src/TARGET_STM32F303xE/device/TOOLCHAIN_GCC_ARM/startup_stm32f303xe.S

changeset 27
8f2be7aaec00
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/TARGET_STM32F303xE/device/TOOLCHAIN_GCC_ARM/startup_stm32f303xe.S	Thu Oct 15 01:12:31 2020 +0200
@@ -0,0 +1,509 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f303xe.s
+  * @author    MCD Application Team
+  * @brief     STM32F303xE 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,
+  *                - Configure the clock system  
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M4 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  *
+  * 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.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+	.cpu cortex-m4
+	.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
+
+.equ  BootRAM,        0xF1E0F85F
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+    .section	.text.Reset_Handler
+	.weak	Reset_Handler
+	.type	Reset_Handler, %function
+Reset_Handler:
+  ldr   sp, =_estack    /* Atollic update: set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  movs	r1, #0
+  b	LoopCopyDataInit
+
+CopyDataInit:
+	ldr	r3, =_sidata
+	ldr	r3, [r3, r1]
+	str	r3, [r0, r1]
+	adds	r1, r1, #4
+
+LoopCopyDataInit:
+	ldr	r0, =_sdata
+	ldr	r3, =_edata
+	adds	r2, r0, r1
+	cmp	r2, r3
+	bcc	CopyDataInit
+	ldr	r2, =_sbss
+	b	LoopFillZerobss
+/* Zero fill the bss segment. */
+FillZerobss:
+	movs	r3, #0
+	str	r3, [r2], #4
+
+LoopFillZerobss:
+	ldr	r3, = _ebss
+	cmp	r2, r3
+	bcc	FillZerobss
+
+/* Call the clock system intitialization function.*/
+    bl  SystemInit
+/* Call static constructors */
+    //bl __libc_init_array
+/* Call the application's entry point.*/
+    //bl  main
+/**
+ * Calling the crt0 'cold-start' entry point. There __libc_init_array is called
+ * and when existing hardware_init_hook() and software_init_hook() before 
+ * starting main(). software_init_hook() is available and has to be called due 
+ * to initializsation when using rtos.
+*/
+    bl _start
+
+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-M4.  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	MemManage_Handler
+	.word	BusFault_Handler
+	.word	UsageFault_Handler
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	SVC_Handler
+	.word	DebugMon_Handler
+	.word	0
+	.word	PendSV_Handler
+	.word	SysTick_Handler
+	.word	WWDG_IRQHandler
+	.word	PVD_IRQHandler
+	.word	TAMP_STAMP_IRQHandler
+	.word	RTC_WKUP_IRQHandler
+	.word	FLASH_IRQHandler
+	.word	RCC_IRQHandler
+	.word	EXTI0_IRQHandler
+	.word	EXTI1_IRQHandler
+	.word	EXTI2_TSC_IRQHandler
+	.word	EXTI3_IRQHandler
+	.word	EXTI4_IRQHandler
+	.word	DMA1_Channel1_IRQHandler
+	.word	DMA1_Channel2_IRQHandler
+	.word	DMA1_Channel3_IRQHandler
+	.word	DMA1_Channel4_IRQHandler
+	.word	DMA1_Channel5_IRQHandler
+	.word	DMA1_Channel6_IRQHandler
+	.word	DMA1_Channel7_IRQHandler
+	.word	ADC1_2_IRQHandler
+	.word	USB_HP_CAN_TX_IRQHandler
+	.word	USB_LP_CAN_RX0_IRQHandler
+	.word	CAN_RX1_IRQHandler
+	.word	CAN_SCE_IRQHandler
+	.word	EXTI9_5_IRQHandler
+	.word	TIM1_BRK_TIM15_IRQHandler
+	.word	TIM1_UP_TIM16_IRQHandler
+	.word	TIM1_TRG_COM_TIM17_IRQHandler
+	.word	TIM1_CC_IRQHandler
+	.word	TIM2_IRQHandler
+	.word	TIM3_IRQHandler
+	.word	TIM4_IRQHandler
+	.word	I2C1_EV_IRQHandler
+	.word	I2C1_ER_IRQHandler
+	.word	I2C2_EV_IRQHandler
+	.word	I2C2_ER_IRQHandler
+	.word	SPI1_IRQHandler
+	.word	SPI2_IRQHandler
+	.word	USART1_IRQHandler
+	.word	USART2_IRQHandler
+	.word	USART3_IRQHandler
+	.word	EXTI15_10_IRQHandler
+	.word	RTC_Alarm_IRQHandler
+	.word	USBWakeUp_IRQHandler
+	.word	TIM8_BRK_IRQHandler
+	.word	TIM8_UP_IRQHandler
+	.word	TIM8_TRG_COM_IRQHandler
+	.word	TIM8_CC_IRQHandler
+	.word	ADC3_IRQHandler
+	.word	FMC_IRQHandler
+	.word	0
+	.word	0
+	.word	SPI3_IRQHandler
+	.word	UART4_IRQHandler
+	.word	UART5_IRQHandler
+	.word	TIM6_DAC_IRQHandler
+	.word	TIM7_IRQHandler
+	.word	DMA2_Channel1_IRQHandler
+	.word	DMA2_Channel2_IRQHandler
+	.word	DMA2_Channel3_IRQHandler
+	.word	DMA2_Channel4_IRQHandler
+	.word	DMA2_Channel5_IRQHandler
+	.word	ADC4_IRQHandler
+	.word	0
+	.word	0
+	.word	COMP1_2_3_IRQHandler
+	.word	COMP4_5_6_IRQHandler
+	.word	COMP7_IRQHandler
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	I2C3_EV_IRQHandler
+	.word	I2C3_ER_IRQHandler
+	.word	USB_HP_IRQHandler
+	.word	USB_LP_IRQHandler
+	.word	USBWakeUp_RMP_IRQHandler
+	.word	TIM20_BRK_IRQHandler
+	.word	TIM20_UP_IRQHandler
+	.word	TIM20_TRG_COM_IRQHandler
+	.word	TIM20_CC_IRQHandler
+	.word	FPU_IRQHandler
+	.word	0
+	.word	0
+	.word	SPI4_IRQHandler
+
+/*******************************************************************************
+*
+* 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	MemManage_Handler
+	.thumb_set MemManage_Handler,Default_Handler
+
+  .weak	BusFault_Handler
+	.thumb_set BusFault_Handler,Default_Handler
+
+	.weak	UsageFault_Handler
+	.thumb_set UsageFault_Handler,Default_Handler
+
+	.weak	SVC_Handler
+	.thumb_set SVC_Handler,Default_Handler
+
+	.weak	DebugMon_Handler
+	.thumb_set DebugMon_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	PVD_IRQHandler
+	.thumb_set PVD_IRQHandler,Default_Handler
+
+	.weak	TAMP_STAMP_IRQHandler
+	.thumb_set TAMP_STAMP_IRQHandler,Default_Handler
+
+	.weak	RTC_WKUP_IRQHandler
+	.thumb_set RTC_WKUP_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_TSC_IRQHandler
+	.thumb_set EXTI2_TSC_IRQHandler,Default_Handler
+
+	.weak	EXTI3_IRQHandler
+	.thumb_set EXTI3_IRQHandler,Default_Handler
+
+	.weak	EXTI4_IRQHandler
+	.thumb_set EXTI4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel1_IRQHandler
+	.thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel2_IRQHandler
+	.thumb_set DMA1_Channel2_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel3_IRQHandler
+	.thumb_set DMA1_Channel3_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel4_IRQHandler
+	.thumb_set DMA1_Channel4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel5_IRQHandler
+	.thumb_set DMA1_Channel5_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel6_IRQHandler
+	.thumb_set DMA1_Channel6_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel7_IRQHandler
+	.thumb_set DMA1_Channel7_IRQHandler,Default_Handler
+
+	.weak	ADC1_2_IRQHandler
+	.thumb_set ADC1_2_IRQHandler,Default_Handler
+
+	.weak	USB_HP_CAN_TX_IRQHandler
+	.thumb_set USB_HP_CAN_TX_IRQHandler,Default_Handler
+
+	.weak	USB_LP_CAN_RX0_IRQHandler
+	.thumb_set USB_LP_CAN_RX0_IRQHandler,Default_Handler
+
+	.weak	CAN_RX1_IRQHandler
+	.thumb_set CAN_RX1_IRQHandler,Default_Handler
+
+	.weak	CAN_SCE_IRQHandler
+	.thumb_set CAN_SCE_IRQHandler,Default_Handler
+
+	.weak	EXTI9_5_IRQHandler
+	.thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+	.weak	TIM1_BRK_TIM15_IRQHandler
+	.thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler
+
+	.weak	TIM1_UP_TIM16_IRQHandler
+	.thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler
+
+	.weak	TIM1_TRG_COM_TIM17_IRQHandler
+	.thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler
+
+	.weak	TIM1_CC_IRQHandler
+	.thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+	.weak	TIM2_IRQHandler
+	.thumb_set TIM2_IRQHandler,Default_Handler
+
+	.weak	TIM3_IRQHandler
+	.thumb_set TIM3_IRQHandler,Default_Handler
+
+	.weak	TIM4_IRQHandler
+	.thumb_set TIM4_IRQHandler,Default_Handler
+
+	.weak	I2C1_EV_IRQHandler
+	.thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+	.weak	I2C1_ER_IRQHandler
+	.thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+	.weak	I2C2_EV_IRQHandler
+	.thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+	.weak	I2C2_ER_IRQHandler
+	.thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+	.weak	SPI1_IRQHandler
+	.thumb_set SPI1_IRQHandler,Default_Handler
+
+	.weak	SPI2_IRQHandler
+	.thumb_set SPI2_IRQHandler,Default_Handler
+
+	.weak	USART1_IRQHandler
+	.thumb_set USART1_IRQHandler,Default_Handler
+
+	.weak	USART2_IRQHandler
+	.thumb_set USART2_IRQHandler,Default_Handler
+
+	.weak	USART3_IRQHandler
+	.thumb_set USART3_IRQHandler,Default_Handler
+
+	.weak	EXTI15_10_IRQHandler
+	.thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+	.weak	RTC_Alarm_IRQHandler
+	.thumb_set RTC_Alarm_IRQHandler,Default_Handler
+
+	.weak	USBWakeUp_IRQHandler
+	.thumb_set USBWakeUp_IRQHandler,Default_Handler
+
+	.weak	TIM8_BRK_IRQHandler
+	.thumb_set TIM8_BRK_IRQHandler,Default_Handler
+
+	.weak	TIM8_UP_IRQHandler
+	.thumb_set TIM8_UP_IRQHandler,Default_Handler
+
+	.weak	TIM8_TRG_COM_IRQHandler
+	.thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler
+
+	.weak	TIM8_CC_IRQHandler
+	.thumb_set TIM8_CC_IRQHandler,Default_Handler
+
+	.weak	ADC3_IRQHandler
+	.thumb_set ADC3_IRQHandler,Default_Handler
+
+	.weak	FMC_IRQHandler
+	.thumb_set FMC_IRQHandler,Default_Handler
+
+	.weak	SPI3_IRQHandler
+	.thumb_set SPI3_IRQHandler,Default_Handler
+
+	.weak	UART4_IRQHandler
+	.thumb_set UART4_IRQHandler,Default_Handler
+
+	.weak	UART5_IRQHandler
+	.thumb_set UART5_IRQHandler,Default_Handler
+
+	.weak	TIM6_DAC_IRQHandler
+	.thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+	.weak	TIM7_IRQHandler
+	.thumb_set TIM7_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel1_IRQHandler
+	.thumb_set DMA2_Channel1_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel2_IRQHandler
+	.thumb_set DMA2_Channel2_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel3_IRQHandler
+	.thumb_set DMA2_Channel3_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel4_IRQHandler
+	.thumb_set DMA2_Channel4_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel5_IRQHandler
+	.thumb_set DMA2_Channel5_IRQHandler,Default_Handler
+
+	.weak	ADC4_IRQHandler
+	.thumb_set ADC4_IRQHandler,Default_Handler	
+	
+	.weak	COMP1_2_3_IRQHandler
+	.thumb_set COMP1_2_3_IRQHandler,Default_Handler
+	
+	.weak	COMP4_5_6_IRQHandler
+	.thumb_set COMP4_5_6_IRQHandler,Default_Handler
+	
+	.weak	COMP7_IRQHandler
+	.thumb_set COMP7_IRQHandler,Default_Handler	
+	
+	.weak	I2C3_EV_IRQHandler
+	.thumb_set I2C3_EV_IRQHandler,Default_Handler	
+	
+	.weak	I2C3_ER_IRQHandler
+	.thumb_set I2C3_ER_IRQHandler,Default_Handler	
+	
+	.weak	USB_HP_IRQHandler
+	.thumb_set USB_HP_IRQHandler,Default_Handler
+	
+	.weak	USB_LP_IRQHandler
+	.thumb_set USB_LP_IRQHandler,Default_Handler
+	
+	.weak	USBWakeUp_RMP_IRQHandler
+	.thumb_set USBWakeUp_RMP_IRQHandler,Default_Handler
+	
+	.weak	TIM20_BRK_IRQHandler
+	.thumb_set TIM20_BRK_IRQHandler,Default_Handler
+	
+	.weak	TIM20_UP_IRQHandler
+	.thumb_set TIM20_UP_IRQHandler,Default_Handler
+	
+	.weak	TIM20_TRG_COM_IRQHandler
+	.thumb_set TIM20_TRG_COM_IRQHandler,Default_Handler
+	
+	.weak	TIM20_CC_IRQHandler
+	.thumb_set TIM20_CC_IRQHandler,Default_Handler
+	
+	.weak	FPU_IRQHandler
+	.thumb_set FPU_IRQHandler,Default_Handler
+	
+	.weak	SPI4_IRQHandler
+	.thumb_set SPI4_IRQHandler,Default_Handler
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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