//***************************************************************************** // K32L2A31A startup code for use with MCUXpresso IDE // // Version : 160420 //***************************************************************************** // // Copyright 2016-2020 NXP // All rights reserved. // // SPDX-License-Identifier: BSD-3-Clause //***************************************************************************** #if defined (DEBUG) #pragma GCC push_options #pragma GCC optimize ("Og") #endif // (DEBUG) #if defined (__cplusplus) #ifdef __REDLIB__ #error Redlib does not support C++ #else //***************************************************************************** // // The entry point for the C++ library startup // //***************************************************************************** extern "C" { extern void __libc_init_array(void); } #endif #endif #define WEAK __attribute__ ((weak)) #define WEAK_AV __attribute__ ((weak, section(".after_vectors"))) #define ALIAS(f) __attribute__ ((weak, alias (#f))) //***************************************************************************** #if defined (__cplusplus) extern "C" { #endif //***************************************************************************** // Flash Configuration block : 16-byte flash configuration field that stores // default protection settings (loaded on reset) and security information that // allows the MCU to restrict access to the Flash Memory module. // Placed at address 0x400 by the linker script. //***************************************************************************** __attribute__ ((used,section(".FlashConfig"))) const struct { unsigned int word1; unsigned int word2; unsigned int word3; unsigned int word4; } Flash_Config = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF3DFE}; //***************************************************************************** // Declaration of external SystemInit function //***************************************************************************** #if defined (__USE_CMSIS) extern void SystemInit(void); #endif // (__USE_CMSIS) //***************************************************************************** // Forward declaration of the core exception handlers. // When the application defines a handler (with the same name), this will // automatically take precedence over these weak definitions. // If your application is a C++ one, then any interrupt handlers defined // in C++ files within in your main application will need to have C linkage // rather than C++ linkage. To do this, make sure that you are using extern "C" // { .... } around the interrupt handler within your main application code. //***************************************************************************** void ResetISR(void); WEAK void NMI_Handler(void); WEAK void HardFault_Handler(void); WEAK void SVC_Handler(void); WEAK void PendSV_Handler(void); WEAK void SysTick_Handler(void); WEAK void IntDefaultHandler(void); //***************************************************************************** // Forward declaration of the application IRQ handlers. When the application // defines a handler (with the same name), this will automatically take // precedence over weak definitions below //***************************************************************************** WEAK void DMA0_04_IRQHandler(void); WEAK void DMA0_15_IRQHandler(void); WEAK void DMA0_26_IRQHandler(void); WEAK void DMA0_37_IRQHandler(void); WEAK void CTI0_DMA0_Error_IRQHandler(void); WEAK void FLEXIO0_IRQHandler(void); WEAK void TPM0_IRQHandler(void); WEAK void TPM1_IRQHandler(void); WEAK void TPM2_IRQHandler(void); WEAK void LPIT0_IRQHandler(void); WEAK void LPSPI0_IRQHandler(void); WEAK void LPSPI1_IRQHandler(void); WEAK void LPUART0_IRQHandler(void); WEAK void LPUART1_IRQHandler(void); WEAK void LPI2C0_IRQHandler(void); WEAK void LPI2C1_IRQHandler(void); WEAK void Reserved32_IRQHandler(void); WEAK void PORTA_IRQHandler(void); WEAK void PORTB_IRQHandler(void); WEAK void PORTC_IRQHandler(void); WEAK void PORTD_IRQHandler(void); WEAK void PORTE_IRQHandler(void); WEAK void LLWU_IRQHandler(void); WEAK void Reserved39_IRQHandler(void); WEAK void USB0_IRQHandler(void); WEAK void ADC0_IRQHandler(void); WEAK void LPTMR0_IRQHandler(void); WEAK void RTC_Seconds_IRQHandler(void); WEAK void INTMUX0_0_IRQHandler(void); WEAK void INTMUX0_1_IRQHandler(void); WEAK void INTMUX0_2_IRQHandler(void); WEAK void INTMUX0_3_IRQHandler(void); WEAK void LPTMR1_IRQHandler(void); WEAK void Reserved49_IRQHandler(void); WEAK void Reserved50_IRQHandler(void); WEAK void Reserved51_IRQHandler(void); WEAK void LPSPI2_IRQHandler(void); WEAK void LPUART2_IRQHandler(void); WEAK void EMVSIM0_IRQHandler(void); WEAK void LPI2C2_IRQHandler(void); WEAK void TSI0_IRQHandler(void); WEAK void PMC_IRQHandler(void); WEAK void FTFA_IRQHandler(void); WEAK void SCG_IRQHandler(void); WEAK void WDOG0_IRQHandler(void); WEAK void DAC0_IRQHandler(void); WEAK void TRNG_IRQHandler(void); WEAK void RCM_IRQHandler(void); WEAK void CMP0_IRQHandler(void); WEAK void CMP1_IRQHandler(void); WEAK void RTC_IRQHandler(void); //***************************************************************************** // Forward declaration of the driver IRQ handlers. These are aliased // to the IntDefaultHandler, which is a 'forever' loop. When the driver // defines a handler (with the same name), this will automatically take // precedence over these weak definitions //***************************************************************************** void DMA0_04_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void DMA0_15_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void DMA0_26_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void DMA0_37_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void CTI0_DMA0_Error_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void FLEXIO0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void TPM0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void TPM1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void TPM2_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPIT0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPSPI0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPSPI1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPUART0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPUART1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPI2C0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPI2C1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void Reserved32_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PORTA_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PORTB_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PORTC_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PORTD_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PORTE_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LLWU_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void Reserved39_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void USB0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPTMR0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void RTC_Seconds_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void INTMUX0_0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void INTMUX0_1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void INTMUX0_2_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void INTMUX0_3_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPTMR1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void Reserved49_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void Reserved50_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void Reserved51_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPSPI2_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPUART2_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void EMVSIM0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void LPI2C2_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void TSI0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void PMC_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void FTFA_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void SCG_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void WDOG0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void DAC0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void TRNG_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void RCM_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void CMP0_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void CMP1_DriverIRQHandler(void) ALIAS(IntDefaultHandler); void RTC_DriverIRQHandler(void) ALIAS(IntDefaultHandler); //***************************************************************************** // The entry point for the application. // __main() is the entry point for Redlib based applications // main() is the entry point for Newlib based applications //***************************************************************************** #if defined (__REDLIB__) extern void __main(void); #endif extern int main(void); //***************************************************************************** // External declaration for the pointer to the stack top from the Linker Script //***************************************************************************** extern void _vStackTop(void); //***************************************************************************** #if defined (__cplusplus) } // extern "C" #endif //***************************************************************************** // The vector table. // This relies on the linker script to place at correct location in memory. //***************************************************************************** extern void (* const g_pfnVectors[])(void); extern void * __Vectors __attribute__ ((alias ("g_pfnVectors"))); __attribute__ ((used, section(".isr_vector"))) void (* const g_pfnVectors[])(void) = { // Core Level - CM0P &_vStackTop, // The initial stack pointer ResetISR, // The reset handler NMI_Handler, // The NMI handler HardFault_Handler, // The hard fault handler 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved SVC_Handler, // SVCall handler 0, // Reserved 0, // Reserved PendSV_Handler, // The PendSV handler SysTick_Handler, // The SysTick handler // Chip Level - K32L2A31A DMA0_04_IRQHandler, // 16: DMA0 channel 0/4 transfer complete DMA0_15_IRQHandler, // 17: DMA0 channel 1/5 transfer complete DMA0_26_IRQHandler, // 18: DMA0 channel 2/6 transfer complete DMA0_37_IRQHandler, // 19: DMA0 channel 3/7 transfer complete CTI0_DMA0_Error_IRQHandler, // 20: CTI0 or DMA0 error FLEXIO0_IRQHandler, // 21: FLEXIO0 TPM0_IRQHandler, // 22: TPM0 single interrupt vector for all sources TPM1_IRQHandler, // 23: TPM1 single interrupt vector for all sources TPM2_IRQHandler, // 24: TPM2 single interrupt vector for all sources LPIT0_IRQHandler, // 25: LPIT0 interrupt LPSPI0_IRQHandler, // 26: LPSPI0 single interrupt vector for all sources LPSPI1_IRQHandler, // 27: LPSPI1 single interrupt vector for all sources LPUART0_IRQHandler, // 28: LPUART0 status and error LPUART1_IRQHandler, // 29: LPUART1 status and error LPI2C0_IRQHandler, // 30: LPI2C0 interrupt LPI2C1_IRQHandler, // 31: LPI2C1 interrupt Reserved32_IRQHandler, // 32: Reserved interrupt PORTA_IRQHandler, // 33: PORTA Pin detect PORTB_IRQHandler, // 34: PORTB Pin detect PORTC_IRQHandler, // 35: PORTC Pin detect PORTD_IRQHandler, // 36: PORTD Pin detect PORTE_IRQHandler, // 37: PORTE Pin detect LLWU_IRQHandler, // 38: Low leakage wakeup Reserved39_IRQHandler, // 39: Reserved interrupt USB0_IRQHandler, // 40: USB0 interrupt ADC0_IRQHandler, // 41: ADC0 interrupt LPTMR0_IRQHandler, // 42: LPTMR0 interrupt RTC_Seconds_IRQHandler, // 43: RTC seconds INTMUX0_0_IRQHandler, // 44: INTMUX0 channel 0 interrupt INTMUX0_1_IRQHandler, // 45: INTMUX0 channel 1 interrupt INTMUX0_2_IRQHandler, // 46: INTMUX0 channel 2 interrupt INTMUX0_3_IRQHandler, // 47: INTMUX0 channel 3 interrupt LPTMR1_IRQHandler, // 48: LPTMR1 interrupt (INTMUX source IRQ0) Reserved49_IRQHandler, // 49: Reserved interrupt Reserved50_IRQHandler, // 50: Reserved interrupt Reserved51_IRQHandler, // 51: Reserved interrupt LPSPI2_IRQHandler, // 52: LPSPI2 single interrupt vector for all sources (INTMUX source IRQ4) LPUART2_IRQHandler, // 53: LPUART2 status and error (INTMUX source IRQ5) EMVSIM0_IRQHandler, // 54: EMVSIM0 interrupt (INTMUX source IRQ6) LPI2C2_IRQHandler, // 55: LPI2C2 interrupt (INTMUX source IRQ7) TSI0_IRQHandler, // 56: TSI0 interrupt (INTMUX source IRQ8) PMC_IRQHandler, // 57: PMC interrupt (INTMUX source IRQ9) FTFA_IRQHandler, // 58: FTFA interrupt (INTMUX source IRQ10) SCG_IRQHandler, // 59: SCG interrupt (INTMUX source IRQ11) WDOG0_IRQHandler, // 60: WDOG0 interrupt (INTMUX source IRQ12) DAC0_IRQHandler, // 61: DAC0 interrupt (INTMUX source IRQ13) TRNG_IRQHandler, // 62: TRNG interrupt (INTMUX source IRQ14) RCM_IRQHandler, // 63: RCM interrupt (INTMUX source IRQ15) CMP0_IRQHandler, // 64: CMP0 interrupt (INTMUX source IRQ16) CMP1_IRQHandler, // 65: CMP1 interrupt (INTMUX source IRQ17) RTC_IRQHandler, // 66: RTC Alarm interrupt (INTMUX source IRQ18) }; /* End of g_pfnVectors */ //***************************************************************************** // Functions to carry out the initialization of RW and BSS data sections. These // are written as separate functions rather than being inlined within the // ResetISR() function in order to cope with MCUs with multiple banks of // memory. //***************************************************************************** __attribute__ ((section(".after_vectors.init_data"))) void data_init(unsigned int romstart, unsigned int start, unsigned int len) { unsigned int *pulDest = (unsigned int*) start; unsigned int *pulSrc = (unsigned int*) romstart; unsigned int loop; for (loop = 0; loop < len; loop = loop + 4) *pulDest++ = *pulSrc++; } __attribute__ ((section(".after_vectors.init_bss"))) void bss_init(unsigned int start, unsigned int len) { unsigned int *pulDest = (unsigned int*) start; unsigned int loop; for (loop = 0; loop < len; loop = loop + 4) *pulDest++ = 0; } //***************************************************************************** // The following symbols are constructs generated by the linker, indicating // the location of various points in the "Global Section Table". This table is // created by the linker via the Code Red managed linker script mechanism. It // contains the load address, execution address and length of each RW data // section and the execution and length of each BSS (zero initialized) section. //***************************************************************************** extern unsigned int __data_section_table; extern unsigned int __data_section_table_end; extern unsigned int __bss_section_table; extern unsigned int __bss_section_table_end; //***************************************************************************** // Reset entry point for your code. // Sets up a simple runtime environment and initializes the C/C++ // library. //***************************************************************************** __attribute__ ((section(".after_vectors.reset"))) void ResetISR(void) { // Disable interrupts __asm volatile ("cpsid i"); #if defined (__USE_CMSIS) // If __USE_CMSIS defined, then call CMSIS SystemInit code SystemInit(); #else // Disable Watchdog // Write watchdog update key to unlock *((volatile unsigned int *)0x40076004) = 0xD928C520; // Set timeout value *((volatile unsigned int *)0x40076008) = 0xFFFF; // Now disable watchdog via control register volatile unsigned int *WDOG_CS = (unsigned int *) 0x40076000; *WDOG_CS = (*WDOG_CS & ~(1 << 7)) | (1 << 5); #endif // (__USE_CMSIS) // // Copy the data sections from flash to SRAM. // unsigned int LoadAddr, ExeAddr, SectionLen; unsigned int *SectionTableAddr; // Load base address of Global Section Table SectionTableAddr = &__data_section_table; // Copy the data sections from flash to SRAM. while (SectionTableAddr < &__data_section_table_end) { LoadAddr = *SectionTableAddr++; ExeAddr = *SectionTableAddr++; SectionLen = *SectionTableAddr++; data_init(LoadAddr, ExeAddr, SectionLen); } // At this point, SectionTableAddr = &__bss_section_table; // Zero fill the bss segment while (SectionTableAddr < &__bss_section_table_end) { ExeAddr = *SectionTableAddr++; SectionLen = *SectionTableAddr++; bss_init(ExeAddr, SectionLen); } #if !defined (__USE_CMSIS) // Assume that if __USE_CMSIS defined, then CMSIS SystemInit code // will setup the VTOR register // Check to see if we are running the code from a non-zero // address (eg RAM, external flash), in which case we need // to modify the VTOR register to tell the CPU that the // vector table is located at a non-0x0 address. unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08; if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) { *pSCB_VTOR = (unsigned int)g_pfnVectors; } #endif // (__USE_CMSIS) #if defined (__cplusplus) // // Call C++ library initialisation // __libc_init_array(); #endif // Reenable interrupts __asm volatile ("cpsie i"); #if defined (__REDLIB__) // Call the Redlib library, which in turn calls main() __main(); #else main(); #endif // // main() shouldn't return, but if it does, we'll just enter an infinite loop // while (1) { ; } } //***************************************************************************** // Default core exception handlers. Override the ones here by defining your own // handler routines in your application code. //***************************************************************************** WEAK_AV void NMI_Handler(void) { while(1) {} } WEAK_AV void HardFault_Handler(void) { while(1) {} } WEAK_AV void SVC_Handler(void) { while(1) {} } WEAK_AV void PendSV_Handler(void) { while(1) {} } WEAK_AV void SysTick_Handler(void) { while(1) {} } //***************************************************************************** // Processor ends up here if an unexpected interrupt occurs or a specific // handler is not present in the application code. //***************************************************************************** WEAK_AV void IntDefaultHandler(void) { while(1) {} } //***************************************************************************** // Default application exception handlers. Override the ones here by defining // your own handler routines in your application code. These routines call // driver exception handlers or IntDefaultHandler() if no driver exception // handler is included. //***************************************************************************** WEAK_AV void DMA0_04_IRQHandler(void) { DMA0_04_DriverIRQHandler(); } WEAK_AV void DMA0_15_IRQHandler(void) { DMA0_15_DriverIRQHandler(); } WEAK_AV void DMA0_26_IRQHandler(void) { DMA0_26_DriverIRQHandler(); } WEAK_AV void DMA0_37_IRQHandler(void) { DMA0_37_DriverIRQHandler(); } WEAK_AV void CTI0_DMA0_Error_IRQHandler(void) { CTI0_DMA0_Error_DriverIRQHandler(); } WEAK_AV void FLEXIO0_IRQHandler(void) { FLEXIO0_DriverIRQHandler(); } WEAK_AV void TPM0_IRQHandler(void) { TPM0_DriverIRQHandler(); } WEAK_AV void TPM1_IRQHandler(void) { TPM1_DriverIRQHandler(); } WEAK_AV void TPM2_IRQHandler(void) { TPM2_DriverIRQHandler(); } WEAK_AV void LPIT0_IRQHandler(void) { LPIT0_DriverIRQHandler(); } WEAK_AV void LPSPI0_IRQHandler(void) { LPSPI0_DriverIRQHandler(); } WEAK_AV void LPSPI1_IRQHandler(void) { LPSPI1_DriverIRQHandler(); } WEAK_AV void LPUART0_IRQHandler(void) { LPUART0_DriverIRQHandler(); } WEAK_AV void LPUART1_IRQHandler(void) { LPUART1_DriverIRQHandler(); } WEAK_AV void LPI2C0_IRQHandler(void) { LPI2C0_DriverIRQHandler(); } WEAK_AV void LPI2C1_IRQHandler(void) { LPI2C1_DriverIRQHandler(); } WEAK_AV void Reserved32_IRQHandler(void) { Reserved32_DriverIRQHandler(); } WEAK_AV void PORTA_IRQHandler(void) { PORTA_DriverIRQHandler(); } WEAK_AV void PORTB_IRQHandler(void) { PORTB_DriverIRQHandler(); } WEAK_AV void PORTC_IRQHandler(void) { PORTC_DriverIRQHandler(); } WEAK_AV void PORTD_IRQHandler(void) { PORTD_DriverIRQHandler(); } WEAK_AV void PORTE_IRQHandler(void) { PORTE_DriverIRQHandler(); } WEAK_AV void LLWU_IRQHandler(void) { LLWU_DriverIRQHandler(); } WEAK_AV void Reserved39_IRQHandler(void) { Reserved39_DriverIRQHandler(); } WEAK_AV void USB0_IRQHandler(void) { USB0_DriverIRQHandler(); } WEAK_AV void ADC0_IRQHandler(void) { ADC0_DriverIRQHandler(); } WEAK_AV void LPTMR0_IRQHandler(void) { LPTMR0_DriverIRQHandler(); } WEAK_AV void RTC_Seconds_IRQHandler(void) { RTC_Seconds_DriverIRQHandler(); } WEAK_AV void INTMUX0_0_IRQHandler(void) { INTMUX0_0_DriverIRQHandler(); } WEAK_AV void INTMUX0_1_IRQHandler(void) { INTMUX0_1_DriverIRQHandler(); } WEAK_AV void INTMUX0_2_IRQHandler(void) { INTMUX0_2_DriverIRQHandler(); } WEAK_AV void INTMUX0_3_IRQHandler(void) { INTMUX0_3_DriverIRQHandler(); } WEAK_AV void LPTMR1_IRQHandler(void) { LPTMR1_DriverIRQHandler(); } WEAK_AV void Reserved49_IRQHandler(void) { Reserved49_DriverIRQHandler(); } WEAK_AV void Reserved50_IRQHandler(void) { Reserved50_DriverIRQHandler(); } WEAK_AV void Reserved51_IRQHandler(void) { Reserved51_DriverIRQHandler(); } WEAK_AV void LPSPI2_IRQHandler(void) { LPSPI2_DriverIRQHandler(); } WEAK_AV void LPUART2_IRQHandler(void) { LPUART2_DriverIRQHandler(); } WEAK_AV void EMVSIM0_IRQHandler(void) { EMVSIM0_DriverIRQHandler(); } WEAK_AV void LPI2C2_IRQHandler(void) { LPI2C2_DriverIRQHandler(); } WEAK_AV void TSI0_IRQHandler(void) { TSI0_DriverIRQHandler(); } WEAK_AV void PMC_IRQHandler(void) { PMC_DriverIRQHandler(); } WEAK_AV void FTFA_IRQHandler(void) { FTFA_DriverIRQHandler(); } WEAK_AV void SCG_IRQHandler(void) { SCG_DriverIRQHandler(); } WEAK_AV void WDOG0_IRQHandler(void) { WDOG0_DriverIRQHandler(); } WEAK_AV void DAC0_IRQHandler(void) { DAC0_DriverIRQHandler(); } WEAK_AV void TRNG_IRQHandler(void) { TRNG_DriverIRQHandler(); } WEAK_AV void RCM_IRQHandler(void) { RCM_DriverIRQHandler(); } WEAK_AV void CMP0_IRQHandler(void) { CMP0_DriverIRQHandler(); } WEAK_AV void CMP1_IRQHandler(void) { CMP1_DriverIRQHandler(); } WEAK_AV void RTC_IRQHandler(void) { RTC_DriverIRQHandler(); } //***************************************************************************** #if defined (DEBUG) #pragma GCC pop_options #endif // (DEBUG)