/* * Copyright (c) 2019, Nuvoton Technology Corporation * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "M251.h" /* Suppress warning messages */ #if defined(__CC_ARM) // Suppress warning message: extended constant initializer used #pragma diag_suppress 1296 #elif defined(__ICCARM__) #elif defined(__GNUC__) #endif /* Macro Definitions */ #if defined(__CC_ARM) #define WEAK __attribute__ ((weak)) #define ALIAS(f) __attribute__ ((weak, alias(#f))) #define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \ void FUN(void) __attribute__ ((weak, alias(#FUN_ALIAS))); #elif defined(__ICCARM__) //#define STRINGIFY(x) #x //#define _STRINGIFY(x) STRINGIFY(x) #define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \ void FUN(void); \ _Pragma(_STRINGIFY(_WEAK_ALIAS_FUNC(FUN, FUN_ALIAS))) #define _WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) weak __WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) #define __WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) FUN##=##FUN_ALIAS #elif defined(__GNUC__) #define WEAK __attribute__ ((weak)) #define ALIAS(f) __attribute__ ((weak, alias(#f))) #define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \ void FUN(void) __attribute__ ((weak, alias(#FUN_ALIAS))); #endif /* Initialize segments */ #if defined(__ARMCC_VERSION) extern uint32_t Image$$ARM_LIB_STACK$$ZI$$Limit; extern void __main(void); #elif defined(__ICCARM__) void __iar_program_start(void); #elif defined(__GNUC__) extern uint32_t __StackTop; extern uint32_t __copy_table_start__; extern uint32_t __copy_table_end__; extern uint32_t __zero_table_start__; extern uint32_t __zero_table_end__; #if defined(TOOLCHAIN_GCC_ARM) extern void _start(void); #else #error("For GCC toolchain, only support GNU ARM Embedded") #endif #endif /* Default empty handler */ void Default_Handler(void); /* Reset handler */ void Reset_Handler(void); /* Cortex-M23 core handlers */ WEAK_ALIAS_FUNC(NMI_Handler, Default_Handler) // -14: Non Maskable Interrupt WEAK_ALIAS_FUNC(HardFault_Handler, Default_Handler) // -13: Cortex-M23 Hard Fault Interrupt WEAK_ALIAS_FUNC(SVC_Handler, Default_Handler) // -5: Cortex-M23 SV Call Interrupt WEAK_ALIAS_FUNC(PendSV_Handler, Default_Handler) // -2: Cortex-M23 Pend SV Interrupt WEAK_ALIAS_FUNC(SysTick_Handler, Default_Handler) // -1: Cortex-M23 System Tick Interrupt /* Peripherals handlers */ WEAK_ALIAS_FUNC(BOD_IRQHandler, Default_Handler) // 0: Brown-Out Low Voltage Detected Interrupt WEAK_ALIAS_FUNC(IRCTRIM_IRQHandler, Default_Handler) // 1: Watch Dog Timer Interrupt WEAK_ALIAS_FUNC(PWRWU_IRQHandler, Default_Handler) // 2: EINT0, EINT2 and EINT4 Interrupt // 3: Reserved WEAK_ALIAS_FUNC(CLKFAIL_IRQHandler, Default_Handler) // 4: Clock fail dector Interrupt // 5: Reserved WEAK_ALIAS_FUNC(RTC_IRQHandler, Default_Handler) // 6: Real Time Clock Interrupt WEAK_ALIAS_FUNC(TAMPER_IRQHandler, Default_Handler) // 7: Tamper detection Interrupt WEAK_ALIAS_FUNC(WDT_IRQHandler, Default_Handler) // 8: Watch Dog Timer Interrupt WEAK_ALIAS_FUNC(WWDT_IRQHandler, Default_Handler) // 9: Window Watch Dog Timer Interrupt WEAK_ALIAS_FUNC(EINT0_IRQHandler, Default_Handler) // 10: External Input 0 Interrupt WEAK_ALIAS_FUNC(EINT1_IRQHandler, Default_Handler) // 11: External Input 1 Interrupt WEAK_ALIAS_FUNC(EINT2_IRQHandler, Default_Handler) // 12: External Input 2 Interrupt WEAK_ALIAS_FUNC(EINT3_IRQHandler, Default_Handler) // 13: External Input 3 Interrupt WEAK_ALIAS_FUNC(EINT4_IRQHandler, Default_Handler) // 14: External Input 4 Interrupt WEAK_ALIAS_FUNC(EINT5_IRQHandler, Default_Handler) // 15: External Input 5 Interrupt WEAK_ALIAS_FUNC(GPA_IRQHandler, Default_Handler) // 16: GPIO PORT A Interrupt WEAK_ALIAS_FUNC(GPB_IRQHandler, Default_Handler) // 17: GPIO PORT B Interrupt WEAK_ALIAS_FUNC(GPC_IRQHandler, Default_Handler) // 18: GPIO PORT C Interrupt WEAK_ALIAS_FUNC(GPD_IRQHandler, Default_Handler) // 19: GPIO PORT D Interrupt WEAK_ALIAS_FUNC(GPE_IRQHandler, Default_Handler) // 20: GPIO PORT E Interrupt WEAK_ALIAS_FUNC(GPF_IRQHandler, Default_Handler) // 21: GPIO PORT F Interrupt WEAK_ALIAS_FUNC(QSPI0_IRQHandler, Default_Handler) // 22: QSPI0 Interrupt WEAK_ALIAS_FUNC(SPI0_IRQHandler, Default_Handler) // 23: SPI0 Interrupt WEAK_ALIAS_FUNC(BRAKE0_IRQHandler, Default_Handler) // 24: PWM Brake0 Interrupt WEAK_ALIAS_FUNC(PWM0_P0_IRQHandler, Default_Handler) // 25: PWM0 P0 Interrupt WEAK_ALIAS_FUNC(PWM0_P1_IRQHandler, Default_Handler) // 26: PWM0 P1 Interrupt WEAK_ALIAS_FUNC(PWM0_P2_IRQHandler, Default_Handler) // 27: PWM0 P2 Interrupt WEAK_ALIAS_FUNC(BRAKE1_IRQHandler, Default_Handler) // 28: PWM Brake1 Interrupt WEAK_ALIAS_FUNC(PWM1_P0_IRQHandler, Default_Handler) // 29: PWM1 P0 Interrupt WEAK_ALIAS_FUNC(PWM1_P1_IRQHandler, Default_Handler) // 30: PWM1 P1 Interrupt WEAK_ALIAS_FUNC(PWM1_P2_IRQHandler, Default_Handler) // 31: PWM1 P2 Interrupt WEAK_ALIAS_FUNC(TMR0_IRQHandler, Default_Handler) // 32: TIMER0 Interrupt WEAK_ALIAS_FUNC(TMR1_IRQHandler, Default_Handler) // 33: TIMER1 Interrupt WEAK_ALIAS_FUNC(TMR2_IRQHandler, Default_Handler) // 34: TIMER2 Interrupt WEAK_ALIAS_FUNC(TMR3_IRQHandler, Default_Handler) // 35: TIMER3 Interrupt WEAK_ALIAS_FUNC(UART0_IRQHandler, Default_Handler) // 36: UART0 Interrupt WEAK_ALIAS_FUNC(UART1_IRQHandler, Default_Handler) // 37: UART1 Interrupt WEAK_ALIAS_FUNC(I2C0_IRQHandler, Default_Handler) // 38: I2C0 Interrupt WEAK_ALIAS_FUNC(I2C1_IRQHandler, Default_Handler) // 39: I2C1 Interrupt WEAK_ALIAS_FUNC(PDMA_IRQHandler, Default_Handler) // 40: Peripheral DMA Interrupt WEAK_ALIAS_FUNC(DAC_IRQHandler, Default_Handler) // 41: DAC Interrupt WEAK_ALIAS_FUNC(EADC_INT0_IRQHandler, Default_Handler) // 42: Enhance ADC Interrupt 0 WEAK_ALIAS_FUNC(EADC_INT1_IRQHandler, Default_Handler) // 43: Enhance ADC Interrupt 1 WEAK_ALIAS_FUNC(ACMP01_IRQHandler, Default_Handler) // 44: ACMP0 Interrupt WEAK_ALIAS_FUNC(BPWM0_IRQHandler, Default_Handler) // 45: BPWM0 Interrupt WEAK_ALIAS_FUNC(EADC_INT2_IRQHandler, Default_Handler) // 46: Enhance EADC Interrupt 2 WEAK_ALIAS_FUNC(EADC_INT3_IRQHandler, Default_Handler) // 47: Enhance EADC Interrupt 3 WEAK_ALIAS_FUNC(UART2_IRQHandler, Default_Handler) // 48: UART2 Interrupt // 49: Reserved WEAK_ALIAS_FUNC(USCI0_IRQHandler, Default_Handler) // 50: USCI0 Interrupt // 51: Reserved WEAK_ALIAS_FUNC(USCI1_IRQHandler, Default_Handler) // 52: USCI1 Interrupt WEAK_ALIAS_FUNC(USBD_IRQHandler, Default_Handler) // 53: USB Device Interrupt WEAK_ALIAS_FUNC(BPWM1_IRQHandler, Default_Handler) // 54: BPWM1 Interrupt WEAK_ALIAS_FUNC(PSIO_IRQHandler, Default_Handler) // 55: PSIO Interrupt // 56: Reserved WEAK_ALIAS_FUNC(CRPT_IRQHandler, Default_Handler) // 57: Cryption Interrupt WEAK_ALIAS_FUNC(SC0_IRQHandler, Default_Handler) // 58: Smart Card0 Interrupt // 59: Reserved WEAK_ALIAS_FUNC(USCI2_IRQHandler, Default_Handler) // 60: USCI2 Interrupt // 61: Reserved WEAK_ALIAS_FUNC(OPA_IRQHandler, Default_Handler) // 62: OPA Interrupt // 63: Reserved /* Vector table */ #if defined(__ARMCC_VERSION) __attribute__ ((section("RESET"))) const uint32_t __vector_handlers[] = { #elif defined(__ICCARM__) extern uint32_t CSTACK$$Limit; const uint32_t __vector_table[] @ ".intvec" = { #elif defined(__GNUC__) __attribute__ ((section(".vector_table"))) const uint32_t __vector_handlers[] = { #endif /* Configure Initial Stack Pointer, using linker-generated symbols */ #if defined(__ARMCC_VERSION) (uint32_t) &Image$$ARM_LIB_STACK$$ZI$$Limit, #elif defined(__ICCARM__) //(uint32_t) __sfe("CSTACK"), (uint32_t) &CSTACK$$Limit, #elif defined(__GNUC__) (uint32_t) &__StackTop, #endif (uint32_t) Reset_Handler, // Reset Handler (uint32_t) NMI_Handler, // NMI Handler (uint32_t) HardFault_Handler, // Hard Fault Handler 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved (uint32_t) SVC_Handler, // SVCall Handler 0, // Reserved 0, // Reserved (uint32_t) PendSV_Handler, // PendSV Handler (uint32_t) SysTick_Handler, // SysTick Handler /* External Interrupts */ (uint32_t) BOD_IRQHandler, // 0: Brown-Out Low Voltage Detected Interrupt (uint32_t) IRCTRIM_IRQHandler, // 1: Watch Dog Timer Interrupt (uint32_t) PWRWU_IRQHandler, // 2: EINT0, EINT2 and EINT4 Interrupt (uint32_t) Default_Handler, // 3: Reserved (uint32_t) CLKFAIL_IRQHandler, // 4: Clock fail dector Interrupt (uint32_t) Default_Handler, // 5: Reserved (uint32_t) RTC_IRQHandler, // 6: Real Time Clock Interrupt (uint32_t) TAMPER_IRQHandler, // 7: Tamper detection Interrupt (uint32_t) WDT_IRQHandler, // 8: Watch Dog Timer Interrupt (uint32_t) WWDT_IRQHandler, // 9: Window Watch Dog Timer Interrupt (uint32_t) EINT0_IRQHandler, // 10: External Input 0 Interrupt (uint32_t) EINT1_IRQHandler, // 11: External Input 1 Interrupt (uint32_t) EINT2_IRQHandler, // 12: External Input 2 Interrupt (uint32_t) EINT3_IRQHandler, // 13: External Input 3 Interrupt (uint32_t) EINT4_IRQHandler, // 14: External Input 4 Interrupt (uint32_t) EINT5_IRQHandler, // 15: External Input 5 Interrupt (uint32_t) GPA_IRQHandler, // 16: GPIO PORT A Interrupt (uint32_t) GPB_IRQHandler, // 17: GPIO PORT B Interrupt (uint32_t) GPC_IRQHandler, // 18: GPIO PORT C Interrupt (uint32_t) GPD_IRQHandler, // 19: GPIO PORT D Interrupt (uint32_t) GPE_IRQHandler, // 20: GPIO PORT E Interrupt (uint32_t) GPF_IRQHandler, // 21: GPIO PORT F Interrupt (uint32_t) QSPI0_IRQHandler, // 22: QSPI0 Interrupt (uint32_t) SPI0_IRQHandler, // 23: SPI0 Interrupt (uint32_t) BRAKE0_IRQHandler, // 24: PWM Brake0 Interrupt (uint32_t) PWM0_P0_IRQHandler, // 25: PWM0 P0 Interrupt (uint32_t) PWM0_P1_IRQHandler, // 26: PWM0 P1 Interrupt (uint32_t) PWM0_P2_IRQHandler, // 27: PWM0 P2 Interrupt (uint32_t) BRAKE1_IRQHandler, // 28: PWM Brake1 Interrupt (uint32_t) PWM1_P0_IRQHandler, // 29: PWM1 P0 Interrupt (uint32_t) PWM1_P1_IRQHandler, // 30: PWM1 P1 Interrupt (uint32_t) PWM1_P2_IRQHandler, // 31: PWM1 P2 Interrupt (uint32_t) TMR0_IRQHandler, // 32: TIMER0 Interrupt (uint32_t) TMR1_IRQHandler, // 33: TIMER1 Interrupt (uint32_t) TMR2_IRQHandler, // 34: TIMER2 Interrupt (uint32_t) TMR3_IRQHandler, // 35: TIMER3 Interrupt (uint32_t) UART0_IRQHandler, // 36: UART0 Interrupt (uint32_t) UART1_IRQHandler, // 37: UART1 Interrupt (uint32_t) I2C0_IRQHandler, // 38: I2C0 Interrupt (uint32_t) I2C1_IRQHandler, // 39: I2C1 Interrupt (uint32_t) PDMA_IRQHandler, // 40: Peripheral DMA Interrupt (uint32_t) DAC_IRQHandler, // 41: DAC Interrupt (uint32_t) EADC_INT0_IRQHandler, // 42: Enhance ADC Interrupt 0 (uint32_t) EADC_INT1_IRQHandler, // 43: Enhance ADC Interrupt 1 (uint32_t) ACMP01_IRQHandler, // 44: ACMP0 Interrupt (uint32_t) BPWM0_IRQHandler, // 45: BPWM0 Interrupt (uint32_t) EADC_INT2_IRQHandler, // 46: Enhance EADC Interrupt 2 (uint32_t) EADC_INT3_IRQHandler, // 47: Enhance EADC Interrupt 3 (uint32_t) UART2_IRQHandler, // 48: UART2 Interrupt (uint32_t) Default_Handler, // 49: Reserved (uint32_t) USCI0_IRQHandler, // 50: USCI0 Interrupt (uint32_t) Default_Handler, // 51: Reserved (uint32_t) USCI1_IRQHandler, // 52: USCI1 Interrupt (uint32_t) USBD_IRQHandler, // 53: USB Device Interrupt (uint32_t) BPWM1_IRQHandler, // 54: BPWM1 Interrupt (uint32_t) PSIO_IRQHandler, // 55: PSIO Interrupt (uint32_t) Default_Handler, // 56: Reserved (uint32_t) CRPT_IRQHandler, // 57: Cryption Interrupt (uint32_t) SC0_IRQHandler, // 58: Smart Card0 Interrupt (uint32_t) Default_Handler, // 59: Reserved (uint32_t) USCI2_IRQHandler, // 60: USCI2 Interrupt (uint32_t) Default_Handler, // 61: Reserved (uint32_t) OPA_IRQHandler, // 62: OPA Interrupt (uint32_t) Default_Handler, // 63: Reserved }; void Reset_Handler(void) { /* Disable register write-protection function */ SYS_UnlockReg(); /* Disable Power-on Reset function */ SYS_DISABLE_POR(); /* After power-on, user can turn off internal analog POR circuit to save * power by writing 0x5AA5 to this field. */ SYS->PORCTL1 = 0x5AA5; /* SystemInit() must be called at the very start. */ SystemInit(); /* Enable register write-protection function */ SYS_LockReg(); #if defined(__ARMCC_VERSION) __main(); #elif defined(__ICCARM__) __iar_program_start(); #elif defined(__GNUC__) /* Move (multiple) .data section(s) from ROM to RAM */ { /* Struct of copy table entry which must match linker script */ typedef struct copy_table_entry_ { uint32_t src; // Address to copy from uint32_t dst; // Address to copy to uint32_t size; // Copy size in bytes } copy_table_entry; copy_table_entry *copy_table_ind = (copy_table_entry *) &__copy_table_start__; copy_table_entry *copy_table_end = (copy_table_entry *) &__copy_table_end__; for (; copy_table_ind != copy_table_end; copy_table_ind ++) { uint32_t *src_ind = (uint32_t *) copy_table_ind->src; uint32_t *src_end = (uint32_t *) (copy_table_ind->src + copy_table_ind->size); uint32_t *dst_ind = (uint32_t *) copy_table_ind->dst; if (src_ind != dst_ind) { for (; src_ind < src_end;) { *dst_ind ++ = *src_ind ++; } } } } /* Initialize (multiple) .bss sections to zero */ { /* Struct of zero table entry which must match linker script */ typedef struct zero_table_entry_ { uint32_t start; // Address to start zero'ing uint32_t size; // Zero size in bytes } zero_table_entry; zero_table_entry *zero_table_ind = (zero_table_entry *) &__zero_table_start__; zero_table_entry *zero_table_end = (zero_table_entry *) &__zero_table_end__; for (; zero_table_ind != zero_table_end; zero_table_ind ++) { uint32_t *dst_ind = (uint32_t *) zero_table_ind->start; uint32_t *dst_end = (uint32_t *) (zero_table_ind->start + zero_table_ind->size); for (; dst_ind < dst_end; ) { *dst_ind ++ = 0; } } } _start(); #endif /* Infinite loop */ while (1); } /* Default interrupt handler for unused IRQs. */ void Default_Handler(void) { while (1); }