/** ****************************************************************************** * @file startup_hk32f030mf4p6.s * @brief HK32F030MF4P6 devices vector table for GCC toolchain. * This module performs: * - Set the initial SP * - Set the initial PC == Reset_Handler, * - Set the vector table entries with the exceptions ISR address * - Branches to main in the C library (which eventually calls main()). * After Reset the Cortex-M0 processor is in Thread mode, * priority is Privileged, and the Stack is set to Main. ****************************************************************************** */ .syntax unified .cpu cortex-m0 .fpu softvfp .thumb .global g_pfnVectors .global Default_Handler /* start address for the initialization values of the .data section. defined in linker script */ .word _sidata /* start address for the .data section. defined in linker script */ .word _sdata /* end address for the .data section. defined in linker script */ .word _edata /* start address for the .bss section. defined in linker script */ .word _sbss /* end address for the .bss section. defined in linker script */ .word _ebss .section .text.Reset_Handler .weak Reset_Handler .type Reset_Handler, %function Reset_Handler: ldr r0, =_estack mov sp, r0 /* set stack pointer */ /* Copy the data segment initializers from flash to SRAM */ ldr r0, =_sdata ldr r1, =_edata ldr r2, =_sidata movs r3, #0 b LoopCopyDataInit CopyDataInit: ldr r4, [r2, r3] str r4, [r0, r3] adds r3, r3, #4 LoopCopyDataInit: adds r4, r0, r3 cmp r4, r1 bcc CopyDataInit /* Zero fill the bss segment. */ ldr r2, =_sbss ldr r4, =_ebss movs r3, #0 b LoopFillZerobss FillZerobss: str r3, [r2] adds r2, r2, #4 LoopFillZerobss: cmp r2, r4 bcc FillZerobss /* Call the clock system intitialization function.*/ bl SystemInit /* Call static constructors. Remove this line if compile with `-nostartfiles` reports error */ bl __libc_init_array /* Call the application's entry point.*/ bl main LoopForever: b LoopForever .size Reset_Handler, .-Reset_Handler /** * @brief This is the code that gets called when the processor receives an * unexpected interrupt. This simply enters an infinite loop, preserving * the system state for examination by a debugger. * * @param None * @retval : None */ .section .text.Default_Handler,"ax",%progbits Default_Handler: Infinite_Loop: b Infinite_Loop .size Default_Handler, .-Default_Handler /****************************************************************************** * * The minimal vector table for a Cortex M0. Note that the proper constructs * must be placed on this to ensure that it ends up at physical address * 0x0000.0000. * ******************************************************************************/ .section .isr_vector,"a",%progbits .type g_pfnVectors, %object .size g_pfnVectors, .-g_pfnVectors g_pfnVectors: .word _estack .word Reset_Handler .word NMI_Handler .word HardFault_Handler .word 0 .word 0 .word 0 .word 0 .word 0 .word 0 .word 0 .word SVC_Handler .word 0 .word 0 .word PendSV_Handler .word SysTick_Handler .word WWDG_IRQHandler /* Window WatchDog */ .word 0 /* Reserved */ .word EXTI11_IRQHandler /* EXTI Line 11 interrupt(AWU_WKP) */ .word FLASH_IRQHandler /* FLASH */ .word RCC_IRQHandler /* RCC */ .word EXTI0_IRQHandler /* EXTI Line 0 */ .word EXTI1_IRQHandler /* EXTI Line 1 */ .word EXTI2_IRQHandler /* EXTI Line 2 */ .word EXTI3_IRQHandler /* EXTI Line 3 */ .word EXTI4_IRQHandler /* EXTI Line 4 */ .word EXTI5_IRQHandler /* EXTI Line 5 */ .word TIM1_BRK_IRQHandler /* TIM1 break interrupt */ .word ADC1_IRQHandler /* ADC1 interrupt, combined with EXTI line 8 */ .word TIM1_UP_TRG_COM_IRQHandler /* TIM1 Update, Trigger and Commutation */ .word TIM1_CC_IRQHandler /* TIM1 Capture Compare */ .word TIM2_IRQHandler /* TIM2 */ .word 0 /* Reserved */ .word TIM6_IRQHandler /* TIM6 */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word EXTI6_IRQHandler /* EXTI Line 6 */ .word EXTI7_IRQHandler /* EXTI Line 7 */ .word I2C1_IRQHandler /* I2C1 global interrupt, combined with EXTI Line 10 */ .word 0 /* Reserved */ .word SPI1_IRQHandler /* SPI1 */ .word 0 /* Reserved */ .word USART1_IRQHandler /* USART1 global interrupt, combined with EXTI Line 9 */ //.word 0 /* Reserved */ //.word 0 /* Reserved */ //.word 0 /* Reserved */ //.word 0 /* Reserved */ /******************************************************************************* * * Provide weak aliases for each Exception handler to the Default_Handler. * As they are weak aliases, any function with the same name will override * this definition. * *******************************************************************************/ .weak NMI_Handler .thumb_set NMI_Handler,Default_Handler .weak HardFault_Handler .thumb_set HardFault_Handler,Default_Handler .weak SVC_Handler .thumb_set SVC_Handler,Default_Handler .weak PendSV_Handler .thumb_set PendSV_Handler,Default_Handler .weak SysTick_Handler .thumb_set SysTick_Handler,Default_Handler .weak WWDG_IRQHandler .thumb_set WWDG_IRQHandler,Default_Handler .weak EXTI11_IRQHandler .thumb_set EXTI11_IRQHandler,Default_Handler .weak FLASH_IRQHandler .thumb_set FLASH_IRQHandler,Default_Handler .weak RCC_IRQHandler .thumb_set RCC_IRQHandler,Default_Handler .weak EXTI0_IRQHandler .thumb_set EXTI0_IRQHandler,Default_Handler .weak EXTI1_IRQHandler .thumb_set EXTI1_IRQHandler,Default_Handler .weak EXTI2_IRQHandler .thumb_set EXTI2_IRQHandler,Default_Handler .weak EXTI3_IRQHandler .thumb_set EXTI3_IRQHandler,Default_Handler .weak EXTI4_IRQHandler .thumb_set EXTI4_IRQHandler,Default_Handler .weak EXTI5_IRQHandler .thumb_set EXTI5_IRQHandler,Default_Handler .weak TIM1_BRK_IRQHandler .thumb_set TIM1_BRK_IRQHandler,Default_Handler .weak ADC1_IRQHandler .thumb_set ADC1_IRQHandler,Default_Handler .weak TIM1_UP_TRG_COM_IRQHandler .thumb_set TIM1_UP_TRG_COM_IRQHandler,Default_Handler .weak TIM1_CC_IRQHandler .thumb_set TIM1_CC_IRQHandler,Default_Handler .weak TIM2_IRQHandler .thumb_set TIM2_IRQHandler,Default_Handler .weak TIM6_IRQHandler .thumb_set TIM6_IRQHandler,Default_Handler .weak EXTI6_IRQHandler .thumb_set EXTI6_IRQHandler,Default_Handler .weak EXTI7_IRQHandler .thumb_set EXTI7_IRQHandler,Default_Handler .weak I2C1_IRQHandler .thumb_set I2C1_IRQHandler,Default_Handler .weak SPI1_IRQHandler .thumb_set SPI1_IRQHandler,Default_Handler .weak USART1_IRQHandler .thumb_set USART1_IRQHandler,Default_Handler