCC push_options
15 #pragma GCC optimize("Og")
16 #endif // (DEBUG)
17
18 #if defined(__cplusplus)
19 #ifdef __REDLIB__
20 #error Redlib does not support C++
21 #else
22 //*****************************************************************************
23 //
24 // The entry point for the C++ library startup
25 //
26 //*****************************************************************************
27 extern "C" {
28 extern void __libc_init_array(void);
29 }
30 #endif
31 #endif
32
33 #define WEAK __attribute__((weak))
34 #define WEAK_AV __attribute__((weak, section(".after_vectors")))
35 #define ALIAS(f) __attribute__((weak, alias(#f)))
36
37 //*****************************************************************************
38 #if defined(__cplusplus)
39 extern "C" {
40 #endif
41
42 //*****************************************************************************
43 // Flash Configuration block : 16-byte flash configuration field that stores
44 // default protection settings (loaded on reset) and security information that
45 // allows the MCU to restrict access to the Flash Memory module.
46 // Placed at address 0x400 by the linker script.
47 //*****************************************************************************
48 __attribute__((used, section(".FlashConfig"))) const struct
49 {
50 unsigned int word1;
51 unsigned int word2;
52 unsigned int word3;
53 unsigned int word4;
54 } Flash_Config = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE};
55 //*****************************************************************************
56 // Declaration of external SystemInit function
57 //*****************************************************************************
58 #if defined(__USE_CMSIS)
59 extern void SystemInit(void);
60 #endif // (__USE_CMSIS)
61
62 //*****************************************************************************
63 // Forward declaration of the core exception handlers.
64 // When the application defines a handler (with the same name), this will
65 // automatically take precedence over these weak definitions.
66 // If your application is a C++ one, then any interrupt handlers defined
67 // in C++ files within in your main application will need to have C linkage
68 // rather than C++ linkage. To do this, make sure that you are using extern "C"
69 // { .... } around the interrupt handler within your main application code.
70 //*****************************************************************************
71 void ResetISR(void);
72 WEAK void NMI_Handler(void);
73 WEAK void HardFault_Handler(void);
74 WEAK void SVC_Handler(void);
75 WEAK void PendSV_Handler(void);
76 WEAK void SysTick_Handler(void);
77 WEAK void IntDefaultHandler(void);
78
79 //*****************************************************************************
80 // Forward declaration of the application IRQ handlers. When the application
81 // defines a handler (with the same name), this will automatically take
82 // precedence over weak definitions below
83 //*****************************************************************************
84 WEAK void DMA0_IRQHandler(void);
85 WEAK void DMA1_IRQHandler(void);
86 WEAK void DMA2_IRQHandler(void);
87 WEAK void DMA3_IRQHandler(void);
88 WEAK void SPI0_SPI1_IRQHandler(void);
89 WEAK void PDB0_IRQHandler(void);
90 WEAK void PMC_IRQHandler(void);
91 WEAK void TMR0_IRQHandler(void);
92 WEAK void TMR1_IRQHandler(void);
93 WEAK void TMR2_IRQHandler(void);
94 WEAK void TMR3_IRQHandler(void);
95 WEAK void PIT0_PIT1_IRQHandler(void);
96 WEAK void LLWU_IRQHandler(void);
97 WEAK void FTFA_IRQHandler(void);
98 WEAK void CMP0_CMP1_CMP2_IRQHandler(void);
99 WEAK void LCD_IRQHandler(void);
100 WEAK void ADC0_IRQHandler(void);
101 WEAK void PTx_IRQHandler(void);
102 WEAK void RNGA_IRQHandler(void);
103 WEAK void UART0_UART1_UART2_UART3_IRQHandler(void);
104 WEAK void MMAU_IRQHandler(void);
105 WEAK void AFE_CH0_IRQHandler(void);
106 WEAK void AFE_CH1_IRQHandler(void);
107 WEAK void AFE_CH2_IRQHandler(void);
108 WEAK void AFE_CH3_IRQHandler(void);
109 WEAK void RTC_IRQHandler(void);
110 WEAK void I2C0_I2C1_IRQHandler(void);
111 WEAK void LPUART0_IRQHandler(void);
112 WEAK void MCG_IRQHandler(void);
113 WEAK void WDOG_EWM_IRQHandler(void);
114 WEAK void LPTMR0_IRQHandler(void);
115 WEAK void XBAR_IRQHandler(void);
116
117 //*****************************************************************************
118 // Forward declaration of the driver IRQ handlers. These are aliased
119 // to the IntDefaultHandler, which is a 'forever' loop. When the driver
120 // defines a handler (with the same name), this will automatically take
121 // precedence over these weak definitions
122 //*****************************************************************************
123 void DMA0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
124 void DMA1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
125 void DMA2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
126 void DMA3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
127 void SPI0_SPI1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
128 void PDB0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
129 void PMC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
130 void TMR0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
131 void TMR1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
132 void TMR2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
133 void TMR3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
134 void PIT0_PIT1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
135 void LLWU_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
136 void FTFA_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
137 void CMP0_CMP1_CMP2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
138 void LCD_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
139 void ADC0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
140 void PTx_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
141 void RNGA_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
142 void UART0_UART1_UART2_UART3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
143 void MMAU_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
144 void AFE_CH0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
145 void AFE_CH1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
146 void AFE_CH2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
147 void AFE_CH3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
148 void RTC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
149 void I2C0_I2C1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
150 void LPUART0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
151 void MCG_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
152 void WDOG_EWM_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
153 void LPTMR0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
154 void XBAR_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
155
156 //*****************************************************************************
157 // The entry point for the application.
158 // __main() is the entry point for Redlib based applications
159 // main() is the entry point for Newlib based applications
160 //*****************************************************************************
161 #if defined(__REDLIB__)
162 extern void __main(void);
163 #endif
164 extern int main(void);
165
166 //*****************************************************************************
167 // External declaration for the pointer to the stack top from the Linker Script
168 //*****************************************************************************
169 extern void _vStackTop(void);
170 //*****************************************************************************
171 #if defined(__cplusplus)
172 } // extern "C"
173 #endif
174 //*****************************************************************************
175 // The vector table.
176 // This relies on the linker script to place at correct location in memory.
177 //*****************************************************************************
178
179 extern void (*const g_pfnVectors[])(void);
180 extern void *__Vectors __attribute__((alias("g_pfnVectors")));
181
182 __attribute__((used, section(".isr_vector"))) void (*const g_pfnVectors[])(void) = {
183 // Core Level - CM0P
184 &_vStackTop, // The initial stack pointer
185 ResetISR, // The reset handler
186 NMI_Handler, // The NMI handler
187 HardFault_Handler, // The hard fault handler
188 0, // Reserved
189 0, // Reserved
190 0, // Reserved
191 0, // Reserved
192 0, // Reserved
193 0, // Reserved
194 0, // Reserved
195 SVC_Handler, // SVCall handler
196 0, // Reserved
197 0, // Reserved
198 PendSV_Handler, // The PendSV handler
199 SysTick_Handler, // The SysTick handler
200
201 // Chip Level - MKM34Z7
202 DMA0_IRQHandler, // 16: DMA channel 0 transfer complete
203 DMA1_IRQHandler, // 17: DMA channel 1 transfer complete
204 DMA2_IRQHandler, // 18: DMA channel 2 transfer complete
205 DMA3_IRQHandler, // 19: DMA channel 3 transfer complete
206 SPI0_SPI1_IRQHandler, // 20: SPI0/SPI1 ORed interrupt
207 PDB0_IRQHandler, // 21: PDB0 ORed interrupt
208 PMC_IRQHandler, // 22: Low-voltage detect, low-voltage warning
209 TMR0_IRQHandler, // 23: Quad Timer Channel 0
210 TMR1_IRQHandler, // 24: Quad Timer Channel 1
211 TMR2_IRQHandler, // 25: Quad Timer Channel 2
212 TMR3_IRQHandler, // 26: Quad Timer Channel 3
213 PIT0_PIT1_IRQHandler, // 27: PIT0/PIT1 ORed interrupt
214 LLWU_IRQHandler, // 28: Low Leakage Wakeup
215 FTFA_IRQHandler, // 29: Command complete and read collision
216 CMP0_CMP1_CMP2_IRQHandler, // 30: CMP0/CMP1/CMP2 ORed interrupt
217 LCD_IRQHandler, // 31: LCD interrupt
218 ADC0_IRQHandler, // 32: ADC0 interrupt
219 PTx_IRQHandler, // 33: Single interrupt vector for
220 // GPIOA,GPIOB,GPIOC,GPIOD,GPIOE,GPIOF,GPIOG,GPIOH,GPIOI,GPIOJ,GPIOK,GPIOL,GPIOM
221 RNGA_IRQHandler, // 34: RNGA interrupt
222 UART0_UART1_UART2_UART3_IRQHandler, // 35: UART0/UART1/UART2/UART3 ORed interrupt
223 MMAU_IRQHandler, // 36: Memory Mapped Arithmetic Unit interrupt
224 AFE_CH0_IRQHandler, // 37: AFE Channel 0
225 AFE_CH1_IRQHandler, // 38: AFE Channel 1
226 AFE_CH2_IRQHandler, // 39: AFE Channel 2
227 AFE_CH3_IRQHandler, // 40: AFE Channel 3
228 RTC_IRQHandler, // 41: IRTC interrupt
229 I2C0_I2C1_IRQHandler, // 42: I2C0/I2C1 ORed interrupt
230 LPUART0_IRQHandler, // 43: LPUART0 status and error interrupt
231 MCG_IRQHandler, // 44: MCG interrupt
232 WDOG_EWM_IRQHandler, // 45: WDOG/EWM ORed interrupt
233 LPTMR0_IRQHandler, // 46: LPTMR0 interrupt
234 XBAR_IRQHandler, // 47: XBAR interrupt
235
236 }; /* End of g_pfnVectors */
237
238 //*****************************************************************************
239 // Functions to carry out the initialization of RW and BSS data sections. These
240 // are written as separate functions rather than being inlined within the
241 // ResetISR() function in order to cope with MCUs with multiple banks of
242 // memory.
243 //*****************************************************************************
data_init(unsigned int romstart,unsigned int start,unsigned int len)244 __attribute__((section(".after_vectors.init_data"))) void data_init(unsigned int romstart,
245 unsigned int start,
246 unsigned int len)
247 {
248 unsigned int *pulDest = (unsigned int *)start;
249 unsigned int *pulSrc = (unsigned int *)romstart;
250 unsigned int loop;
251 for (loop = 0; loop < len; loop = loop + 4)
252 *pulDest++ = *pulSrc++;
253 }
254
bss_init(unsigned int start,unsigned int len)255 __attribute__((section(".after_vectors.init_bss"))) void bss_init(unsigned int start, unsigned int len)
256 {
257 unsigned int *pulDest = (unsigned int *)start;
258 unsigned int loop;
259 for (loop = 0; loop < len; loop = loop + 4)
260 *pulDest++ = 0;
261 }
262
263 //*****************************************************************************
264 // The following symbols are constructs generated by the linker, indicating
265 // the location of various points in the "Global Section Table". This table is
266 // created by the linker via the Code Red managed linker script mechanism. It
267 // contains the load address, execution address and length of each RW data
268 // section and the execution and length of each BSS (zero initialized) section.
269 //*****************************************************************************
270 extern unsigned int __data_section_table;
271 extern unsigned int __data_section_table_end;
272 extern unsigned int __bss_section_table;
273 extern unsigned int __bss_section_table_end;
274
275 //*****************************************************************************
276 // Reset entry point for your code.
277 // Sets up a simple runtime environment and initializes the C/C++
278 // library.
279 //*****************************************************************************
ResetISR(void)280 __attribute__((section(".after_vectors.reset"))) void ResetISR(void)
281 {
282 // Disable interrupts
283 __asm volatile("cpsid i");
284
285 #if defined(__USE_CMSIS)
286 // If __USE_CMSIS defined, then call CMSIS SystemInit code
287 SystemInit();
288
289 #else
290 // Disable Watchdog
291 // Write 0xC520 to watchdog unlock register
292 *((volatile unsigned short *)0x4005300E) = 0xC520;
293 // Followed by 0xD928 to complete the unlock
294 *((volatile unsigned short *)0x4005300E) = 0xD928;
295 // Now disable watchdog via STCTRLH register
296 *((volatile unsigned short *)0x40053000) = 0x01D2u;
297 #endif // (__USE_CMSIS)
298
299 //
300 // Copy the data sections from flash to SRAM.
301 //
302 unsigned int LoadAddr, ExeAddr, SectionLen;
303 unsigned int *SectionTableAddr;
304
305 // Load base address of Global Section Table
306 SectionTableAddr = &__data_section_table;
307
308 // Copy the data sections from flash to SRAM.
309 while (SectionTableAddr < &__data_section_table_end)
310 {
311 LoadAddr = *SectionTableAddr++;
312 ExeAddr = *SectionTableAddr++;
313 SectionLen = *SectionTableAddr++;
314 data_init(LoadAddr, ExeAddr, SectionLen);
315 }
316
317 // At this point, SectionTableAddr = &__bss_section_table;
318 // Zero fill the bss segment
319 while (SectionTableAddr < &__bss_section_table_end)
320 {
321 ExeAddr = *SectionTableAddr++;
322 SectionLen = *SectionTableAddr++;
323 bss_init(ExeAddr, SectionLen);
324 }
325
326 #if !defined(__USE_CMSIS)
327 // Assume that if __USE_CMSIS defined, then CMSIS SystemInit code
328 // will setup the VTOR register
329
330 // Check to see if we are running the code from a non-zero
331 // address (eg RAM, external flash), in which case we need
332 // to modify the VTOR register to tell the CPU that the
333 // vector table is located at a non-0x0 address.
334 unsigned int *pSCB_VTOR = (unsigned int *)0xE000ED08;
335 if ((unsigned int *)g_pfnVectors != (unsigned int *)0x00000000)
336 {
337 *pSCB_VTOR = (unsigned int)g_pfnVectors;
338 }
339 #endif // (__USE_CMSIS)
340 #if defined(__cplusplus)
341 //
342 // Call C++ library initialisation
343 //
344 __libc_init_array();
345 #endif
346
347 // Reenable interrupts
348 __asm volatile("cpsie i");
349
350 #if defined(__REDLIB__)
351 // Call the Redlib library, which in turn calls main()
352 __main();
353 #else
354 main();
355 #endif
356
357 //
358 // main() shouldn't return, but if it does, we'll just enter an infinite loop
359 //
360 while (1)
361 {
362 ;
363 }
364 }
365
366 //*****************************************************************************
367 // Default core exception handlers. Override the ones here by defining your own
368 // handler routines in your application code.
369 //*****************************************************************************
NMI_Handler(void)370 WEAK_AV void NMI_Handler(void)
371 {
372 while (1)
373 {
374 }
375 }
376
HardFault_Handler(void)377 WEAK_AV void HardFault_Handler(void)
378 {
379 while (1)
380 {
381 }
382 }
383
SVC_Handler(void)384 WEAK_AV void SVC_Handler(void)
385 {
386 while (1)
387 {
388 }
389 }
390
PendSV_Handler(void)391 WEAK_AV void PendSV_Handler(void)
392 {
393 while (1)
394 {
395 }
396 }
397
SysTick_Handler(void)398 WEAK_AV void SysTick_Handler(void)
399 {
400 while (1)
401 {
402 }
403 }
404
405 //*****************************************************************************
406 // Processor ends up here if an unexpected interrupt occurs or a specific
407 // handler is not present in the application code.
408 //*****************************************************************************
IntDefaultHandler(void)409 WEAK_AV void IntDefaultHandler(void)
410 {
411 while (1)
412 {
413 }
414 }
415
416 //*****************************************************************************
417 // Default application exception handlers. Override the ones here by defining
418 // your own handler routines in your application code. These routines call
419 // driver exception handlers or IntDefaultHandler() if no driver exception
420 // handler is included.
421 //*****************************************************************************
DMA0_IRQHandler(void)422 WEAK_AV void DMA0_IRQHandler(void)
423 {
424 DMA0_DriverIRQHandler();
425 }
426
DMA1_IRQHandler(void)427 WEAK_AV void DMA1_IRQHandler(void)
428 {
429 DMA1_DriverIRQHandler();
430 }
431
DMA2_IRQHandler(void)432 WEAK_AV void DMA2_IRQHandler(void)
433 {
434 DMA2_DriverIRQHandler();
435 }
436
DMA3_IRQHandler(void)437 WEAK_AV void DMA3_IRQHandler(void)
438 {
439 DMA3_DriverIRQHandler();
440 }
441
SPI0_SPI1_IRQHandler(void)442 WEAK_AV void SPI0_SPI1_IRQHandler(void)
443 {
444 SPI0_SPI1_DriverIRQHandler();
445 }
446
PDB0_IRQHandler(void)447 WEAK_AV void PDB0_IRQHandler(void)
448 {
449 PDB0_DriverIRQHandler();
450 }
451
PMC_IRQHandler(void)452 WEAK_AV void PMC_IRQHandler(void)
453 {
454 PMC_DriverIRQHandler();
455 }
456
TMR0_IRQHandler(void)457 WEAK_AV void TMR0_IRQHandler(void)
458 {
459 TMR0_DriverIRQHandler();
460 }
461
TMR1_IRQHandler(void)462 WEAK_AV void TMR1_IRQHandler(void)
463 {
464 TMR1_DriverIRQHandler();
465 }
466
TMR2_IRQHandler(void)467 WEAK_AV void TMR2_IRQHandler(void)
468 {
469 TMR2_DriverIRQHandler();
470 }
471
TMR3_IRQHandler(void)472 WEAK_AV void TMR3_IRQHandler(void)
473 {
474 TMR3_DriverIRQHandler();
475 }
476
PIT0_PIT1_IRQHandler(void)477 WEAK_AV void PIT0_PIT1_IRQHandler(void)
478 {
479 PIT0_PIT1_DriverIRQHandler();
480 }
481
LLWU_IRQHandler(void)482 WEAK_AV void LLWU_IRQHandler(void)
483 {
484 LLWU_DriverIRQHandler();
485 }
486
FTFA_IRQHandler(void)487 WEAK_AV void FTFA_IRQHandler(void)
488 {
489 FTFA_DriverIRQHandler();
490 }
491
CMP0_CMP1_CMP2_IRQHandler(void)492 WEAK_AV void CMP0_CMP1_CMP2_IRQHandler(void)
493 {
494 CMP0_CMP1_CMP2_DriverIRQHandler();
495 }
496
LCD_IRQHandler(void)497 WEAK_AV void LCD_IRQHandler(void)
498 {
499 LCD_DriverIRQHandler();
500 }
501
ADC0_IRQHandler(void)502 WEAK_AV void ADC0_IRQHandler(void)
503 {
504 ADC0_DriverIRQHandler();
505 }
506
PTx_IRQHandler(void)507 WEAK_AV void PTx_IRQHandler(void)
508 {
509 PTx_DriverIRQHandler();
510 }
511
RNGA_IRQHandler(void)512 WEAK_AV void RNGA_IRQHandler(void)
513 {
514 RNGA_DriverIRQHandler();
515 }
516
UART0_UART1_UART2_UART3_IRQHandler(void)517 WEAK_AV void UART0_UART1_UART2_UART3_IRQHandler(void)
518 {
519 UART0_UART1_UART2_UART3_DriverIRQHandler();
520 }
521
MMAU_IRQHandler(void)522 WEAK_AV void MMAU_IRQHandler(void)
523 {
524 MMAU_DriverIRQHandler();
525 }
526
AFE_CH0_IRQHandler(void)527 WEAK_AV void AFE_CH0_IRQHandler(void)
528 {
529 AFE_CH0_DriverIRQHandler();
530 }
531
AFE_CH1_IRQHandler(void)532 WEAK_AV void AFE_CH1_IRQHandler(void)
533 {
534 AFE_CH1_DriverIRQHandler();
535 }
536
AFE_CH2_IRQHandler(void)537 WEAK_AV void AFE_CH2_IRQHandler(void)
538 {
539 AFE_CH2_DriverIRQHandler();
540 }
541
AFE_CH3_IRQHandler(void)542 WEAK_AV void AFE_CH3_IRQHandler(void)
543 {
544 AFE_CH3_DriverIRQHandler();
545 }
546
RTC_IRQHandler(void)547 WEAK_AV void RTC_IRQHandler(void)
548 {
549 RTC_DriverIRQHandler();
550 }
551
I2C0_I2C1_IRQHandler(void)552 WEAK_AV void I2C0_I2C1_IRQHandler(void)
553 {
554 I2C0_I2C1_DriverIRQHandler();
555 }
556
LPUART0_IRQHandler(void)557 WEAK_AV void LPUART0_IRQHandler(void)
558 {
559 LPUART0_DriverIRQHandler();
560 }
561
MCG_IRQHandler(void)562 WEAK_AV void MCG_IRQHandler(void)
563 {
564 MCG_DriverIRQHandler();
565 }
566
WDOG_EWM_IRQHandler(void)567 WEAK_AV void WDOG_EWM_IRQHandler(void)
568 {
569 WDOG_EWM_DriverIRQHandler();
570 }
571
LPTMR0_IRQHandler(void)572 WEAK_AV void LPTMR0_IRQHandler(void)
573 {
574 LPTMR0_DriverIRQHandler();
575 }
576
XBAR_IRQHandler(void)577 WEAK_AV void XBAR_IRQHandler(void)
578 {
579 XBAR_DriverIRQHandler();
580 }
581
582 //*****************************************************************************
583
584 #if defined(DEBUG)
585 #pragma GCC pop_options
586 #endif // (DEBUG)
587
