1/* ------------------------------------------------------------------------- */
2/*  @file:    startup_LPC864.s                                               */
3/*  @purpose: CMSIS Cortex-M0P Core Device Startup File                      */
4/*            LPC864                                                         */
5/*  @version: 1.0                                                            */
6/*  @date:    2022-3-15                                                      */
7/*  @build:   b231018                                                        */
8/* ------------------------------------------------------------------------- */
9/*                                                                           */
10/* Copyright 1997-2016 Freescale Semiconductor, Inc.                         */
11/* Copyright 2016-2023 NXP                                                   */
12/* SPDX-License-Identifier: BSD-3-Clause                                     */
13/*****************************************************************************/
14/* Version: GCC for ARM Embedded Processors                                  */
15/*****************************************************************************/
16    .syntax unified
17    .arch armv6-m
18
19    .section .isr_vector, "a"
20    .align 2
21    .globl __Vectors
22__Vectors:
23    .long   __StackTop                                      /* Top of Stack */
24    .long   Reset_Handler                                   /* Reset Handler */
25    .long   NMI_Handler                                     /* NMI Handler*/
26    .long   HardFault_Handler                               /* Hard Fault Handler*/
27    .long   0                                               /* Reserved*/
28    .long   0                                               /* Reserved*/
29    .long   0                                               /* Reserved*/
30    .long   0                                               /* Reserved*/
31    .long   0                                               /* Reserved*/
32    .long   0                                               /* Reserved*/
33    .long   0                                               /* Reserved*/
34    .long   SVC_Handler                                     /* SVCall Handler*/
35    .long   0                                               /* Reserved*/
36    .long   0                                               /* Reserved*/
37    .long   PendSV_Handler                                  /* PendSV Handler*/
38    .long   SysTick_Handler                                 /* SysTick Handler*/
39
40                                                            /* External Interrupts*/
41    .long   SPI0_IRQHandler                                 /* SPI0 interrupt*/
42    .long   SPI1_IRQHandler                                 /* SPI1 interrupt*/
43    .long   Reserved18_IRQHandler                           /* Reserved interrupt*/
44    .long   USART0_IRQHandler                               /* USART0 interrupt*/
45    .long   USART1_IRQHandler                               /* USART1 interrupt*/
46    .long   USART2_IRQHandler                               /* USART2 interrupt*/
47    .long   FTM0_IRQHandler                                 /* FlexTimer0 interrupt*/
48    .long   FTM1_IRQHandler                                 /* FlexTimer1 interrupt*/
49    .long   I2C0_IRQHandler                                 /* I2C0 interrupt*/
50    .long   Reserved25_IRQHandler                           /* Reserved interrupt*/
51    .long   MRT0_IRQHandler                                 /* Multi-rate timer interrupt*/
52    .long   ACMP_IRQHandler                                 /* Analog comparator interrupt*/
53    .long   WDT_IRQHandler                                  /* Windowed watchdog timer interrupt*/
54    .long   BOD_IRQHandler                                  /* BOD interrupts*/
55    .long   FLASH_IRQHandler                                /* flash interrupt*/
56    .long   WKT_IRQHandler                                  /* Self-wake-up timer interrupt*/
57    .long   ADC0_SEQA_IRQHandler                            /* ADC0 sequence A completion.*/
58    .long   ADC0_SEQB_IRQHandler                            /* ADC0 sequence B completion.*/
59    .long   ADC0_THCMP_IRQHandler                           /* ADC0 threshold compare and error.*/
60    .long   ADC0_OVR_IRQHandler                             /* ADC0 overrun*/
61    .long   DMA0_IRQHandler                                 /* DMA0 interrupt*/
62    .long   I3C0_IRQHandler                                 /* I3C0 interrupt*/
63    .long   GPIO_HS_IRQ0_IRQHandler                         /* GPIO group A interrupt*/
64    .long   GPIO_HS_IRQ1_IRQHandler                         /* GPIO group B interrupt*/
65    .long   PIN_INT0_IRQHandler                             /* Pin interrupt 0 or pattern match engine slice 0 interrupt*/
66    .long   PIN_INT1_IRQHandler                             /* Pin interrupt 1 or pattern match engine slice 1 interrupt*/
67    .long   PIN_INT2_IRQHandler                             /* Pin interrupt 2 or pattern match engine slice 2 interrupt*/
68    .long   PIN_INT3_IRQHandler                             /* Pin interrupt 3 or pattern match engine slice 3 interrupt*/
69    .long   PIN_INT4_IRQHandler                             /* Pin interrupt 4 or pattern match engine slice 4 interrupt*/
70    .long   PIN_INT5_IRQHandler                             /* Pin interrupt 5 or pattern match engine slice 5 interrupt*/
71    .long   PIN_INT6_IRQHandler                             /* Pin interrupt 6 or pattern match engine slice 6 interrupt*/
72    .long   PIN_INT7_IRQHandler                             /* Pin interrupt 7 or pattern match engine slice 7 interrupt*/
73
74    .size   __Vectors, . - __Vectors
75
76/*  Variable to store CRP value in. No code read protection enabled by default
77 *  Code Read Protection level (CRP)
78 *    CRP_Level:
79 *      <0xFFFFFFFF=> Disabled
80 *      <0x536AAC95=> NO_ISP
81 *      <0x5963A69C=> CRP1
82 *      <0x963569CA=> CRP2
83 *      <0x63599CA6=> CRP3
84 */
85    #ifndef NO_CRP
86      .section .crp, "a"
87      .long 0xFFFFFFFF
88    #endif
89
90    .text
91    .thumb
92
93#if defined (__cplusplus)
94#ifdef __REDLIB__
95#error Redlib does not support C++
96#endif
97#endif
98/* Reset Handler */
99
100    .thumb_func
101    .align 2
102    .globl   Reset_Handler
103    .weak    Reset_Handler
104    .type    Reset_Handler, %function
105Reset_Handler:
106    cpsid   i               /* Mask interrupts */
107    .equ    VTOR, 0xE000ED08
108    ldr     r0, =VTOR
109    ldr     r1, =__Vectors
110    str     r1, [r0]
111    ldr     r2, [r1]
112    msr     msp, r2
113#ifndef __NO_SYSTEM_INIT
114    ldr   r0,=SystemInit
115    blx   r0
116#endif
117/*     Loop to copy data from read only memory to RAM. The ranges
118 *      of copy from/to are specified by following symbols evaluated in
119 *      linker script.
120 *      __etext: End of code section, i.e., begin of data sections to copy from.
121 *      __data_start__/__data_end__: RAM address range that data should be
122 *      copied to. Both must be aligned to 4 bytes boundary.  */
123
124    ldr    r1, =__etext
125    ldr    r2, =__data_start__
126    ldr    r3, =__data_end__
127
128    subs    r3, r2
129    ble     .LC0
130
131.LC1:
132    subs    r3, 4
133    ldr    r0, [r1,r3]
134    str    r0, [r2,r3]
135    bgt    .LC1
136.LC0:
137
138#ifdef __STARTUP_CLEAR_BSS
139/*     This part of work usually is done in C library startup code. Otherwise,
140 *     define this macro to enable it in this startup.
141 *
142 *     Loop to zero out BSS section, which uses following symbols
143 *     in linker script:
144 *      __bss_start__: start of BSS section. Must align to 4
145 *      __bss_end__: end of BSS section. Must align to 4
146 */
147    ldr r1, =__bss_start__
148    ldr r2, =__bss_end__
149
150    subs    r2, r1
151    ble .LC3
152
153    movs    r0, 0
154.LC2:
155    subs    r2, 4
156    str r0, [r1, r2]
157    bgt .LC2
158.LC3:
159#endif
160    cpsie   i               /* Unmask interrupts */
161#ifndef __START
162#ifdef __REDLIB__
163#define __START __main
164#else
165#define __START _start
166#endif
167#endif
168#ifndef __ATOLLIC__
169    ldr   r0,=__START
170    blx   r0
171#else
172    ldr   r0,=__libc_init_array
173    blx   r0
174    ldr   r0,=main
175    bx    r0
176#endif
177    .pool
178    .size Reset_Handler, . - Reset_Handler
179
180    .align  1
181    .thumb_func
182    .weak DefaultISR
183    .type DefaultISR, %function
184DefaultISR:
185    ldr r0, =DefaultISR
186    bx r0
187    .size DefaultISR, . - DefaultISR
188
189    .align 1
190    .thumb_func
191    .weak NMI_Handler
192    .type NMI_Handler, %function
193NMI_Handler:
194    ldr   r0,=NMI_Handler
195    bx    r0
196    .size NMI_Handler, . - NMI_Handler
197
198    .align 1
199    .thumb_func
200    .weak HardFault_Handler
201    .type HardFault_Handler, %function
202HardFault_Handler:
203    ldr   r0,=HardFault_Handler
204    bx    r0
205    .size HardFault_Handler, . - HardFault_Handler
206
207    .align 1
208    .thumb_func
209    .weak SVC_Handler
210    .type SVC_Handler, %function
211SVC_Handler:
212    ldr   r0,=SVC_Handler
213    bx    r0
214    .size SVC_Handler, . - SVC_Handler
215
216    .align 1
217    .thumb_func
218    .weak PendSV_Handler
219    .type PendSV_Handler, %function
220PendSV_Handler:
221    ldr   r0,=PendSV_Handler
222    bx    r0
223    .size PendSV_Handler, . - PendSV_Handler
224
225    .align 1
226    .thumb_func
227    .weak SysTick_Handler
228    .type SysTick_Handler, %function
229SysTick_Handler:
230    ldr   r0,=SysTick_Handler
231    bx    r0
232    .size SysTick_Handler, . - SysTick_Handler
233
234    .align 1
235    .thumb_func
236    .weak SPI0_IRQHandler
237    .type SPI0_IRQHandler, %function
238SPI0_IRQHandler:
239    ldr   r0,=SPI0_DriverIRQHandler
240    bx    r0
241    .size SPI0_IRQHandler, . - SPI0_IRQHandler
242
243    .align 1
244    .thumb_func
245    .weak SPI1_IRQHandler
246    .type SPI1_IRQHandler, %function
247SPI1_IRQHandler:
248    ldr   r0,=SPI1_DriverIRQHandler
249    bx    r0
250    .size SPI1_IRQHandler, . - SPI1_IRQHandler
251
252    .align 1
253    .thumb_func
254    .weak Reserved18_IRQHandler
255    .type Reserved18_IRQHandler, %function
256Reserved18_IRQHandler:
257    ldr   r0,=Reserved18_DriverIRQHandler
258    bx    r0
259    .size Reserved18_IRQHandler, . - Reserved18_IRQHandler
260
261    .align 1
262    .thumb_func
263    .weak USART0_IRQHandler
264    .type USART0_IRQHandler, %function
265USART0_IRQHandler:
266    ldr   r0,=USART0_DriverIRQHandler
267    bx    r0
268    .size USART0_IRQHandler, . - USART0_IRQHandler
269
270    .align 1
271    .thumb_func
272    .weak USART1_IRQHandler
273    .type USART1_IRQHandler, %function
274USART1_IRQHandler:
275    ldr   r0,=USART1_DriverIRQHandler
276    bx    r0
277    .size USART1_IRQHandler, . - USART1_IRQHandler
278
279    .align 1
280    .thumb_func
281    .weak USART2_IRQHandler
282    .type USART2_IRQHandler, %function
283USART2_IRQHandler:
284    ldr   r0,=USART2_DriverIRQHandler
285    bx    r0
286    .size USART2_IRQHandler, . - USART2_IRQHandler
287
288    .align 1
289    .thumb_func
290    .weak FTM0_IRQHandler
291    .type FTM0_IRQHandler, %function
292FTM0_IRQHandler:
293    ldr   r0,=FTM0_DriverIRQHandler
294    bx    r0
295    .size FTM0_IRQHandler, . - FTM0_IRQHandler
296
297    .align 1
298    .thumb_func
299    .weak FTM1_IRQHandler
300    .type FTM1_IRQHandler, %function
301FTM1_IRQHandler:
302    ldr   r0,=FTM1_DriverIRQHandler
303    bx    r0
304    .size FTM1_IRQHandler, . - FTM1_IRQHandler
305
306    .align 1
307    .thumb_func
308    .weak I2C0_IRQHandler
309    .type I2C0_IRQHandler, %function
310I2C0_IRQHandler:
311    ldr   r0,=I2C0_DriverIRQHandler
312    bx    r0
313    .size I2C0_IRQHandler, . - I2C0_IRQHandler
314
315    .align 1
316    .thumb_func
317    .weak Reserved25_IRQHandler
318    .type Reserved25_IRQHandler, %function
319Reserved25_IRQHandler:
320    ldr   r0,=Reserved25_DriverIRQHandler
321    bx    r0
322    .size Reserved25_IRQHandler, . - Reserved25_IRQHandler
323
324    .align 1
325    .thumb_func
326    .weak MRT0_IRQHandler
327    .type MRT0_IRQHandler, %function
328MRT0_IRQHandler:
329    ldr   r0,=MRT0_DriverIRQHandler
330    bx    r0
331    .size MRT0_IRQHandler, . - MRT0_IRQHandler
332
333    .align 1
334    .thumb_func
335    .weak ACMP_IRQHandler
336    .type ACMP_IRQHandler, %function
337ACMP_IRQHandler:
338    ldr   r0,=ACMP_DriverIRQHandler
339    bx    r0
340    .size ACMP_IRQHandler, . - ACMP_IRQHandler
341
342    .align 1
343    .thumb_func
344    .weak WDT_IRQHandler
345    .type WDT_IRQHandler, %function
346WDT_IRQHandler:
347    ldr   r0,=WDT_DriverIRQHandler
348    bx    r0
349    .size WDT_IRQHandler, . - WDT_IRQHandler
350
351    .align 1
352    .thumb_func
353    .weak BOD_IRQHandler
354    .type BOD_IRQHandler, %function
355BOD_IRQHandler:
356    ldr   r0,=BOD_DriverIRQHandler
357    bx    r0
358    .size BOD_IRQHandler, . - BOD_IRQHandler
359
360    .align 1
361    .thumb_func
362    .weak FLASH_IRQHandler
363    .type FLASH_IRQHandler, %function
364FLASH_IRQHandler:
365    ldr   r0,=FLASH_DriverIRQHandler
366    bx    r0
367    .size FLASH_IRQHandler, . - FLASH_IRQHandler
368
369    .align 1
370    .thumb_func
371    .weak WKT_IRQHandler
372    .type WKT_IRQHandler, %function
373WKT_IRQHandler:
374    ldr   r0,=WKT_DriverIRQHandler
375    bx    r0
376    .size WKT_IRQHandler, . - WKT_IRQHandler
377
378    .align 1
379    .thumb_func
380    .weak ADC0_SEQA_IRQHandler
381    .type ADC0_SEQA_IRQHandler, %function
382ADC0_SEQA_IRQHandler:
383    ldr   r0,=ADC0_SEQA_DriverIRQHandler
384    bx    r0
385    .size ADC0_SEQA_IRQHandler, . - ADC0_SEQA_IRQHandler
386
387    .align 1
388    .thumb_func
389    .weak ADC0_SEQB_IRQHandler
390    .type ADC0_SEQB_IRQHandler, %function
391ADC0_SEQB_IRQHandler:
392    ldr   r0,=ADC0_SEQB_DriverIRQHandler
393    bx    r0
394    .size ADC0_SEQB_IRQHandler, . - ADC0_SEQB_IRQHandler
395
396    .align 1
397    .thumb_func
398    .weak ADC0_THCMP_IRQHandler
399    .type ADC0_THCMP_IRQHandler, %function
400ADC0_THCMP_IRQHandler:
401    ldr   r0,=ADC0_THCMP_DriverIRQHandler
402    bx    r0
403    .size ADC0_THCMP_IRQHandler, . - ADC0_THCMP_IRQHandler
404
405    .align 1
406    .thumb_func
407    .weak ADC0_OVR_IRQHandler
408    .type ADC0_OVR_IRQHandler, %function
409ADC0_OVR_IRQHandler:
410    ldr   r0,=ADC0_OVR_DriverIRQHandler
411    bx    r0
412    .size ADC0_OVR_IRQHandler, . - ADC0_OVR_IRQHandler
413
414    .align 1
415    .thumb_func
416    .weak DMA0_IRQHandler
417    .type DMA0_IRQHandler, %function
418DMA0_IRQHandler:
419    ldr   r0,=DMA0_DriverIRQHandler
420    bx    r0
421    .size DMA0_IRQHandler, . - DMA0_IRQHandler
422
423    .align 1
424    .thumb_func
425    .weak I3C0_IRQHandler
426    .type I3C0_IRQHandler, %function
427I3C0_IRQHandler:
428    ldr   r0,=I3C0_DriverIRQHandler
429    bx    r0
430    .size I3C0_IRQHandler, . - I3C0_IRQHandler
431
432    .align 1
433    .thumb_func
434    .weak GPIO_HS_IRQ0_IRQHandler
435    .type GPIO_HS_IRQ0_IRQHandler, %function
436GPIO_HS_IRQ0_IRQHandler:
437    ldr   r0,=GPIO_HS_IRQ0_DriverIRQHandler
438    bx    r0
439    .size GPIO_HS_IRQ0_IRQHandler, . - GPIO_HS_IRQ0_IRQHandler
440
441    .align 1
442    .thumb_func
443    .weak GPIO_HS_IRQ1_IRQHandler
444    .type GPIO_HS_IRQ1_IRQHandler, %function
445GPIO_HS_IRQ1_IRQHandler:
446    ldr   r0,=GPIO_HS_IRQ1_DriverIRQHandler
447    bx    r0
448    .size GPIO_HS_IRQ1_IRQHandler, . - GPIO_HS_IRQ1_IRQHandler
449
450    .align 1
451    .thumb_func
452    .weak PIN_INT0_IRQHandler
453    .type PIN_INT0_IRQHandler, %function
454PIN_INT0_IRQHandler:
455    ldr   r0,=PIN_INT0_DriverIRQHandler
456    bx    r0
457    .size PIN_INT0_IRQHandler, . - PIN_INT0_IRQHandler
458
459    .align 1
460    .thumb_func
461    .weak PIN_INT1_IRQHandler
462    .type PIN_INT1_IRQHandler, %function
463PIN_INT1_IRQHandler:
464    ldr   r0,=PIN_INT1_DriverIRQHandler
465    bx    r0
466    .size PIN_INT1_IRQHandler, . - PIN_INT1_IRQHandler
467
468    .align 1
469    .thumb_func
470    .weak PIN_INT2_IRQHandler
471    .type PIN_INT2_IRQHandler, %function
472PIN_INT2_IRQHandler:
473    ldr   r0,=PIN_INT2_DriverIRQHandler
474    bx    r0
475    .size PIN_INT2_IRQHandler, . - PIN_INT2_IRQHandler
476
477    .align 1
478    .thumb_func
479    .weak PIN_INT3_IRQHandler
480    .type PIN_INT3_IRQHandler, %function
481PIN_INT3_IRQHandler:
482    ldr   r0,=PIN_INT3_DriverIRQHandler
483    bx    r0
484    .size PIN_INT3_IRQHandler, . - PIN_INT3_IRQHandler
485
486    .align 1
487    .thumb_func
488    .weak PIN_INT4_IRQHandler
489    .type PIN_INT4_IRQHandler, %function
490PIN_INT4_IRQHandler:
491    ldr   r0,=PIN_INT4_DriverIRQHandler
492    bx    r0
493    .size PIN_INT4_IRQHandler, . - PIN_INT4_IRQHandler
494
495    .align 1
496    .thumb_func
497    .weak PIN_INT5_IRQHandler
498    .type PIN_INT5_IRQHandler, %function
499PIN_INT5_IRQHandler:
500    ldr   r0,=PIN_INT5_DriverIRQHandler
501    bx    r0
502    .size PIN_INT5_IRQHandler, . - PIN_INT5_IRQHandler
503
504    .align 1
505    .thumb_func
506    .weak PIN_INT6_IRQHandler
507    .type PIN_INT6_IRQHandler, %function
508PIN_INT6_IRQHandler:
509    ldr   r0,=PIN_INT6_DriverIRQHandler
510    bx    r0
511    .size PIN_INT6_IRQHandler, . - PIN_INT6_IRQHandler
512
513    .align 1
514    .thumb_func
515    .weak PIN_INT7_IRQHandler
516    .type PIN_INT7_IRQHandler, %function
517PIN_INT7_IRQHandler:
518    ldr   r0,=PIN_INT7_DriverIRQHandler
519    bx    r0
520    .size PIN_INT7_IRQHandler, . - PIN_INT7_IRQHandler
521
522
523/*    Macro to define default handlers. Default handler
524 *    will be weak symbol and just dead loops. They can be
525 *    overwritten by other handlers */
526    .macro def_irq_handler  handler_name
527    .weak \handler_name
528    .set  \handler_name, DefaultISR
529    .endm
530/* Exception Handlers */
531    def_irq_handler    SPI0_DriverIRQHandler
532    def_irq_handler    SPI1_DriverIRQHandler
533    def_irq_handler    Reserved18_DriverIRQHandler
534    def_irq_handler    USART0_DriverIRQHandler
535    def_irq_handler    USART1_DriverIRQHandler
536    def_irq_handler    USART2_DriverIRQHandler
537    def_irq_handler    FTM0_DriverIRQHandler
538    def_irq_handler    FTM1_DriverIRQHandler
539    def_irq_handler    I2C0_DriverIRQHandler
540    def_irq_handler    Reserved25_DriverIRQHandler
541    def_irq_handler    MRT0_DriverIRQHandler
542    def_irq_handler    ACMP_DriverIRQHandler
543    def_irq_handler    WDT_DriverIRQHandler
544    def_irq_handler    BOD_DriverIRQHandler
545    def_irq_handler    FLASH_DriverIRQHandler
546    def_irq_handler    WKT_DriverIRQHandler
547    def_irq_handler    ADC0_SEQA_DriverIRQHandler
548    def_irq_handler    ADC0_SEQB_DriverIRQHandler
549    def_irq_handler    ADC0_THCMP_DriverIRQHandler
550    def_irq_handler    ADC0_OVR_DriverIRQHandler
551    def_irq_handler    DMA0_DriverIRQHandler
552    def_irq_handler    I3C0_DriverIRQHandler
553    def_irq_handler    GPIO_HS_IRQ0_DriverIRQHandler
554    def_irq_handler    GPIO_HS_IRQ1_DriverIRQHandler
555    def_irq_handler    PIN_INT0_DriverIRQHandler
556    def_irq_handler    PIN_INT1_DriverIRQHandler
557    def_irq_handler    PIN_INT2_DriverIRQHandler
558    def_irq_handler    PIN_INT3_DriverIRQHandler
559    def_irq_handler    PIN_INT4_DriverIRQHandler
560    def_irq_handler    PIN_INT5_DriverIRQHandler
561    def_irq_handler    PIN_INT6_DriverIRQHandler
562    def_irq_handler    PIN_INT7_DriverIRQHandler
563
564    .end
565