1 //*****************************************************************************
2 // MKM35Z7 startup code for use with MCUXpresso IDE
3 //
4 // Version : 160420
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 unsigned int word1;
50 unsigned int word2;
51 unsigned int word3;
52 unsigned int word4;
53 } Flash_Config = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE};
54 //*****************************************************************************
55 // Declaration of external SystemInit function
56 //*****************************************************************************
57 #if defined (__USE_CMSIS)
58 extern void SystemInit(void);
59 #endif // (__USE_CMSIS)
60
61 //*****************************************************************************
62 // Forward declaration of the core exception handlers.
63 // When the application defines a handler (with the same name), this will
64 // automatically take precedence over these weak definitions.
65 // If your application is a C++ one, then any interrupt handlers defined
66 // in C++ files within in your main application will need to have C linkage
67 // rather than C++ linkage. To do this, make sure that you are using extern "C"
68 // { .... } around the interrupt handler within your main application code.
69 //*****************************************************************************
70 void ResetISR(void);
71 WEAK void NMI_Handler(void);
72 WEAK void HardFault_Handler(void);
73 WEAK void SVC_Handler(void);
74 WEAK void PendSV_Handler(void);
75 WEAK void SysTick_Handler(void);
76 WEAK void IntDefaultHandler(void);
77
78 //*****************************************************************************
79 // Forward declaration of the application IRQ handlers. When the application
80 // defines a handler (with the same name), this will automatically take
81 // precedence over weak definitions below
82 //*****************************************************************************
83 WEAK void DMA0_IRQHandler(void);
84 WEAK void DMA1_IRQHandler(void);
85 WEAK void DMA2_IRQHandler(void);
86 WEAK void DMA3_IRQHandler(void);
87 WEAK void SPI0_SPI1_SPI2_IRQHandler(void);
88 WEAK void PDB0_IRQHandler(void);
89 WEAK void PMC_IRQHandler(void);
90 WEAK void TMR0_IRQHandler(void);
91 WEAK void TMR1_IRQHandler(void);
92 WEAK void TMR2_IRQHandler(void);
93 WEAK void TMR3_IRQHandler(void);
94 WEAK void PIT0_PIT1_IRQHandler(void);
95 WEAK void LLWU_IRQHandler(void);
96 WEAK void FTFA_IRQHandler(void);
97 WEAK void CMP0_CMP1_CMP2_IRQHandler(void);
98 WEAK void LCD_IRQHandler(void);
99 WEAK void ADC0_IRQHandler(void);
100 WEAK void PTx_IRQHandler(void);
101 WEAK void RNGA_IRQHandler(void);
102 WEAK void UART0_UART1_UART2_UART3_IRQHandler(void);
103 WEAK void MMAU_IRQHandler(void);
104 WEAK void AFE_CH0_IRQHandler(void);
105 WEAK void AFE_CH1_IRQHandler(void);
106 WEAK void AFE_CH2_IRQHandler(void);
107 WEAK void AFE_CH3_IRQHandler(void);
108 WEAK void RTC_IRQHandler(void);
109 WEAK void I2C0_I2C1_IRQHandler(void);
110 WEAK void LPUART0_IRQHandler(void);
111 WEAK void MCG_IRQHandler(void);
112 WEAK void WDOG_EWM_IRQHandler(void);
113 WEAK void LPTMR0_LPTMR1_IRQHandler(void);
114 WEAK void XBAR_IRQHandler(void);
115
116 //*****************************************************************************
117 // Forward declaration of the driver IRQ handlers. These are aliased
118 // to the IntDefaultHandler, which is a 'forever' loop. When the driver
119 // defines a handler (with the same name), this will automatically take
120 // precedence over these weak definitions
121 //*****************************************************************************
122 void DMA0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
123 void DMA1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
124 void DMA2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
125 void DMA3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
126 void SPI0_SPI1_SPI2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
127 void PDB0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
128 void PMC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
129 void TMR0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
130 void TMR1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
131 void TMR2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
132 void TMR3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
133 void PIT0_PIT1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
134 void LLWU_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
135 void FTFA_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
136 void CMP0_CMP1_CMP2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
137 void LCD_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
138 void ADC0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
139 void PTx_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
140 void RNGA_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
141 void UART0_UART1_UART2_UART3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
142 void MMAU_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
143 void AFE_CH0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
144 void AFE_CH1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
145 void AFE_CH2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
146 void AFE_CH3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
147 void RTC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
148 void I2C0_I2C1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
149 void LPUART0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
150 void MCG_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
151 void WDOG_EWM_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
152 void LPTMR0_LPTMR1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
153 void XBAR_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
154
155 //*****************************************************************************
156 // The entry point for the application.
157 // __main() is the entry point for Redlib based applications
158 // main() is the entry point for Newlib based applications
159 //*****************************************************************************
160 #if defined (__REDLIB__)
161 extern void __main(void);
162 #endif
163 extern int main(void);
164
165 //*****************************************************************************
166 // External declaration for the pointer to the stack top from the Linker Script
167 //*****************************************************************************
168 extern void _vStackTop(void);
169 //*****************************************************************************
170 #if defined (__cplusplus)
171 } // extern "C"
172 #endif
173 //*****************************************************************************
174 // The vector table.
175 // This relies on the linker script to place at correct location in memory.
176 //*****************************************************************************
177
178
179
180 extern void (* const g_pfnVectors[])(void);
181 extern void * __Vectors __attribute__ ((alias ("g_pfnVectors")));
182
183 __attribute__ ((used, section(".isr_vector")))
184 void (* const g_pfnVectors[])(void) = {
185 // Core Level - CM0P
186 &_vStackTop, // The initial stack pointer
187 ResetISR, // The reset handler
188 NMI_Handler, // The NMI handler
189 HardFault_Handler, // The hard fault handler
190 0, // Reserved
191 0, // Reserved
192 0, // Reserved
193 0, // Reserved
194 0, // Reserved
195 0, // Reserved
196 0, // Reserved
197 SVC_Handler, // SVCall handler
198 0, // Reserved
199 0, // Reserved
200 PendSV_Handler, // The PendSV handler
201 SysTick_Handler, // The SysTick handler
202
203 // Chip Level - MKM35Z7
204 DMA0_IRQHandler, // 16: DMA channel 0 transfer complete
205 DMA1_IRQHandler, // 17: DMA channel 1 transfer complete
206 DMA2_IRQHandler, // 18: DMA channel 2 transfer complete
207 DMA3_IRQHandler, // 19: DMA channel 3 transfer complete
208 SPI0_SPI1_SPI2_IRQHandler, // 20: SPI0/SPI1/SPI2 ORed interrupt
209 PDB0_IRQHandler, // 21: PDB0 ORed interrupt
210 PMC_IRQHandler, // 22: Low-voltage detect, low-voltage warning
211 TMR0_IRQHandler, // 23: Quad Timer Channel 0
212 TMR1_IRQHandler, // 24: Quad Timer Channel 1
213 TMR2_IRQHandler, // 25: Quad Timer Channel 2
214 TMR3_IRQHandler, // 26: Quad Timer Channel 3
215 PIT0_PIT1_IRQHandler, // 27: PIT0/PIT1 ORed interrupt
216 LLWU_IRQHandler, // 28: Low Leakage Wakeup
217 FTFA_IRQHandler, // 29: Command complete and read collision
218 CMP0_CMP1_CMP2_IRQHandler, // 30: CMP0/CMP1/CMP2 ORed interrupt
219 LCD_IRQHandler, // 31: LCD interrupt
220 ADC0_IRQHandler, // 32: ADC0 interrupt
221 PTx_IRQHandler, // 33: Single interrupt vector for GPIOA,GPIOB,GPIOC,GPIOD,GPIOE,GPIOF,GPIOG,GPIOH,GPIOI,GPIOJ,GPIOK,GPIOL,GPIOM
222 RNGA_IRQHandler, // 34: RNGA interrupt
223 UART0_UART1_UART2_UART3_IRQHandler, // 35: UART0/UART1/UART2/UART3 ORed interrupt
224 MMAU_IRQHandler, // 36: Memory Mapped Arithmetic Unit interrupt
225 AFE_CH0_IRQHandler, // 37: AFE Channel 0
226 AFE_CH1_IRQHandler, // 38: AFE Channel 1
227 AFE_CH2_IRQHandler, // 39: AFE Channel 2
228 AFE_CH3_IRQHandler, // 40: AFE Channel 3
229 RTC_IRQHandler, // 41: IRTC interrupt
230 I2C0_I2C1_IRQHandler, // 42: I2C0/I2C1 ORed interrupt
231 LPUART0_IRQHandler, // 43: LPUART0 status and error interrupt
232 MCG_IRQHandler, // 44: MCG interrupt
233 WDOG_EWM_IRQHandler, // 45: WDOG/EWM ORed interrupt
234 LPTMR0_LPTMR1_IRQHandler, // 46: LPTMR0/LPTMR1 interrupt
235 XBAR_IRQHandler, // 47: XBAR interrupt
236
237
238 }; /* End of g_pfnVectors */
239
240 //*****************************************************************************
241 // Functions to carry out the initialization of RW and BSS data sections. These
242 // are written as separate functions rather than being inlined within the
243 // ResetISR() function in order to cope with MCUs with multiple banks of
244 // memory.
245 //*****************************************************************************
246 __attribute__ ((section(".after_vectors.init_data")))
data_init(unsigned int romstart,unsigned int start,unsigned int len)247 void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
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
255 __attribute__ ((section(".after_vectors.init_bss")))
bss_init(unsigned int start,unsigned int len)256 void bss_init(unsigned int start, unsigned int len) {
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 //*****************************************************************************
280 __attribute__ ((naked, section(".after_vectors.reset")))
ResetISR(void)281 void ResetISR(void) {
282
283 // Disable interrupts
284 __asm volatile ("cpsid i");
285
286
287 #if defined (__USE_CMSIS)
288 // If __USE_CMSIS defined, then call CMSIS SystemInit code
289 SystemInit();
290
291 #else
292 // Disable Watchdog
293 // Write 0xC520 to watchdog unlock register
294 *((volatile unsigned short *)0x4005300E) = 0xC520;
295 // Followed by 0xD928 to complete the unlock
296 *((volatile unsigned short *)0x4005300E) = 0xD928;
297 // Now disable watchdog via STCTRLH register
298 *((volatile unsigned short *)0x40053000) = 0x01D2u;
299 #endif // (__USE_CMSIS)
300
301 //
302 // Copy the data sections from flash to SRAM.
303 //
304 unsigned int LoadAddr, ExeAddr, SectionLen;
305 unsigned int *SectionTableAddr;
306
307 // Load base address of Global Section Table
308 SectionTableAddr = &__data_section_table;
309
310 // Copy the data sections from flash to SRAM.
311 while (SectionTableAddr < &__data_section_table_end) {
312 LoadAddr = *SectionTableAddr++;
313 ExeAddr = *SectionTableAddr++;
314 SectionLen = *SectionTableAddr++;
315 data_init(LoadAddr, ExeAddr, SectionLen);
316 }
317
318 // At this point, SectionTableAddr = &__bss_section_table;
319 // Zero fill the bss segment
320 while (SectionTableAddr < &__bss_section_table_end) {
321 ExeAddr = *SectionTableAddr++;
322 SectionLen = *SectionTableAddr++;
323 bss_init(ExeAddr, SectionLen);
324 }
325
326
327 #if !defined (__USE_CMSIS)
328 // Assume that if __USE_CMSIS defined, then CMSIS SystemInit code
329 // will setup the VTOR register
330
331 // Check to see if we are running the code from a non-zero
332 // address (eg RAM, external flash), in which case we need
333 // to modify the VTOR register to tell the CPU that the
334 // vector table is located at a non-0x0 address.
335 unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
336 if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
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 // Default core exception handlers. Override the ones here by defining your own
367 // handler routines in your application code.
368 //*****************************************************************************
NMI_Handler(void)369 WEAK_AV void NMI_Handler(void)
370 { while(1) {}
371 }
372
HardFault_Handler(void)373 WEAK_AV void HardFault_Handler(void)
374 { while(1) {}
375 }
376
SVC_Handler(void)377 WEAK_AV void SVC_Handler(void)
378 { while(1) {}
379 }
380
PendSV_Handler(void)381 WEAK_AV void PendSV_Handler(void)
382 { while(1) {}
383 }
384
SysTick_Handler(void)385 WEAK_AV void SysTick_Handler(void)
386 { while(1) {}
387 }
388
389 //*****************************************************************************
390 // Processor ends up here if an unexpected interrupt occurs or a specific
391 // handler is not present in the application code.
392 //*****************************************************************************
IntDefaultHandler(void)393 WEAK_AV void IntDefaultHandler(void)
394 { while(1) {}
395 }
396
397 //*****************************************************************************
398 // Default application exception handlers. Override the ones here by defining
399 // your own handler routines in your application code. These routines call
400 // driver exception handlers or IntDefaultHandler() if no driver exception
401 // handler is included.
402 //*****************************************************************************
DMA0_IRQHandler(void)403 WEAK_AV void DMA0_IRQHandler(void)
404 { DMA0_DriverIRQHandler();
405 }
406
DMA1_IRQHandler(void)407 WEAK_AV void DMA1_IRQHandler(void)
408 { DMA1_DriverIRQHandler();
409 }
410
DMA2_IRQHandler(void)411 WEAK_AV void DMA2_IRQHandler(void)
412 { DMA2_DriverIRQHandler();
413 }
414
DMA3_IRQHandler(void)415 WEAK_AV void DMA3_IRQHandler(void)
416 { DMA3_DriverIRQHandler();
417 }
418
SPI0_SPI1_SPI2_IRQHandler(void)419 WEAK_AV void SPI0_SPI1_SPI2_IRQHandler(void)
420 { SPI0_SPI1_SPI2_DriverIRQHandler();
421 }
422
PDB0_IRQHandler(void)423 WEAK_AV void PDB0_IRQHandler(void)
424 { PDB0_DriverIRQHandler();
425 }
426
PMC_IRQHandler(void)427 WEAK_AV void PMC_IRQHandler(void)
428 { PMC_DriverIRQHandler();
429 }
430
TMR0_IRQHandler(void)431 WEAK_AV void TMR0_IRQHandler(void)
432 { TMR0_DriverIRQHandler();
433 }
434
TMR1_IRQHandler(void)435 WEAK_AV void TMR1_IRQHandler(void)
436 { TMR1_DriverIRQHandler();
437 }
438
TMR2_IRQHandler(void)439 WEAK_AV void TMR2_IRQHandler(void)
440 { TMR2_DriverIRQHandler();
441 }
442
TMR3_IRQHandler(void)443 WEAK_AV void TMR3_IRQHandler(void)
444 { TMR3_DriverIRQHandler();
445 }
446
PIT0_PIT1_IRQHandler(void)447 WEAK_AV void PIT0_PIT1_IRQHandler(void)
448 { PIT0_PIT1_DriverIRQHandler();
449 }
450
LLWU_IRQHandler(void)451 WEAK_AV void LLWU_IRQHandler(void)
452 { LLWU_DriverIRQHandler();
453 }
454
FTFA_IRQHandler(void)455 WEAK_AV void FTFA_IRQHandler(void)
456 { FTFA_DriverIRQHandler();
457 }
458
CMP0_CMP1_CMP2_IRQHandler(void)459 WEAK_AV void CMP0_CMP1_CMP2_IRQHandler(void)
460 { CMP0_CMP1_CMP2_DriverIRQHandler();
461 }
462
LCD_IRQHandler(void)463 WEAK_AV void LCD_IRQHandler(void)
464 { LCD_DriverIRQHandler();
465 }
466
ADC0_IRQHandler(void)467 WEAK_AV void ADC0_IRQHandler(void)
468 { ADC0_DriverIRQHandler();
469 }
470
PTx_IRQHandler(void)471 WEAK_AV void PTx_IRQHandler(void)
472 { PTx_DriverIRQHandler();
473 }
474
RNGA_IRQHandler(void)475 WEAK_AV void RNGA_IRQHandler(void)
476 { RNGA_DriverIRQHandler();
477 }
478
UART0_UART1_UART2_UART3_IRQHandler(void)479 WEAK_AV void UART0_UART1_UART2_UART3_IRQHandler(void)
480 { UART0_UART1_UART2_UART3_DriverIRQHandler();
481 }
482
MMAU_IRQHandler(void)483 WEAK_AV void MMAU_IRQHandler(void)
484 { MMAU_DriverIRQHandler();
485 }
486
AFE_CH0_IRQHandler(void)487 WEAK_AV void AFE_CH0_IRQHandler(void)
488 { AFE_CH0_DriverIRQHandler();
489 }
490
AFE_CH1_IRQHandler(void)491 WEAK_AV void AFE_CH1_IRQHandler(void)
492 { AFE_CH1_DriverIRQHandler();
493 }
494
AFE_CH2_IRQHandler(void)495 WEAK_AV void AFE_CH2_IRQHandler(void)
496 { AFE_CH2_DriverIRQHandler();
497 }
498
AFE_CH3_IRQHandler(void)499 WEAK_AV void AFE_CH3_IRQHandler(void)
500 { AFE_CH3_DriverIRQHandler();
501 }
502
RTC_IRQHandler(void)503 WEAK_AV void RTC_IRQHandler(void)
504 { RTC_DriverIRQHandler();
505 }
506
I2C0_I2C1_IRQHandler(void)507 WEAK_AV void I2C0_I2C1_IRQHandler(void)
508 { I2C0_I2C1_DriverIRQHandler();
509 }
510
LPUART0_IRQHandler(void)511 WEAK_AV void LPUART0_IRQHandler(void)
512 { LPUART0_DriverIRQHandler();
513 }
514
MCG_IRQHandler(void)515 WEAK_AV void MCG_IRQHandler(void)
516 { MCG_DriverIRQHandler();
517 }
518
WDOG_EWM_IRQHandler(void)519 WEAK_AV void WDOG_EWM_IRQHandler(void)
520 { WDOG_EWM_DriverIRQHandler();
521 }
522
LPTMR0_LPTMR1_IRQHandler(void)523 WEAK_AV void LPTMR0_LPTMR1_IRQHandler(void)
524 { LPTMR0_LPTMR1_DriverIRQHandler();
525 }
526
XBAR_IRQHandler(void)527 WEAK_AV void XBAR_IRQHandler(void)
528 { XBAR_DriverIRQHandler();
529 }
530
531 //*****************************************************************************
532
533 #if defined (DEBUG)
534 #pragma GCC pop_options
535 #endif // (DEBUG)
536
