//***************************************************************************** // LPC15xx Microcontroller Startup code for use with LPCXpresso IDE // // Version : 150706 //***************************************************************************** // // Copyright 2013-2015, 2019, 2020 NXP // All rights reserved. // // NXP Confidential. This software is owned or controlled by NXP and may only be // used strictly in accordance with the applicable license terms. // // By expressly accepting such terms or by downloading, installing, activating // and/or otherwise using the software, you are agreeing that you have read, and // that you agree to comply with and are bound by, such license terms. // // If you do not agree to be bound by the applicable license terms, then you may not // retain, install, activate or otherwise use the software. //***************************************************************************** #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 ALIAS(f) __attribute__ ((weak, alias (#f))) //***************************************************************************** #if defined (__cplusplus) extern "C" { #endif //***************************************************************************** #if defined (__USE_CMSIS) || defined (__USE_LPCOPEN) // Declaration of external SystemInit function extern void SystemInit(void); #endif //***************************************************************************** // // Forward declaration of the default handlers. These are aliased. // When the application defines a handler (with the same name), this will // automatically take precedence over these weak definitions // //***************************************************************************** void ResetISR(void); WEAK void NMI_Handler(void); WEAK void HardFault_Handler(void); WEAK void MemManage_Handler(void); WEAK void BusFault_Handler(void); WEAK void UsageFault_Handler(void); WEAK void SVC_Handler(void); WEAK void DebugMon_Handler(void); WEAK void PendSV_Handler(void); WEAK void SysTick_Handler(void); WEAK void IntDefaultHandler(void); //***************************************************************************** // // Forward declaration of the specific IRQ handlers. These are aliased // to the IntDefaultHandler, which is a 'forever' loop. When the application // defines a handler (with the same name), this will automatically take // precedence over these weak definitions // //***************************************************************************** // Note: The names used for the IRQ Handlers in the LPCXpresso LPC15xx startup // code did not originally match those used by the LPCOpen LPC15xx packages. // Now default to using LPCOpen IRQ Handler names. But allow the use of the // previous names if necessary for legacy code by undefining the below symbol #define USE_LPCOPEN_IRQHANDLER_NAMES #if defined (USE_LPCOPEN_IRQHANDLER_NAMES) void WDT_IRQHandler(void) ALIAS(IntDefaultHandler); void BOD_IRQHandler(void) ALIAS(IntDefaultHandler); void FMC_IRQHandler(void) ALIAS(IntDefaultHandler); void EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler); void DMA_IRQHandler(void) ALIAS(IntDefaultHandler); void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler); void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT0_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT1_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT2_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT3_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT4_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT5_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT6_IRQHandler(void) ALIAS(IntDefaultHandler); void PIN_INT7_IRQHandler(void) ALIAS(IntDefaultHandler); void RIT_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT0_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT1_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT2_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT3_IRQHandler(void) ALIAS(IntDefaultHandler); void MRT_IRQHandler(void) ALIAS(IntDefaultHandler); void UART0_IRQHandler(void) ALIAS(IntDefaultHandler); void UART1_IRQHandler(void) ALIAS(IntDefaultHandler); void UART2_IRQHandler(void) ALIAS(IntDefaultHandler); void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler); void SPI0_IRQHandler(void) ALIAS(IntDefaultHandler); void SPI1_IRQHandler(void) ALIAS(IntDefaultHandler); void CAN_IRQHandler(void) ALIAS(IntDefaultHandler); void USB_IRQHandler(void) ALIAS(IntDefaultHandler); void USB_FIQHandler(void) ALIAS(IntDefaultHandler); void USBWakeup_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0A_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0B_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_OVR_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1A_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1B_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_OVR_IRQHandler(void) ALIAS(IntDefaultHandler); void DAC_IRQHandler(void) ALIAS(IntDefaultHandler); void ACMP0_IRQHandler(void) ALIAS(IntDefaultHandler); void ACMP1_IRQHandler(void) ALIAS(IntDefaultHandler); void ACMP2_IRQHandler(void) ALIAS(IntDefaultHandler); void ACMP3_IRQHandler(void) ALIAS(IntDefaultHandler); void QEI_IRQHandler(void) ALIAS(IntDefaultHandler); void RTC_ALARM_IRQHandler(void) ALIAS(IntDefaultHandler); void RTC_WAKE_IRQHandler(void) ALIAS(IntDefaultHandler); #else void WDT_IRQHandler(void) ALIAS(IntDefaultHandler); void BOD_IRQHandler(void) ALIAS(IntDefaultHandler); void FLASH_IRQHandler(void) ALIAS(IntDefaultHandler); void EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler); void DMA_IRQHandler(void) ALIAS(IntDefaultHandler); void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler); void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT0_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT1_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT2_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT3_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT4_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT5_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT6_IRQHandler(void) ALIAS(IntDefaultHandler); void PININT7_IRQHandler(void) ALIAS(IntDefaultHandler); void RIT_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT0_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT1_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT2_IRQHandler(void) ALIAS(IntDefaultHandler); void SCT3_IRQHandler(void) ALIAS(IntDefaultHandler); void MRT_IRQHandler(void) ALIAS(IntDefaultHandler); void UART0_IRQHandler(void) ALIAS(IntDefaultHandler); void UART1_IRQHandler(void) ALIAS(IntDefaultHandler); void UART2_IRQHandler(void) ALIAS(IntDefaultHandler); void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler); void SPI0_IRQHandler(void) ALIAS(IntDefaultHandler); void SPI1_IRQHandler(void) ALIAS(IntDefaultHandler); void CAN0_IRQHandler(void) ALIAS(IntDefaultHandler); void USB_IRQHandler(void) ALIAS(IntDefaultHandler); void USB_FIQHandler(void) ALIAS(IntDefaultHandler); void USBWakeup_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_SEQA_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_SEQB_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC0_OVR_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_SEQA_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_SEQB_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler); void ADC1_OVR_IRQHandler(void) ALIAS(IntDefaultHandler); void DAC_IRQHandler(void) ALIAS(IntDefaultHandler); void CMP0_IRQHandler(void) ALIAS(IntDefaultHandler); void CMP1_IRQHandler(void) ALIAS(IntDefaultHandler); void CMP2_IRQHandler(void) ALIAS(IntDefaultHandler); void CMP3_IRQHandler(void) ALIAS(IntDefaultHandler); void QEI_IRQHandler(void) ALIAS(IntDefaultHandler); void RTC_ALARM_IRQHandler(void) ALIAS(IntDefaultHandler); void RTC_WAKE_IRQHandler(void) ALIAS(IntDefaultHandler); #endif //***************************************************************************** // // 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); //***************************************************************************** // // External declaration for LPC MCU vector table checksum from Linker Script // //***************************************************************************** WEAK extern void __valid_user_code_checksum(); //***************************************************************************** #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); __attribute__ ((used,section(".isr_vector"))) void (* const g_pfnVectors[])(void) = { // Core Level - CM3 &_vStackTop, // The initial stack pointer ResetISR, // The reset handler NMI_Handler, // The NMI handler HardFault_Handler, // The hard fault handler MemManage_Handler, // The MPU fault handler BusFault_Handler, // The bus fault handler UsageFault_Handler, // The usage fault handler __valid_user_code_checksum, // LPC MCU Checksum 0, // Reserved 0, // Reserved 0, // Reserved SVC_Handler, // SVCall handler DebugMon_Handler, // Debug monitor handler 0, // Reserved PendSV_Handler, // The PendSV handler SysTick_Handler, // The SysTick handler // Chip Level - LPC15xx #if defined (USE_LPCOPEN_IRQHANDLER_NAMES) WDT_IRQHandler, // 0 - Windowed watchdog timer BOD_IRQHandler, // 1 - BOD FMC_IRQHandler, // 2 - Flash controller EEPROM_IRQHandler, // 3 - EEPROM controller DMA_IRQHandler, // 4 - DMA GINT0_IRQHandler, // 5 - GINT0 GINT1_IRQHandler, // 6 - GINT1 PIN_INT0_IRQHandler, // 7 - PIO INT0 PIN_INT1_IRQHandler, // 8 - PIO INT1 PIN_INT2_IRQHandler, // 9 - PIO INT2 PIN_INT3_IRQHandler, // 10 - PIO INT3 PIN_INT4_IRQHandler, // 11 - PIO INT4 PIN_INT5_IRQHandler, // 12 - PIO INT5 PIN_INT6_IRQHandler, // 13 - PIO INT6 PIN_INT7_IRQHandler, // 14 - PIO INT7 RIT_IRQHandler, // 15 - RIT SCT0_IRQHandler, // 16 - State configurable timer SCT1_IRQHandler, // 17 - State configurable timer SCT2_IRQHandler, // 18 - State configurable timer SCT3_IRQHandler, // 19 - State configurable timer MRT_IRQHandler, // 20 - Multi-Rate Timer UART0_IRQHandler, // 21 - UART0 UART1_IRQHandler, // 22 - UART1 UART2_IRQHandler, // 23 - UART2 I2C0_IRQHandler, // 24 - I2C0 controller SPI0_IRQHandler, // 25 - SPI0 controller SPI1_IRQHandler, // 26 - SPI1 controller CAN_IRQHandler, // 27 - C_CAN0 USB_IRQHandler, // 28 - USB IRQ USB_FIQHandler, // 29 - USB FIQ USBWakeup_IRQHandler, // 30 - USB wake-up ADC0A_IRQHandler, // 31 - ADC0 sequence A completion ADC0B_IRQHandler, // 32 - ADC0 sequence B completion ADC0_THCMP_IRQHandler, // 33 - ADC0 threshold compare ADC0_OVR_IRQHandler, // 34 - ADC0 overrun ADC1A_IRQHandler, // 35 - ADC1 sequence A completion ADC1B_IRQHandler, // 36 - ADC1 sequence B completion ADC1_THCMP_IRQHandler, // 37 - ADC1 threshold compare ADC1_OVR_IRQHandler, // 38 - ADC1 overrun DAC_IRQHandler, // 39 - DAC ACMP0_IRQHandler, // 40 - Analog Comparator 0 ACMP1_IRQHandler, // 41 - Analog Comparator 1 ACMP2_IRQHandler, // 42 - Analog Comparator 2 ACMP3_IRQHandler, // 43 - Analog Comparator 3 QEI_IRQHandler, // 44 - QEI RTC_ALARM_IRQHandler, // 45 - RTC alarm RTC_WAKE_IRQHandler, // 46 - RTC wake-up #else WDT_IRQHandler, // 0 - Windowed watchdog timer BOD_IRQHandler, // 1 - BOD FLASH_IRQHandler, // 2 - Flash controller EEPROM_IRQHandler, // 3 - EEPROM controller DMA_IRQHandler, // 4 - DMA GINT0_IRQHandler, // 5 - GINT0 GINT1_IRQHandler, // 6 - GINT1 PININT0_IRQHandler, // 7 - PIO INT0 PININT1_IRQHandler, // 8 - PIO INT1 PININT2_IRQHandler, // 9 - PIO INT2 PININT3_IRQHandler, // 10 - PIO INT3 PININT4_IRQHandler, // 11 - PIO INT4 PININT5_IRQHandler, // 12 - PIO INT5 PININT6_IRQHandler, // 13 - PIO INT6 PININT7_IRQHandler, // 14 - PIO INT7 RIT_IRQHandler, // 15 - RIT SCT0_IRQHandler, // 16 - State configurable timer SCT1_IRQHandler, // 17 - State configurable timer SCT2_IRQHandler, // 18 - State configurable timer SCT3_IRQHandler, // 19 - State configurable timer MRT_IRQHandler, // 20 - Multi-Rate Timer UART0_IRQHandler, // 21 - UART0 UART1_IRQHandler, // 22 - UART1 UART2_IRQHandler, // 23 - UART2 I2C0_IRQHandler, // 24 - I2C0 controller SPI0_IRQHandler, // 25 - SPI0 controller SPI1_IRQHandler, // 26 - SPI1 controller CAN0_IRQHandler, // 27 - C_CAN0 USB_IRQHandler, // 28 - USB IRQ USB_FIQHandler, // 29 - USB FIQ USBWakeup_IRQHandler, // 30 - USB wake-up ADC0_SEQA_IRQHandler, // 31 - ADC0 sequence A completion ADC0_SEQB_IRQHandler, // 32 - ADC0 sequence B completion ADC0_THCMP_IRQHandler, // 33 - ADC0 threshold compare ADC0_OVR_IRQHandler, // 34 - ADC0 overrun ADC1_SEQA_IRQHandler, // 35 - ADC1 sequence A completion ADC1_SEQB_IRQHandler, // 36 - ADC1 sequence B completion ADC1_THCMP_IRQHandler, // 37 - ADC1 threshold compare ADC1_OVR_IRQHandler, // 38 - ADC1 overrun DAC_IRQHandler, // 39 - DAC CMP0_IRQHandler, // 40 - Analog Comparator 0 CMP1_IRQHandler, // 41 - Analog Comparator 1 CMP2_IRQHandler, // 42 - Analog Comparator 2 CMP3_IRQHandler, // 43 - Analog Comparator 3 QEI_IRQHandler, // 44 - QEI RTC_ALARM_IRQHandler, // 45 - RTC alarm RTC_WAKE_IRQHandler, // 46 - RTC wake-up #endif }; /* 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"))) 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"))) 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"))) void ResetISR(void) { // // 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); } // Optionally enable Cortex-M3 SWV trace (off by default at reset) // Note - your board support must also set up the switch matrix // so that SWO is output on the appropriate pin for your hardware #if !defined (DONT_ENABLE_SWVTRACECLK) // Write 0x00000001 to TRACECLKDIV – Trace divider volatile unsigned int *TRACECLKDIV = (unsigned int *) 0x400740D8; *TRACECLKDIV = 1; #endif #if defined (__USE_CMSIS) || defined (__USE_LPCOPEN) SystemInit(); #endif #if defined (__cplusplus) // // Call C++ library initialisation // __libc_init_array(); #endif #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 exception handlers. Override the ones here by defining your own // handler routines in your application code. //***************************************************************************** __attribute__ ((section(".after_vectors"))) void NMI_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void HardFault_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void MemManage_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void BusFault_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void UsageFault_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void SVC_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void DebugMon_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) void PendSV_Handler(void) { while(1) {} } __attribute__ ((section(".after_vectors"))) 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. // //***************************************************************************** __attribute__ ((section(".after_vectors"))) void IntDefaultHandler(void) { while(1) {} }