1 //*****************************************************************************
2 // MKE06Z4 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, 0xFFFEFFFF};
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 Reserved16_IRQHandler(void);
84 WEAK void Reserved17_IRQHandler(void);
85 WEAK void Reserved18_IRQHandler(void);
86 WEAK void Reserved19_IRQHandler(void);
87 WEAK void Reserved20_IRQHandler(void);
88 WEAK void FTMRE_IRQHandler(void);
89 WEAK void PMC_IRQHandler(void);
90 WEAK void IRQ_IRQHandler(void);
91 WEAK void I2C0_IRQHandler(void);
92 WEAK void I2C1_IRQHandler(void);
93 WEAK void SPI0_IRQHandler(void);
94 WEAK void SPI1_IRQHandler(void);
95 WEAK void UART0_IRQHandler(void);
96 WEAK void UART1_IRQHandler(void);
97 WEAK void UART2_IRQHandler(void);
98 WEAK void ADC_IRQHandler(void);
99 WEAK void ACMP0_IRQHandler(void);
100 WEAK void FTM0_IRQHandler(void);
101 WEAK void FTM1_IRQHandler(void);
102 WEAK void FTM2_IRQHandler(void);
103 WEAK void RTC_IRQHandler(void);
104 WEAK void ACMP1_IRQHandler(void);
105 WEAK void PIT_CH0_IRQHandler(void);
106 WEAK void PIT_CH1_IRQHandler(void);
107 WEAK void KBI0_IRQHandler(void);
108 WEAK void KBI1_IRQHandler(void);
109 WEAK void Reserved42_IRQHandler(void);
110 WEAK void ICS_IRQHandler(void);
111 WEAK void WDOG_IRQHandler(void);
112 WEAK void PWT_IRQHandler(void);
113 WEAK void MSCAN_1_IRQHandler(void);
114 WEAK void MSCAN_2_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 Reserved16_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
123 void Reserved17_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
124 void Reserved18_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
125 void Reserved19_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
126 void Reserved20_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
127 void FTMRE_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
128 void PMC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
129 void IRQ_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
130 void I2C0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
131 void I2C1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
132 void SPI0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
133 void SPI1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
134 void UART0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
135 void UART1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
136 void UART2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
137 void ADC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
138 void ACMP0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
139 void FTM0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
140 void FTM1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
141 void FTM2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
142 void RTC_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
143 void ACMP1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
144 void PIT_CH0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
145 void PIT_CH1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
146 void KBI0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
147 void KBI1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
148 void Reserved42_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
149 void ICS_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
150 void WDOG_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
151 void PWT_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
152 void MSCAN_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
153
154 //*****************************************************************************
155 // The entry point for the application.
156 // __main() is the entry point for Redlib based applications
157 // main() is the entry point for Newlib based applications
158 //*****************************************************************************
159 #if defined (__REDLIB__)
160 extern void __main(void);
161 #endif
162 extern int main(void);
163
164 //*****************************************************************************
165 // External declaration for the pointer to the stack top from the Linker Script
166 //*****************************************************************************
167 extern void _vStackTop(void);
168 //*****************************************************************************
169 #if defined (__cplusplus)
170 } // extern "C"
171 #endif
172 //*****************************************************************************
173 // The vector table.
174 // This relies on the linker script to place at correct location in memory.
175 //*****************************************************************************
176
177
178
179 extern void (* const g_pfnVectors[])(void);
180 extern void * __Vectors __attribute__ ((alias ("g_pfnVectors")));
181
182 __attribute__ ((used, section(".isr_vector")))
183 void (* const g_pfnVectors[])(void) = {
184 // Core Level - CM0P
185 &_vStackTop, // The initial stack pointer
186 ResetISR, // The reset handler
187 NMI_Handler, // The NMI handler
188 HardFault_Handler, // The hard fault handler
189 0, // Reserved
190 0, // Reserved
191 0, // Reserved
192 0, // Reserved
193 0, // Reserved
194 0, // Reserved
195 0, // Reserved
196 SVC_Handler, // SVCall handler
197 0, // Reserved
198 0, // Reserved
199 PendSV_Handler, // The PendSV handler
200 SysTick_Handler, // The SysTick handler
201
202 // Chip Level - MKE06Z4
203 Reserved16_IRQHandler, // 16: Reserved interrupt
204 Reserved17_IRQHandler, // 17: Reserved interrupt
205 Reserved18_IRQHandler, // 18: Reserved interrupt
206 Reserved19_IRQHandler, // 19: Reserved interrupt
207 Reserved20_IRQHandler, // 20: Reserved interrupt
208 FTMRE_IRQHandler, // 21: Command complete
209 PMC_IRQHandler, // 22: Low-voltage warning
210 IRQ_IRQHandler, // 23: External interrupt
211 I2C0_IRQHandler, // 24: Single interrupt vector for all sources
212 I2C1_IRQHandler, // 25: Single interrupt vector for all sources
213 SPI0_IRQHandler, // 26: Single interrupt vector for all sources
214 SPI1_IRQHandler, // 27: Single interrupt vector for all sources
215 UART0_IRQHandler, // 28: Status and error
216 UART1_IRQHandler, // 29: Status and error
217 UART2_IRQHandler, // 30: Status and error
218 ADC_IRQHandler, // 31: ADC conversion complete interrupt
219 ACMP0_IRQHandler, // 32: Analog comparator 0 interrupt
220 FTM0_IRQHandler, // 33: FTM0 single interrupt vector for all sources
221 FTM1_IRQHandler, // 34: FTM1 single interrupt vector for all sources
222 FTM2_IRQHandler, // 35: FTM2 single interrupt vector for all sources
223 RTC_IRQHandler, // 36: RTC overflow
224 ACMP1_IRQHandler, // 37: Analog comparator 1 interrupt
225 PIT_CH0_IRQHandler, // 38: PIT CH0 overflow
226 PIT_CH1_IRQHandler, // 39: PIT CH1 overflow
227 KBI0_IRQHandler, // 40: Keyboard interrupt0
228 KBI1_IRQHandler, // 41: Keyboard interrupt1
229 Reserved42_IRQHandler, // 42: Reserved interrupt
230 ICS_IRQHandler, // 43: Clock loss of lock
231 WDOG_IRQHandler, // 44: Watchdog timeout
232 PWT_IRQHandler, // 45: Single interrupt vector for all sources
233 MSCAN_1_IRQHandler, // 46: MSCAN Rx Interrupt
234 MSCAN_2_IRQHandler, // 47: MSCAN Tx, Err and Wake-up interrupt
235
236
237 }; /* End of g_pfnVectors */
238
239 //*****************************************************************************
240 // Functions to carry out the initialization of RW and BSS data sections. These
241 // are written as separate functions rather than being inlined within the
242 // ResetISR() function in order to cope with MCUs with multiple banks of
243 // memory.
244 //*****************************************************************************
245 __attribute__ ((section(".after_vectors.init_data")))
data_init(unsigned int romstart,unsigned int start,unsigned int len)246 void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
247 unsigned int *pulDest = (unsigned int*) start;
248 unsigned int *pulSrc = (unsigned int*) romstart;
249 unsigned int loop;
250 for (loop = 0; loop < len; loop = loop + 4)
251 *pulDest++ = *pulSrc++;
252 }
253
254 __attribute__ ((section(".after_vectors.init_bss")))
bss_init(unsigned int start,unsigned int len)255 void bss_init(unsigned int start, unsigned int len) {
256 unsigned int *pulDest = (unsigned int*) start;
257 unsigned int loop;
258 for (loop = 0; loop < len; loop = loop + 4)
259 *pulDest++ = 0;
260 }
261
262 //*****************************************************************************
263 // The following symbols are constructs generated by the linker, indicating
264 // the location of various points in the "Global Section Table". This table is
265 // created by the linker via the Code Red managed linker script mechanism. It
266 // contains the load address, execution address and length of each RW data
267 // section and the execution and length of each BSS (zero initialized) section.
268 //*****************************************************************************
269 extern unsigned int __data_section_table;
270 extern unsigned int __data_section_table_end;
271 extern unsigned int __bss_section_table;
272 extern unsigned int __bss_section_table_end;
273
274 //*****************************************************************************
275 // Reset entry point for your code.
276 // Sets up a simple runtime environment and initializes the C/C++
277 // library.
278 //*****************************************************************************
279 __attribute__ ((naked, section(".after_vectors.reset")))
ResetISR(void)280 void ResetISR(void) {
281
282 // Disable interrupts
283 __asm volatile ("cpsid i");
284
285
286 #if defined (__USE_CMSIS)
287 // If __USE_CMSIS defined, then call CMSIS SystemInit code
288 SystemInit();
289
290 #else
291 // Disable Watchdog
292 // Write watchdog update key to unlock
293 *((volatile unsigned int *)0x40052002) = 0x20;
294 *((volatile unsigned int *)0x40052003) = 0xC5;
295 *((volatile unsigned int *)0x40052002) = 0x28;
296 *((volatile unsigned int *)0x40052003) = 0xD9;
297 // Set timeout value
298 *((volatile unsigned int *)0x40052004) = 0xFF;
299 *((volatile unsigned int *)0x40052005) = 0xFF;
300 // Now disable watchdog via control register
301 volatile unsigned int *WDOG_CS1 = (unsigned int *) 0x40052000;
302 *WDOG_CS1 = (*WDOG_CS1 & ~(1 << 7)) | (1 << 5);
303 #endif // (__USE_CMSIS)
304
305 //
306 // Copy the data sections from flash to SRAM.
307 //
308 unsigned int LoadAddr, ExeAddr, SectionLen;
309 unsigned int *SectionTableAddr;
310
311 // Load base address of Global Section Table
312 SectionTableAddr = &__data_section_table;
313
314 // Copy the data sections from flash to SRAM.
315 while (SectionTableAddr < &__data_section_table_end) {
316 LoadAddr = *SectionTableAddr++;
317 ExeAddr = *SectionTableAddr++;
318 SectionLen = *SectionTableAddr++;
319 data_init(LoadAddr, ExeAddr, SectionLen);
320 }
321
322 // At this point, SectionTableAddr = &__bss_section_table;
323 // Zero fill the bss segment
324 while (SectionTableAddr < &__bss_section_table_end) {
325 ExeAddr = *SectionTableAddr++;
326 SectionLen = *SectionTableAddr++;
327 bss_init(ExeAddr, SectionLen);
328 }
329
330
331 #if !defined (__USE_CMSIS)
332 // Assume that if __USE_CMSIS defined, then CMSIS SystemInit code
333 // will setup the VTOR register
334
335 // Check to see if we are running the code from a non-zero
336 // address (eg RAM, external flash), in which case we need
337 // to modify the VTOR register to tell the CPU that the
338 // vector table is located at a non-0x0 address.
339 unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
340 if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
341 *pSCB_VTOR = (unsigned int)g_pfnVectors;
342 }
343 #endif // (__USE_CMSIS)
344 #if defined (__cplusplus)
345 //
346 // Call C++ library initialisation
347 //
348 __libc_init_array();
349 #endif
350
351 // Reenable interrupts
352 __asm volatile ("cpsie i");
353
354 #if defined (__REDLIB__)
355 // Call the Redlib library, which in turn calls main()
356 __main();
357 #else
358 main();
359 #endif
360
361 //
362 // main() shouldn't return, but if it does, we'll just enter an infinite loop
363 //
364 while (1) {
365 ;
366 }
367 }
368
369 //*****************************************************************************
370 // Default core exception handlers. Override the ones here by defining your own
371 // handler routines in your application code.
372 //*****************************************************************************
NMI_Handler(void)373 WEAK_AV void NMI_Handler(void)
374 { while(1) {}
375 }
376
HardFault_Handler(void)377 WEAK_AV void HardFault_Handler(void)
378 { while(1) {}
379 }
380
SVC_Handler(void)381 WEAK_AV void SVC_Handler(void)
382 { while(1) {}
383 }
384
PendSV_Handler(void)385 WEAK_AV void PendSV_Handler(void)
386 { while(1) {}
387 }
388
SysTick_Handler(void)389 WEAK_AV void SysTick_Handler(void)
390 { while(1) {}
391 }
392
393 //*****************************************************************************
394 // Processor ends up here if an unexpected interrupt occurs or a specific
395 // handler is not present in the application code.
396 //*****************************************************************************
IntDefaultHandler(void)397 WEAK_AV void IntDefaultHandler(void)
398 { while(1) {}
399 }
400
401 //*****************************************************************************
402 // Default application exception handlers. Override the ones here by defining
403 // your own handler routines in your application code. These routines call
404 // driver exception handlers or IntDefaultHandler() if no driver exception
405 // handler is included.
406 //*****************************************************************************
Reserved16_IRQHandler(void)407 WEAK_AV void Reserved16_IRQHandler(void)
408 { Reserved16_DriverIRQHandler();
409 }
410
Reserved17_IRQHandler(void)411 WEAK_AV void Reserved17_IRQHandler(void)
412 { Reserved17_DriverIRQHandler();
413 }
414
Reserved18_IRQHandler(void)415 WEAK_AV void Reserved18_IRQHandler(void)
416 { Reserved18_DriverIRQHandler();
417 }
418
Reserved19_IRQHandler(void)419 WEAK_AV void Reserved19_IRQHandler(void)
420 { Reserved19_DriverIRQHandler();
421 }
422
Reserved20_IRQHandler(void)423 WEAK_AV void Reserved20_IRQHandler(void)
424 { Reserved20_DriverIRQHandler();
425 }
426
FTMRE_IRQHandler(void)427 WEAK_AV void FTMRE_IRQHandler(void)
428 { FTMRE_DriverIRQHandler();
429 }
430
PMC_IRQHandler(void)431 WEAK_AV void PMC_IRQHandler(void)
432 { PMC_DriverIRQHandler();
433 }
434
IRQ_IRQHandler(void)435 WEAK_AV void IRQ_IRQHandler(void)
436 { IRQ_DriverIRQHandler();
437 }
438
I2C0_IRQHandler(void)439 WEAK_AV void I2C0_IRQHandler(void)
440 { I2C0_DriverIRQHandler();
441 }
442
I2C1_IRQHandler(void)443 WEAK_AV void I2C1_IRQHandler(void)
444 { I2C1_DriverIRQHandler();
445 }
446
SPI0_IRQHandler(void)447 WEAK_AV void SPI0_IRQHandler(void)
448 { SPI0_DriverIRQHandler();
449 }
450
SPI1_IRQHandler(void)451 WEAK_AV void SPI1_IRQHandler(void)
452 { SPI1_DriverIRQHandler();
453 }
454
UART0_IRQHandler(void)455 WEAK_AV void UART0_IRQHandler(void)
456 { UART0_DriverIRQHandler();
457 }
458
UART1_IRQHandler(void)459 WEAK_AV void UART1_IRQHandler(void)
460 { UART1_DriverIRQHandler();
461 }
462
UART2_IRQHandler(void)463 WEAK_AV void UART2_IRQHandler(void)
464 { UART2_DriverIRQHandler();
465 }
466
ADC_IRQHandler(void)467 WEAK_AV void ADC_IRQHandler(void)
468 { ADC_DriverIRQHandler();
469 }
470
ACMP0_IRQHandler(void)471 WEAK_AV void ACMP0_IRQHandler(void)
472 { ACMP0_DriverIRQHandler();
473 }
474
FTM0_IRQHandler(void)475 WEAK_AV void FTM0_IRQHandler(void)
476 { FTM0_DriverIRQHandler();
477 }
478
FTM1_IRQHandler(void)479 WEAK_AV void FTM1_IRQHandler(void)
480 { FTM1_DriverIRQHandler();
481 }
482
FTM2_IRQHandler(void)483 WEAK_AV void FTM2_IRQHandler(void)
484 { FTM2_DriverIRQHandler();
485 }
486
RTC_IRQHandler(void)487 WEAK_AV void RTC_IRQHandler(void)
488 { RTC_DriverIRQHandler();
489 }
490
ACMP1_IRQHandler(void)491 WEAK_AV void ACMP1_IRQHandler(void)
492 { ACMP1_DriverIRQHandler();
493 }
494
PIT_CH0_IRQHandler(void)495 WEAK_AV void PIT_CH0_IRQHandler(void)
496 { PIT_CH0_DriverIRQHandler();
497 }
498
PIT_CH1_IRQHandler(void)499 WEAK_AV void PIT_CH1_IRQHandler(void)
500 { PIT_CH1_DriverIRQHandler();
501 }
502
KBI0_IRQHandler(void)503 WEAK_AV void KBI0_IRQHandler(void)
504 { KBI0_DriverIRQHandler();
505 }
506
KBI1_IRQHandler(void)507 WEAK_AV void KBI1_IRQHandler(void)
508 { KBI1_DriverIRQHandler();
509 }
510
Reserved42_IRQHandler(void)511 WEAK_AV void Reserved42_IRQHandler(void)
512 { Reserved42_DriverIRQHandler();
513 }
514
ICS_IRQHandler(void)515 WEAK_AV void ICS_IRQHandler(void)
516 { ICS_DriverIRQHandler();
517 }
518
WDOG_IRQHandler(void)519 WEAK_AV void WDOG_IRQHandler(void)
520 { WDOG_DriverIRQHandler();
521 }
522
PWT_IRQHandler(void)523 WEAK_AV void PWT_IRQHandler(void)
524 { PWT_DriverIRQHandler();
525 }
526
MSCAN_1_IRQHandler(void)527 WEAK_AV void MSCAN_1_IRQHandler(void)
528 { MSCAN_DriverIRQHandler();
529 }
530
MSCAN_2_IRQHandler(void)531 WEAK_AV void MSCAN_2_IRQHandler(void)
532 { MSCAN_DriverIRQHandler();
533 }
534
535 //*****************************************************************************
536
537 #if defined (DEBUG)
538 #pragma GCC pop_options
539 #endif // (DEBUG)
540