aboutsummaryrefslogtreecommitdiff
path: root/ports/stm32/stm32_it.c
blob: 1a2227217bbc82c8e5525bf2af7e161cb56455fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * Original template from ST Cube library.  See below for header.
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 Damien P. George
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/**
  ******************************************************************************
  * @file    Templates/Src/stm32f4xx_it.c
  * @author  MCD Application Team
  * @version V1.0.1
  * @date    26-February-2014
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

#include <stdio.h>

#include "py/obj.h"
#include "py/mphal.h"
#include "stm32_it.h"
#include "pendsv.h"
#include "irq.h"
#include "powerctrl.h"
#include "pybthread.h"
#include "gccollect.h"
#include "extint.h"
#include "timer.h"
#include "uart.h"
#include "storage.h"
#include "dma.h"
#include "i2c.h"
#include "usb.h"

extern void __fatal_error(const char*);
#if defined(MICROPY_HW_USB_FS)
extern PCD_HandleTypeDef pcd_fs_handle;
#endif
#if defined(MICROPY_HW_USB_HS)
extern PCD_HandleTypeDef pcd_hs_handle;
#endif

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

// Set the following to 1 to get some more information on the Hard Fault
// More information about decoding the fault registers can be found here:
// http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0646a/Cihdjcfc.html

STATIC char *fmt_hex(uint32_t val, char *buf) {
    const char *hexDig = "0123456789abcdef";

    buf[0] = hexDig[(val >> 28) & 0x0f];
    buf[1] = hexDig[(val >> 24) & 0x0f];
    buf[2] = hexDig[(val >> 20) & 0x0f];
    buf[3] = hexDig[(val >> 16) & 0x0f];
    buf[4] = hexDig[(val >> 12) & 0x0f];
    buf[5] = hexDig[(val >>  8) & 0x0f];
    buf[6] = hexDig[(val >>  4) & 0x0f];
    buf[7] = hexDig[(val >>  0) & 0x0f];
    buf[8] = '\0';

    return buf;
}

STATIC void print_reg(const char *label, uint32_t val) {
    char hexStr[9];

    mp_hal_stdout_tx_str(label);
    mp_hal_stdout_tx_str(fmt_hex(val, hexStr));
    mp_hal_stdout_tx_str("\r\n");
}

STATIC void print_hex_hex(const char *label, uint32_t val1, uint32_t val2) {
    char hex_str[9];
    mp_hal_stdout_tx_str(label);
    mp_hal_stdout_tx_str(fmt_hex(val1, hex_str));
    mp_hal_stdout_tx_str("  ");
    mp_hal_stdout_tx_str(fmt_hex(val2, hex_str));
    mp_hal_stdout_tx_str("\r\n");
}

// The ARMv7M Architecture manual (section B.1.5.6) says that upon entry
// to an exception, that the registers will be in the following order on the
// // stack: R0, R1, R2, R3, R12, LR, PC, XPSR

typedef struct {
    uint32_t    r0, r1, r2, r3, r12, lr, pc, xpsr;
} ExceptionRegisters_t;

int pyb_hard_fault_debug = 0;

void HardFault_C_Handler(ExceptionRegisters_t *regs) {
    if (!pyb_hard_fault_debug) {
        powerctrl_mcu_reset();
    }

    #if MICROPY_HW_ENABLE_USB
    // We need to disable the USB so it doesn't try to write data out on
    // the VCP and then block indefinitely waiting for the buffer to drain.
    pyb_usb_flags = 0;
    #endif

    mp_hal_stdout_tx_str("HardFault\r\n");

    print_reg("R0    ", regs->r0);
    print_reg("R1    ", regs->r1);
    print_reg("R2    ", regs->r2);
    print_reg("R3    ", regs->r3);
    print_reg("R12   ", regs->r12);
    print_reg("SP    ", (uint32_t)regs);
    print_reg("LR    ", regs->lr);
    print_reg("PC    ", regs->pc);
    print_reg("XPSR  ", regs->xpsr);

    #if __CORTEX_M >= 3
    uint32_t cfsr = SCB->CFSR;

    print_reg("HFSR  ", SCB->HFSR);
    print_reg("CFSR  ", cfsr);
    if (cfsr & 0x80) {
        print_reg("MMFAR ", SCB->MMFAR);
    }
    if (cfsr & 0x8000) {
        print_reg("BFAR  ", SCB->BFAR);
    }
    #endif

    if ((void*)&_ram_start <= (void*)regs && (void*)regs < (void*)&_ram_end) {
        mp_hal_stdout_tx_str("Stack:\r\n");
        uint32_t *stack_top = &_estack;
        if ((void*)regs < (void*)&_sstack) {
            // stack not in static stack area so limit the amount we print
            stack_top = (uint32_t*)regs + 32;
        }
        for (uint32_t *sp = (uint32_t*)regs; sp < stack_top; ++sp) {
            print_hex_hex("  ", (uint32_t)sp, *sp);
        }
    }

    /* Go to infinite loop when Hard Fault exception occurs */
    while (1) {
        __fatal_error("HardFault");
    }
}

// Naked functions have no compiler generated gunk, so are the best thing to
// use for asm functions.
__attribute__((naked))
void HardFault_Handler(void) {

    // From the ARMv7M Architecture Reference Manual, section B.1.5.6
    // on entry to the Exception, the LR register contains, amongst other
    // things, the value of CONTROL.SPSEL. This can be found in bit 3.
    //
    // If CONTROL.SPSEL is 0, then the exception was stacked up using the
    // main stack pointer (aka MSP). If CONTROL.SPSEL is 1, then the exception
    // was stacked up using the process stack pointer (aka PSP).

    #if __CORTEX_M == 0
    __asm volatile(
    " mov r0, lr    \n"
    " lsr r0, r0, #3 \n"        // Shift Bit 3 into carry to see which stack pointer we should use.
    " mrs r0, msp   \n"         // Make R0 point to main stack pointer
    " bcc .use_msp  \n"         // Keep MSP in R0 if SPSEL (carry) is 0
    " mrs r0, psp   \n"         // Make R0 point to process stack pointer
    " .use_msp:     \n"
    " b HardFault_C_Handler \n" // Off to C land
    );
    #else
    __asm volatile(
    " tst lr, #4    \n"         // Test Bit 3 to see which stack pointer we should use.
    " ite eq        \n"         // Tell the assembler that the nest 2 instructions are if-then-else
    " mrseq r0, msp \n"         // Make R0 point to main stack pointer
    " mrsne r0, psp \n"         // Make R0 point to process stack pointer
    " b HardFault_C_Handler \n" // Off to C land
    );
    #endif
}

/**
  * @brief   This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void) {
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void) {
    /* Go to infinite loop when Memory Manage exception occurs */
    while (1) {
        __fatal_error("MemManage");
    }
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void) {
    /* Go to infinite loop when Bus Fault exception occurs */
    while (1) {
        __fatal_error("BusFault");
    }
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void) {
    /* Go to infinite loop when Usage Fault exception occurs */
    while (1) {
        __fatal_error("UsageFault");
    }
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void) {
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void) {
}

/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f4xx.s).                                               */
/******************************************************************************/

#if defined(STM32L0) || defined(STM32L432xx)

#if MICROPY_HW_USB_FS
void USB_IRQHandler(void) {
    HAL_PCD_IRQHandler(&pcd_fs_handle);
}
#endif

#elif defined(STM32WB)

#if MICROPY_HW_USB_FS
void USB_LP_IRQHandler(void) {
    HAL_PCD_IRQHandler(&pcd_fs_handle);
}
#endif

#else

/**
  * @brief  This function handles USB-On-The-Go FS global interrupt request.
  * @param  None
  * @retval None
  */
#if MICROPY_HW_USB_FS
void OTG_FS_IRQHandler(void) {
    IRQ_ENTER(OTG_FS_IRQn);
    HAL_PCD_IRQHandler(&pcd_fs_handle);
    IRQ_EXIT(OTG_FS_IRQn);
}
#endif
#if MICROPY_HW_USB_HS
void OTG_HS_IRQHandler(void) {
    IRQ_ENTER(OTG_HS_IRQn);
    HAL_PCD_IRQHandler(&pcd_hs_handle);
    IRQ_EXIT(OTG_HS_IRQn);
}
#endif

#if MICROPY_HW_USB_FS || MICROPY_HW_USB_HS
/**
  * @brief  This function handles USB OTG Common FS/HS Wakeup functions.
  * @param  *pcd_handle for FS or HS
  * @retval None
  */
STATIC void OTG_CMD_WKUP_Handler(PCD_HandleTypeDef *pcd_handle) {

  if (pcd_handle->Init.low_power_enable) {
    /* Reset SLEEPDEEP bit of Cortex System Control Register */
    SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));

    /* Configures system clock after wake-up from STOP: enable HSE/HSI, PLL and select
    PLL as system clock source (HSE/HSI and PLL are disabled in STOP mode) */

    __HAL_RCC_HSE_CONFIG(MICROPY_HW_RCC_HSE_STATE);
    #if MICROPY_HW_CLK_USE_HSI
    __HAL_RCC_HSI_ENABLE();
    #endif

    /* Wait till HSE/HSI is ready */
    while(__HAL_RCC_GET_FLAG(MICROPY_HW_RCC_FLAG_HSxRDY) == RESET)
    {}

    /* Enable the main PLL. */
    __HAL_RCC_PLL_ENABLE();

    /* Wait till PLL is ready */
    while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
    {}

    /* Select PLL as SYSCLK */
    MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_SYSCLKSOURCE_PLLCLK);

    #if defined(STM32H7)
    while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL1)
    {}
    #else
    while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL)
    {}
    #endif

    /* ungate PHY clock */
     __HAL_PCD_UNGATE_PHYCLOCK(pcd_handle);
  }

}
#endif

#if MICROPY_HW_USB_FS
/**
  * @brief  This function handles USB OTG FS Wakeup IRQ Handler.
  * @param  None
  * @retval None
  */
void OTG_FS_WKUP_IRQHandler(void) {
    IRQ_ENTER(OTG_FS_WKUP_IRQn);

  OTG_CMD_WKUP_Handler(&pcd_fs_handle);

  #if !defined(STM32H7)
  /* Clear EXTI pending Bit*/
  __HAL_USB_FS_EXTI_CLEAR_FLAG();
  #endif

    IRQ_EXIT(OTG_FS_WKUP_IRQn);
}
#endif

#if MICROPY_HW_USB_HS
/**
  * @brief  This function handles USB OTG HS Wakeup IRQ Handler.
  * @param  None
  * @retval None
  */
void OTG_HS_WKUP_IRQHandler(void) {
    IRQ_ENTER(OTG_HS_WKUP_IRQn);

  OTG_CMD_WKUP_Handler(&pcd_hs_handle);

  #if !defined(STM32H7)
  /* Clear EXTI pending Bit*/
  __HAL_USB_HS_EXTI_CLEAR_FLAG();
  #endif

    IRQ_EXIT(OTG_HS_WKUP_IRQn);
}
#endif

#endif // !defined(STM32L0)

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/

/**
  * @brief  These functions handle the EXTI interrupt requests.
  * @param  None
  * @retval None
  */
void EXTI0_IRQHandler(void) {
    IRQ_ENTER(EXTI0_IRQn);
    Handle_EXTI_Irq(0);
    IRQ_EXIT(EXTI0_IRQn);
}

void EXTI1_IRQHandler(void) {
    IRQ_ENTER(EXTI1_IRQn);
    Handle_EXTI_Irq(1);
    IRQ_EXIT(EXTI1_IRQn);
}

void EXTI2_IRQHandler(void) {
    IRQ_ENTER(EXTI2_IRQn);
    Handle_EXTI_Irq(2);
    IRQ_EXIT(EXTI2_IRQn);
}

void EXTI3_IRQHandler(void) {
    IRQ_ENTER(EXTI3_IRQn);
    Handle_EXTI_Irq(3);
    IRQ_EXIT(EXTI3_IRQn);
}

void EXTI4_IRQHandler(void) {
    IRQ_ENTER(EXTI4_IRQn);
    Handle_EXTI_Irq(4);
    IRQ_EXIT(EXTI4_IRQn);
}

void EXTI9_5_IRQHandler(void) {
    IRQ_ENTER(EXTI9_5_IRQn);
    Handle_EXTI_Irq(5);
    Handle_EXTI_Irq(6);
    Handle_EXTI_Irq(7);
    Handle_EXTI_Irq(8);
    Handle_EXTI_Irq(9);
    IRQ_EXIT(EXTI9_5_IRQn);
}

void EXTI15_10_IRQHandler(void) {
    IRQ_ENTER(EXTI15_10_IRQn);
    Handle_EXTI_Irq(10);
    Handle_EXTI_Irq(11);
    Handle_EXTI_Irq(12);
    Handle_EXTI_Irq(13);
    Handle_EXTI_Irq(14);
    Handle_EXTI_Irq(15);
    IRQ_EXIT(EXTI15_10_IRQn);
}

void PVD_IRQHandler(void) {
    IRQ_ENTER(PVD_IRQn);
    Handle_EXTI_Irq(EXTI_PVD_OUTPUT);
    IRQ_EXIT(PVD_IRQn);
}

#if defined(STM32L4)
void PVD_PVM_IRQHandler(void) {
    IRQ_ENTER(PVD_PVM_IRQn);
    Handle_EXTI_Irq(EXTI_PVD_OUTPUT);
    IRQ_EXIT(PVD_PVM_IRQn);
}
#endif

void RTC_Alarm_IRQHandler(void) {
    IRQ_ENTER(RTC_Alarm_IRQn);
    Handle_EXTI_Irq(EXTI_RTC_ALARM);
    IRQ_EXIT(RTC_Alarm_IRQn);
}

#if defined(ETH)    // The 407 has ETH, the 405 doesn't
void ETH_WKUP_IRQHandler(void)  {
    IRQ_ENTER(ETH_WKUP_IRQn);
    Handle_EXTI_Irq(EXTI_ETH_WAKEUP);
    IRQ_EXIT(ETH_WKUP_IRQn);
}
#endif

void TAMP_STAMP_IRQHandler(void) {
    IRQ_ENTER(TAMP_STAMP_IRQn);
    Handle_EXTI_Irq(EXTI_RTC_TIMESTAMP);
    IRQ_EXIT(TAMP_STAMP_IRQn);
}

void RTC_WKUP_IRQHandler(void) {
    IRQ_ENTER(RTC_WKUP_IRQn);
    RTC->ISR &= ~RTC_ISR_WUTF; // clear wakeup interrupt flag
    Handle_EXTI_Irq(EXTI_RTC_WAKEUP); // clear EXTI flag and execute optional callback
    IRQ_EXIT(RTC_WKUP_IRQn);
}

#if defined(STM32F0) || defined(STM32L0)

void RTC_IRQHandler(void) {
    IRQ_ENTER(RTC_IRQn);
    if (RTC->ISR & RTC_ISR_WUTF) {
        RTC->ISR &= ~RTC_ISR_WUTF; // clear wakeup interrupt flag
        Handle_EXTI_Irq(EXTI_RTC_WAKEUP); // clear EXTI flag and execute optional callback
    }
    if (RTC->ISR & RTC_ISR_ALRAF) {
        RTC->ISR &= ~RTC_ISR_ALRAF; // clear Alarm A flag
        Handle_EXTI_Irq(EXTI_RTC_ALARM); // clear EXTI flag and execute optional callback
    }
    if (RTC->ISR & RTC_ISR_TSF) {
        RTC->ISR &= ~RTC_ISR_TSF; // clear timestamp flag
        Handle_EXTI_Irq(EXTI_RTC_TIMESTAMP); // clear EXTI flag and execute optional callback
    }
    IRQ_EXIT(RTC_IRQn);
}

void EXTI0_1_IRQHandler(void) {
    IRQ_ENTER(EXTI0_1_IRQn);
    Handle_EXTI_Irq(0);
    Handle_EXTI_Irq(1);
    IRQ_EXIT(EXTI0_1_IRQn);
}

void EXTI2_3_IRQHandler(void) {
    IRQ_ENTER(EXTI2_3_IRQn);
    Handle_EXTI_Irq(2);
    Handle_EXTI_Irq(3);
    IRQ_EXIT(EXTI2_3_IRQn);
}

void EXTI4_15_IRQHandler(void) {
    IRQ_ENTER(EXTI4_15_IRQn);
    for (int i = 4; i <= 15; ++i) {
        Handle_EXTI_Irq(i);
    }
    IRQ_EXIT(EXTI4_15_IRQn);
}

void TIM1_BRK_UP_TRG_COM_IRQHandler(void) {
    IRQ_ENTER(TIM1_BRK_UP_TRG_COM_IRQn);
    timer_irq_handler(1);
    IRQ_EXIT(TIM1_BRK_UP_TRG_COM_IRQn);
}

#endif

void TIM1_BRK_TIM9_IRQHandler(void) {
    IRQ_ENTER(TIM1_BRK_TIM9_IRQn);
    timer_irq_handler(9);
    IRQ_EXIT(TIM1_BRK_TIM9_IRQn);
}

#if defined(STM32L4)
void TIM1_BRK_TIM15_IRQHandler(void) {
    IRQ_ENTER(TIM1_BRK_TIM15_IRQn);
    timer_irq_handler(15);
    IRQ_EXIT(TIM1_BRK_TIM15_IRQn);
}
#endif

void TIM1_UP_TIM10_IRQHandler(void) {
    IRQ_ENTER(TIM1_UP_TIM10_IRQn);
    timer_irq_handler(1);
    timer_irq_handler(10);
    IRQ_EXIT(TIM1_UP_TIM10_IRQn);
}

#if defined(STM32L4)
void TIM1_UP_TIM16_IRQHandler(void) {
    IRQ_ENTER(TIM1_UP_TIM16_IRQn);
    timer_irq_handler(1);
    timer_irq_handler(16);
    IRQ_EXIT(TIM1_UP_TIM16_IRQn);
}
#endif

#if defined(STM32H7)
void TIM1_UP_IRQHandler(void) {
    IRQ_ENTER(TIM1_UP_IRQn);
    timer_irq_handler(1);
    IRQ_EXIT(TIM1_UP_IRQn);
}
#endif

void TIM1_TRG_COM_TIM11_IRQHandler(void) {
    IRQ_ENTER(TIM1_TRG_COM_TIM11_IRQn);
    timer_irq_handler(11);
    IRQ_EXIT(TIM1_TRG_COM_TIM11_IRQn);
}

#if defined(STM32L4)
void TIM1_TRG_COM_TIM17_IRQHandler(void) {
    IRQ_ENTER(TIM1_TRG_COM_TIM17_IRQn);
    timer_irq_handler(17);
    IRQ_EXIT(TIM1_TRG_COM_TIM17_IRQn);
}
#endif

void TIM1_CC_IRQHandler(void) {
    IRQ_ENTER(TIM1_CC_IRQn);
    timer_irq_handler(1);
    IRQ_EXIT(TIM1_CC_IRQn);
}

void TIM2_IRQHandler(void) {
    IRQ_ENTER(TIM2_IRQn);
    timer_irq_handler(2);
    IRQ_EXIT(TIM2_IRQn);
}

void TIM3_IRQHandler(void) {
    IRQ_ENTER(TIM3_IRQn);
    timer_irq_handler(3);
    IRQ_EXIT(TIM3_IRQn);
}

void TIM4_IRQHandler(void) {
    IRQ_ENTER(TIM4_IRQn);
    timer_irq_handler(4);
    IRQ_EXIT(TIM4_IRQn);
}

void TIM5_IRQHandler(void) {
    IRQ_ENTER(TIM5_IRQn);
    timer_irq_handler(5);
    HAL_TIM_IRQHandler(&TIM5_Handle);
    IRQ_EXIT(TIM5_IRQn);
}

#if defined(TIM6) // STM32F401 doesn't have TIM6
void TIM6_DAC_IRQHandler(void) {
    IRQ_ENTER(TIM6_DAC_IRQn);
    timer_irq_handler(6);
    IRQ_EXIT(TIM6_DAC_IRQn);
}
#endif

#if defined(TIM7) // STM32F401 doesn't have TIM7
void TIM7_IRQHandler(void) {
    IRQ_ENTER(TIM7_IRQn);
    timer_irq_handler(7);
    IRQ_EXIT(TIM7_IRQn);
}
#endif

#if defined(TIM8) // STM32F401 doesn't have TIM8
void TIM8_BRK_TIM12_IRQHandler(void) {
    IRQ_ENTER(TIM8_BRK_TIM12_IRQn);
    timer_irq_handler(12);
    IRQ_EXIT(TIM8_BRK_TIM12_IRQn);
}

void TIM8_UP_TIM13_IRQHandler(void) {
    IRQ_ENTER(TIM8_UP_TIM13_IRQn);
    timer_irq_handler(8);
    timer_irq_handler(13);
    IRQ_EXIT(TIM8_UP_TIM13_IRQn);
}

#if defined(STM32L4)
void TIM8_UP_IRQHandler(void) {
    IRQ_ENTER(TIM8_UP_IRQn);
    timer_irq_handler(8);
    IRQ_EXIT(TIM8_UP_IRQn);
}
#endif

void TIM8_CC_IRQHandler(void) {
    IRQ_ENTER(TIM8_CC_IRQn);
    timer_irq_handler(8);
    IRQ_EXIT(TIM8_CC_IRQn);
}

void TIM8_TRG_COM_TIM14_IRQHandler(void) {
    IRQ_ENTER(TIM8_TRG_COM_TIM14_IRQn);
    timer_irq_handler(14);
    IRQ_EXIT(TIM8_TRG_COM_TIM14_IRQn);
}
#endif

#if defined(STM32H7)
void TIM15_IRQHandler(void) {
    IRQ_ENTER(TIM15_IRQn);
    timer_irq_handler(15);
    IRQ_EXIT(TIM15_IRQn);
}

void TIM16_IRQHandler(void) {
    IRQ_ENTER(TIM16_IRQn);
    timer_irq_handler(16);
    IRQ_EXIT(TIM16_IRQn);
}

void TIM17_IRQHandler(void) {
    IRQ_ENTER(TIM17_IRQn);
    timer_irq_handler(17);
    IRQ_EXIT(TIM17_IRQn);
}
#endif

// UART/USART IRQ handlers
void USART1_IRQHandler(void) {
    IRQ_ENTER(USART1_IRQn);
    uart_irq_handler(1);
    IRQ_EXIT(USART1_IRQn);
}

void USART2_IRQHandler(void) {
    IRQ_ENTER(USART2_IRQn);
    uart_irq_handler(2);
    IRQ_EXIT(USART2_IRQn);
}

#if defined(STM32F0)

void USART3_8_IRQHandler(void) {
    IRQ_ENTER(USART3_8_IRQn);
    uart_irq_handler(3);
    uart_irq_handler(4);
    uart_irq_handler(5);
    uart_irq_handler(6);
    uart_irq_handler(7);
    uart_irq_handler(8);
    IRQ_EXIT(USART3_8_IRQn);
}

#elif defined(STM32L0)

void USART4_5_IRQHandler(void) {
    IRQ_ENTER(USART4_5_IRQn);
    uart_irq_handler(4);
    uart_irq_handler(5);
    IRQ_EXIT(USART4_5_IRQn);
}

#else

void USART3_IRQHandler(void) {
    IRQ_ENTER(USART3_IRQn);
    uart_irq_handler(3);
    IRQ_EXIT(USART3_IRQn);
}

void UART4_IRQHandler(void) {
    IRQ_ENTER(UART4_IRQn);
    uart_irq_handler(4);
    IRQ_EXIT(UART4_IRQn);
}

void UART5_IRQHandler(void) {
    IRQ_ENTER(UART5_IRQn);
    uart_irq_handler(5);
    IRQ_EXIT(UART5_IRQn);
}

void USART6_IRQHandler(void) {
    IRQ_ENTER(USART6_IRQn);
    uart_irq_handler(6);
    IRQ_EXIT(USART6_IRQn);
}

#if defined(UART7)
void UART7_IRQHandler(void) {
    IRQ_ENTER(UART7_IRQn);
    uart_irq_handler(7);
    IRQ_EXIT(UART7_IRQn);
}
#endif

#if defined(UART8)
void UART8_IRQHandler(void) {
    IRQ_ENTER(UART8_IRQn);
    uart_irq_handler(8);
    IRQ_EXIT(UART8_IRQn);
}
#endif

#if defined(UART9)
void UART9_IRQHandler(void) {
    IRQ_ENTER(UART9_IRQn);
    uart_irq_handler(9);
    IRQ_EXIT(UART9_IRQn);
}
#endif

#if defined(UART10)
void UART10_IRQHandler(void) {
    IRQ_ENTER(UART10_IRQn);
    uart_irq_handler(10);
    IRQ_EXIT(UART10_IRQn);
}
#endif

#endif

#if MICROPY_PY_PYB_LEGACY

#if defined(MICROPY_HW_I2C1_SCL)
void I2C1_EV_IRQHandler(void) {
    IRQ_ENTER(I2C1_EV_IRQn);
    i2c_ev_irq_handler(1);
    IRQ_EXIT(I2C1_EV_IRQn);
}

void I2C1_ER_IRQHandler(void) {
    IRQ_ENTER(I2C1_ER_IRQn);
    i2c_er_irq_handler(1);
    IRQ_EXIT(I2C1_ER_IRQn);
}
#endif // defined(MICROPY_HW_I2C1_SCL)

#if defined(MICROPY_HW_I2C2_SCL)
void I2C2_EV_IRQHandler(void) {
    IRQ_ENTER(I2C2_EV_IRQn);
    i2c_ev_irq_handler(2);
    IRQ_EXIT(I2C2_EV_IRQn);
}

void I2C2_ER_IRQHandler(void) {
    IRQ_ENTER(I2C2_ER_IRQn);
    i2c_er_irq_handler(2);
    IRQ_EXIT(I2C2_ER_IRQn);
}
#endif // defined(MICROPY_HW_I2C2_SCL)

#if defined(MICROPY_HW_I2C3_SCL)
void I2C3_EV_IRQHandler(void) {
    IRQ_ENTER(I2C3_EV_IRQn);
    i2c_ev_irq_handler(3);
    IRQ_EXIT(I2C3_EV_IRQn);
}

void I2C3_ER_IRQHandler(void) {
    IRQ_ENTER(I2C3_ER_IRQn);
    i2c_er_irq_handler(3);
    IRQ_EXIT(I2C3_ER_IRQn);
}
#endif // defined(MICROPY_HW_I2C3_SCL)

#if defined(MICROPY_HW_I2C4_SCL)
void I2C4_EV_IRQHandler(void) {
    IRQ_ENTER(I2C4_EV_IRQn);
    i2c_ev_irq_handler(4);
    IRQ_EXIT(I2C4_EV_IRQn);
}

void I2C4_ER_IRQHandler(void) {
    IRQ_ENTER(I2C4_ER_IRQn);
    i2c_er_irq_handler(4);
    IRQ_EXIT(I2C4_ER_IRQn);
}
#endif // defined(MICROPY_HW_I2C4_SCL)

#endif // MICROPY_PY_PYB_LEGACY