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/**
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******************************************************************************
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* @file startup_stm32h743xx.s
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* @author MCD Application Team
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* @brief STM32H743xx Devices vector table for GCC based toolchain.
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* This module performs:
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* - Set the initial SP
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* - Set the initial PC == Reset_Handler,
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* - Set the vector table entries with the exceptions ISR address
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* - Branches to main in the C library (which eventually
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* calls main()).
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* After Reset the Cortex-M processor is in Thread mode,
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* priority is Privileged, and the Stack is set to Main.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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.syntax unified
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.cpu cortex-m7
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.fpu softvfp
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.thumb
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.global g_pfnVectors
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.global Default_Handler
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/* start address for the initialization values of the .data section.
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defined in linker script */
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.word _sidata
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/* start address for the .data section. defined in linker script */
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.word _sdata
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/* end address for the .data section. defined in linker script */
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.word _edata
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/* start address for the .bss section. defined in linker script */
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.word _sbss
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/* end address for the .bss section. defined in linker script */
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.word _ebss
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/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
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/**
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* @brief This is the code that gets called when the processor first
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* starts execution following a reset event. Only the absolutely
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* necessary set is performed, after which the application
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* supplied main() routine is called.
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* @param None
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* @retval : None
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*/
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.section .text.Reset_Handler
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.weak Reset_Handler
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.type Reset_Handler, %function
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Reset_Handler:
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ldr sp, =_estack /* set stack pointer */
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/* Copy the data segment initializers from flash to SRAM */
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movs r1, #0
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b LoopCopyDataInit
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CopyDataInit:
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ldr r3, =_sidata
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ldr r3, [r3, r1]
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str r3, [r0, r1]
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adds r1, r1, #4
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LoopCopyDataInit:
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ldr r0, =_sdata
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ldr r3, =_edata
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adds r2, r0, r1
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cmp r2, r3
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bcc CopyDataInit
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ldr r2, =_sbss
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b LoopFillZerobss
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/* Zero fill the bss segment. */
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FillZerobss:
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movs r3, #0
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str r3, [r2], #4
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LoopFillZerobss:
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ldr r3, = _ebss
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cmp r2, r3
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bcc FillZerobss
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/* Call the clock system intitialization function.*/
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bl SystemInit
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/* Call static constructors */
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/* bl __libc_init_array */
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/* Call the application's entry point.*/
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bl entry
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bx lr
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.size Reset_Handler, .-Reset_Handler
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/**
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* @brief This is the code that gets called when the processor receives an
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* unexpected interrupt. This simply enters an infinite loop, preserving
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* the system state for examination by a debugger.
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* @param None
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* @retval None
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*/
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.section .text.Default_Handler,"ax",%progbits
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Default_Handler:
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Infinite_Loop:
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b Infinite_Loop
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.size Default_Handler, .-Default_Handler
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/******************************************************************************
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*
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* The minimal vector table for a Cortex M. Note that the proper constructs
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* must be placed on this to ensure that it ends up at physical address
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* 0x0000.0000.
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*
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*******************************************************************************/
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.section .isr_vector,"a",%progbits
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.type g_pfnVectors, %object
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.size g_pfnVectors, .-g_pfnVectors
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g_pfnVectors:
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.word _estack
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.word Reset_Handler
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.word NMI_Handler
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.word HardFault_Handler
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.word MemManage_Handler
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.word BusFault_Handler
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.word UsageFault_Handler
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.word 0
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.word 0
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.word 0
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.word 0
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.word SVC_Handler
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.word DebugMon_Handler
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.word 0
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.word PendSV_Handler
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.word SysTick_Handler
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/* External Interrupts */
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.word WWDG_IRQHandler /* Window WatchDog */
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.word PVD_AVD_IRQHandler /* PVD/AVD through EXTI Line detection */
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.word TAMP_STAMP_IRQHandler /* Tamper and TimeStamps through the EXTI line */
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.word RTC_WKUP_IRQHandler /* RTC Wakeup through the EXTI line */
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.word FLASH_IRQHandler /* FLASH */
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.word RCC_IRQHandler /* RCC */
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.word EXTI0_IRQHandler /* EXTI Line0 */
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.word EXTI1_IRQHandler /* EXTI Line1 */
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.word EXTI2_IRQHandler /* EXTI Line2 */
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.word EXTI3_IRQHandler /* EXTI Line3 */
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.word EXTI4_IRQHandler /* EXTI Line4 */
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.word DMA1_Stream0_IRQHandler /* DMA1 Stream 0 */
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.word DMA1_Stream1_IRQHandler /* DMA1 Stream 1 */
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.word DMA1_Stream2_IRQHandler /* DMA1 Stream 2 */
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.word DMA1_Stream3_IRQHandler /* DMA1 Stream 3 */
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.word DMA1_Stream4_IRQHandler /* DMA1 Stream 4 */
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.word DMA1_Stream5_IRQHandler /* DMA1 Stream 5 */
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.word DMA1_Stream6_IRQHandler /* DMA1 Stream 6 */
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.word ADC_IRQHandler /* ADC1, ADC2 and ADC3s */
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.word FDCAN1_IT0_IRQHandler /* FDCAN1 interrupt line 0 */
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.word FDCAN2_IT0_IRQHandler /* FDCAN2 interrupt line 0 */
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.word FDCAN1_IT1_IRQHandler /* FDCAN1 interrupt line 1 */
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.word FDCAN2_IT1_IRQHandler /* FDCAN2 interrupt line 1 */
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.word EXTI9_5_IRQHandler /* External Line[9:5]s */
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.word TIM1_BRK_IRQHandler /* TIM1 Break interrupt */
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.word TIM1_UP_IRQHandler /* TIM1 Update interrupt */
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.word TIM1_TRG_COM_IRQHandler /* TIM1 Trigger and Commutation interrupt */
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.word TIM1_CC_IRQHandler /* TIM1 Capture Compare */
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.word TIM2_IRQHandler /* TIM2 */
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.word TIM3_IRQHandler /* TIM3 */
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.word TIM4_IRQHandler /* TIM4 */
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.word I2C1_EV_IRQHandler /* I2C1 Event */
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.word I2C1_ER_IRQHandler /* I2C1 Error */
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.word I2C2_EV_IRQHandler /* I2C2 Event */
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.word I2C2_ER_IRQHandler /* I2C2 Error */
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.word SPI1_IRQHandler /* SPI1 */
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.word SPI2_IRQHandler /* SPI2 */
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.word USART1_IRQHandler /* USART1 */
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.word USART2_IRQHandler /* USART2 */
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.word USART3_IRQHandler /* USART3 */
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.word EXTI15_10_IRQHandler /* External Line[15:10]s */
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.word RTC_Alarm_IRQHandler /* RTC Alarm (A and B) through EXTI Line */
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.word 0 /* Reserved */
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.word TIM8_BRK_TIM12_IRQHandler /* TIM8 Break and TIM12 */
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.word TIM8_UP_TIM13_IRQHandler /* TIM8 Update and TIM13 */
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.word TIM8_TRG_COM_TIM14_IRQHandler /* TIM8 Trigger and Commutation and TIM14 */
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.word TIM8_CC_IRQHandler /* TIM8 Capture Compare */
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.word DMA1_Stream7_IRQHandler /* DMA1 Stream7 */
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.word FMC_IRQHandler /* FMC */
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.word SDMMC1_IRQHandler /* SDMMC1 */
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.word TIM5_IRQHandler /* TIM5 */
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.word SPI3_IRQHandler /* SPI3 */
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.word UART4_IRQHandler /* UART4 */
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.word UART5_IRQHandler /* UART5 */
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.word TIM6_DAC_IRQHandler /* TIM6 and DAC1&2 underrun errors */
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.word TIM7_IRQHandler /* TIM7 */
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.word DMA2_Stream0_IRQHandler /* DMA2 Stream 0 */
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.word DMA2_Stream1_IRQHandler /* DMA2 Stream 1 */
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.word DMA2_Stream2_IRQHandler /* DMA2 Stream 2 */
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.word DMA2_Stream3_IRQHandler /* DMA2 Stream 3 */
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.word DMA2_Stream4_IRQHandler /* DMA2 Stream 4 */
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.word ETH_IRQHandler /* Ethernet */
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.word ETH_WKUP_IRQHandler /* Ethernet Wakeup through EXTI line */
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.word FDCAN_CAL_IRQHandler /* FDCAN calibration unit interrupt*/
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word DMA2_Stream5_IRQHandler /* DMA2 Stream 5 */
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.word DMA2_Stream6_IRQHandler /* DMA2 Stream 6 */
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.word DMA2_Stream7_IRQHandler /* DMA2 Stream 7 */
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.word USART6_IRQHandler /* USART6 */
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.word I2C3_EV_IRQHandler /* I2C3 event */
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.word I2C3_ER_IRQHandler /* I2C3 error */
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.word OTG_HS_EP1_OUT_IRQHandler /* USB OTG HS End Point 1 Out */
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.word OTG_HS_EP1_IN_IRQHandler /* USB OTG HS End Point 1 In */
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.word OTG_HS_WKUP_IRQHandler /* USB OTG HS Wakeup through EXTI */
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.word OTG_HS_IRQHandler /* USB OTG HS */
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.word DCMI_IRQHandler /* DCMI */
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.word 0 /* Reserved */
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.word RNG_IRQHandler /* Rng */
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.word FPU_IRQHandler /* FPU */
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.word UART7_IRQHandler /* UART7 */
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.word UART8_IRQHandler /* UART8 */
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.word SPI4_IRQHandler /* SPI4 */
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.word SPI5_IRQHandler /* SPI5 */
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.word SPI6_IRQHandler /* SPI6 */
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.word SAI1_IRQHandler /* SAI1 */
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.word LTDC_IRQHandler /* LTDC */
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.word LTDC_ER_IRQHandler /* LTDC error */
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.word DMA2D_IRQHandler /* DMA2D */
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.word SAI2_IRQHandler /* SAI2 */
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.word QUADSPI_IRQHandler /* QUADSPI */
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.word LPTIM1_IRQHandler /* LPTIM1 */
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.word CEC_IRQHandler /* HDMI_CEC */
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.word I2C4_EV_IRQHandler /* I2C4 Event */
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.word I2C4_ER_IRQHandler /* I2C4 Error */
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.word SPDIF_RX_IRQHandler /* SPDIF_RX */
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.word OTG_FS_EP1_OUT_IRQHandler /* USB OTG FS End Point 1 Out */
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.word OTG_FS_EP1_IN_IRQHandler /* USB OTG FS End Point 1 In */
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.word OTG_FS_WKUP_IRQHandler /* USB OTG FS Wakeup through EXTI */
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.word OTG_FS_IRQHandler /* USB OTG FS */
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.word DMAMUX1_OVR_IRQHandler /* DMAMUX1 Overrun interrupt */
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.word HRTIM1_Master_IRQHandler /* HRTIM Master Timer global Interrupt */
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.word HRTIM1_TIMA_IRQHandler /* HRTIM Timer A global Interrupt */
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.word HRTIM1_TIMB_IRQHandler /* HRTIM Timer B global Interrupt */
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.word HRTIM1_TIMC_IRQHandler /* HRTIM Timer C global Interrupt */
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.word HRTIM1_TIMD_IRQHandler /* HRTIM Timer D global Interrupt */
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.word HRTIM1_TIME_IRQHandler /* HRTIM Timer E global Interrupt */
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.word HRTIM1_FLT_IRQHandler /* HRTIM Fault global Interrupt */
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||||
.word DFSDM1_FLT0_IRQHandler /* DFSDM Filter0 Interrupt */
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.word DFSDM1_FLT1_IRQHandler /* DFSDM Filter1 Interrupt */
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.word DFSDM1_FLT2_IRQHandler /* DFSDM Filter2 Interrupt */
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.word DFSDM1_FLT3_IRQHandler /* DFSDM Filter3 Interrupt */
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.word SAI3_IRQHandler /* SAI3 global Interrupt */
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.word SWPMI1_IRQHandler /* Serial Wire Interface 1 global interrupt */
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.word TIM15_IRQHandler /* TIM15 global Interrupt */
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||||
.word TIM16_IRQHandler /* TIM16 global Interrupt */
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.word TIM17_IRQHandler /* TIM17 global Interrupt */
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.word MDIOS_WKUP_IRQHandler /* MDIOS Wakeup Interrupt */
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||||
.word MDIOS_IRQHandler /* MDIOS global Interrupt */
|
||||
.word JPEG_IRQHandler /* JPEG global Interrupt */
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||||
.word MDMA_IRQHandler /* MDMA global Interrupt */
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||||
.word 0 /* Reserved */
|
||||
.word SDMMC2_IRQHandler /* SDMMC2 global Interrupt */
|
||||
.word HSEM1_IRQHandler /* HSEM1 global Interrupt */
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||||
.word 0 /* Reserved */
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||||
.word ADC3_IRQHandler /* ADC3 global Interrupt */
|
||||
.word DMAMUX2_OVR_IRQHandler /* DMAMUX Overrun interrupt */
|
||||
.word BDMA_Channel0_IRQHandler /* BDMA Channel 0 global Interrupt */
|
||||
.word BDMA_Channel1_IRQHandler /* BDMA Channel 1 global Interrupt */
|
||||
.word BDMA_Channel2_IRQHandler /* BDMA Channel 2 global Interrupt */
|
||||
.word BDMA_Channel3_IRQHandler /* BDMA Channel 3 global Interrupt */
|
||||
.word BDMA_Channel4_IRQHandler /* BDMA Channel 4 global Interrupt */
|
||||
.word BDMA_Channel5_IRQHandler /* BDMA Channel 5 global Interrupt */
|
||||
.word BDMA_Channel6_IRQHandler /* BDMA Channel 6 global Interrupt */
|
||||
.word BDMA_Channel7_IRQHandler /* BDMA Channel 7 global Interrupt */
|
||||
.word COMP1_IRQHandler /* COMP1 global Interrupt */
|
||||
.word LPTIM2_IRQHandler /* LP TIM2 global interrupt */
|
||||
.word LPTIM3_IRQHandler /* LP TIM3 global interrupt */
|
||||
.word LPTIM4_IRQHandler /* LP TIM4 global interrupt */
|
||||
.word LPTIM5_IRQHandler /* LP TIM5 global interrupt */
|
||||
.word LPUART1_IRQHandler /* LP UART1 interrupt */
|
||||
.word 0 /* Reserved */
|
||||
.word CRS_IRQHandler /* Clock Recovery Global Interrupt */
|
||||
.word ECC_IRQHandler /* ECC diagnostic Global Interrupt */
|
||||
.word SAI4_IRQHandler /* SAI4 global interrupt */
|
||||
.word 0 /* Reserved */
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||||
.word 0 /* Reserved */
|
||||
.word WAKEUP_PIN_IRQHandler /* Interrupt for all 6 wake-up pins */
|
||||
|
||||
/*******************************************************************************
|
||||
*
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||||
* 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.
|
||||
*
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||||
*******************************************************************************/
|
||||
.weak NMI_Handler
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||||
.thumb_set NMI_Handler,Default_Handler
|
||||
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.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_AVD_IRQHandler
|
||||
.thumb_set PVD_AVD_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_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 DMA1_Stream0_IRQHandler
|
||||
.thumb_set DMA1_Stream0_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream1_IRQHandler
|
||||
.thumb_set DMA1_Stream1_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream2_IRQHandler
|
||||
.thumb_set DMA1_Stream2_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream3_IRQHandler
|
||||
.thumb_set DMA1_Stream3_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream4_IRQHandler
|
||||
.thumb_set DMA1_Stream4_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream5_IRQHandler
|
||||
.thumb_set DMA1_Stream5_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream6_IRQHandler
|
||||
.thumb_set DMA1_Stream6_IRQHandler,Default_Handler
|
||||
|
||||
.weak ADC_IRQHandler
|
||||
.thumb_set ADC_IRQHandler,Default_Handler
|
||||
|
||||
.weak FDCAN1_IT0_IRQHandler
|
||||
.thumb_set FDCAN1_IT0_IRQHandler,Default_Handler
|
||||
|
||||
.weak FDCAN2_IT0_IRQHandler
|
||||
.thumb_set FDCAN2_IT0_IRQHandler,Default_Handler
|
||||
|
||||
.weak FDCAN1_IT1_IRQHandler
|
||||
.thumb_set FDCAN1_IT1_IRQHandler,Default_Handler
|
||||
|
||||
.weak FDCAN2_IT1_IRQHandler
|
||||
.thumb_set FDCAN2_IT1_IRQHandler,Default_Handler
|
||||
|
||||
.weak EXTI9_5_IRQHandler
|
||||
.thumb_set EXTI9_5_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM1_BRK_IRQHandler
|
||||
.thumb_set TIM1_BRK_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM1_UP_IRQHandler
|
||||
.thumb_set TIM1_UP_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM1_TRG_COM_IRQHandler
|
||||
.thumb_set TIM1_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 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 TIM8_BRK_TIM12_IRQHandler
|
||||
.thumb_set TIM8_BRK_TIM12_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM8_UP_TIM13_IRQHandler
|
||||
.thumb_set TIM8_UP_TIM13_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM8_TRG_COM_TIM14_IRQHandler
|
||||
.thumb_set TIM8_TRG_COM_TIM14_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM8_CC_IRQHandler
|
||||
.thumb_set TIM8_CC_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA1_Stream7_IRQHandler
|
||||
.thumb_set DMA1_Stream7_IRQHandler,Default_Handler
|
||||
|
||||
.weak FMC_IRQHandler
|
||||
.thumb_set FMC_IRQHandler,Default_Handler
|
||||
|
||||
.weak SDMMC1_IRQHandler
|
||||
.thumb_set SDMMC1_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM5_IRQHandler
|
||||
.thumb_set TIM5_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_Stream0_IRQHandler
|
||||
.thumb_set DMA2_Stream0_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream1_IRQHandler
|
||||
.thumb_set DMA2_Stream1_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream2_IRQHandler
|
||||
.thumb_set DMA2_Stream2_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream3_IRQHandler
|
||||
.thumb_set DMA2_Stream3_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream4_IRQHandler
|
||||
.thumb_set DMA2_Stream4_IRQHandler,Default_Handler
|
||||
|
||||
.weak ETH_IRQHandler
|
||||
.thumb_set ETH_IRQHandler,Default_Handler
|
||||
|
||||
.weak ETH_WKUP_IRQHandler
|
||||
.thumb_set ETH_WKUP_IRQHandler,Default_Handler
|
||||
|
||||
.weak FDCAN_CAL_IRQHandler
|
||||
.thumb_set FDCAN_CAL_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream5_IRQHandler
|
||||
.thumb_set DMA2_Stream5_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream6_IRQHandler
|
||||
.thumb_set DMA2_Stream6_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2_Stream7_IRQHandler
|
||||
.thumb_set DMA2_Stream7_IRQHandler,Default_Handler
|
||||
|
||||
.weak USART6_IRQHandler
|
||||
.thumb_set USART6_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 OTG_HS_EP1_OUT_IRQHandler
|
||||
.thumb_set OTG_HS_EP1_OUT_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_HS_EP1_IN_IRQHandler
|
||||
.thumb_set OTG_HS_EP1_IN_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_HS_WKUP_IRQHandler
|
||||
.thumb_set OTG_HS_WKUP_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_HS_IRQHandler
|
||||
.thumb_set OTG_HS_IRQHandler,Default_Handler
|
||||
|
||||
.weak DCMI_IRQHandler
|
||||
.thumb_set DCMI_IRQHandler,Default_Handler
|
||||
|
||||
.weak RNG_IRQHandler
|
||||
.thumb_set RNG_IRQHandler,Default_Handler
|
||||
|
||||
.weak FPU_IRQHandler
|
||||
.thumb_set FPU_IRQHandler,Default_Handler
|
||||
|
||||
.weak UART7_IRQHandler
|
||||
.thumb_set UART7_IRQHandler,Default_Handler
|
||||
|
||||
.weak UART8_IRQHandler
|
||||
.thumb_set UART8_IRQHandler,Default_Handler
|
||||
|
||||
.weak SPI4_IRQHandler
|
||||
.thumb_set SPI4_IRQHandler,Default_Handler
|
||||
|
||||
.weak SPI5_IRQHandler
|
||||
.thumb_set SPI5_IRQHandler,Default_Handler
|
||||
|
||||
.weak SPI6_IRQHandler
|
||||
.thumb_set SPI6_IRQHandler,Default_Handler
|
||||
|
||||
.weak SAI1_IRQHandler
|
||||
.thumb_set SAI1_IRQHandler,Default_Handler
|
||||
|
||||
.weak LTDC_IRQHandler
|
||||
.thumb_set LTDC_IRQHandler,Default_Handler
|
||||
|
||||
.weak LTDC_ER_IRQHandler
|
||||
.thumb_set LTDC_ER_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMA2D_IRQHandler
|
||||
.thumb_set DMA2D_IRQHandler,Default_Handler
|
||||
|
||||
.weak SAI2_IRQHandler
|
||||
.thumb_set SAI2_IRQHandler,Default_Handler
|
||||
|
||||
.weak QUADSPI_IRQHandler
|
||||
.thumb_set QUADSPI_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPTIM1_IRQHandler
|
||||
.thumb_set LPTIM1_IRQHandler,Default_Handler
|
||||
|
||||
.weak CEC_IRQHandler
|
||||
.thumb_set CEC_IRQHandler,Default_Handler
|
||||
|
||||
.weak I2C4_EV_IRQHandler
|
||||
.thumb_set I2C4_EV_IRQHandler,Default_Handler
|
||||
|
||||
.weak I2C4_ER_IRQHandler
|
||||
.thumb_set I2C4_ER_IRQHandler,Default_Handler
|
||||
|
||||
.weak SPDIF_RX_IRQHandler
|
||||
.thumb_set SPDIF_RX_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_FS_EP1_OUT_IRQHandler
|
||||
.thumb_set OTG_FS_EP1_OUT_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_FS_EP1_IN_IRQHandler
|
||||
.thumb_set OTG_FS_EP1_IN_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_FS_WKUP_IRQHandler
|
||||
.thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler
|
||||
|
||||
.weak OTG_FS_IRQHandler
|
||||
.thumb_set OTG_FS_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMAMUX1_OVR_IRQHandler
|
||||
.thumb_set DMAMUX1_OVR_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_Master_IRQHandler
|
||||
.thumb_set HRTIM1_Master_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_TIMA_IRQHandler
|
||||
.thumb_set HRTIM1_TIMA_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_TIMB_IRQHandler
|
||||
.thumb_set HRTIM1_TIMB_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_TIMC_IRQHandler
|
||||
.thumb_set HRTIM1_TIMC_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_TIMD_IRQHandler
|
||||
.thumb_set HRTIM1_TIMD_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_TIME_IRQHandler
|
||||
.thumb_set HRTIM1_TIME_IRQHandler,Default_Handler
|
||||
|
||||
.weak HRTIM1_FLT_IRQHandler
|
||||
.thumb_set HRTIM1_FLT_IRQHandler,Default_Handler
|
||||
|
||||
.weak DFSDM1_FLT0_IRQHandler
|
||||
.thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler
|
||||
|
||||
.weak DFSDM1_FLT1_IRQHandler
|
||||
.thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler
|
||||
|
||||
.weak DFSDM1_FLT2_IRQHandler
|
||||
.thumb_set DFSDM1_FLT2_IRQHandler,Default_Handler
|
||||
|
||||
.weak DFSDM1_FLT3_IRQHandler
|
||||
.thumb_set DFSDM1_FLT3_IRQHandler,Default_Handler
|
||||
|
||||
.weak SAI3_IRQHandler
|
||||
.thumb_set SAI3_IRQHandler,Default_Handler
|
||||
|
||||
.weak SWPMI1_IRQHandler
|
||||
.thumb_set SWPMI1_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM15_IRQHandler
|
||||
.thumb_set TIM15_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM16_IRQHandler
|
||||
.thumb_set TIM16_IRQHandler,Default_Handler
|
||||
|
||||
.weak TIM17_IRQHandler
|
||||
.thumb_set TIM17_IRQHandler,Default_Handler
|
||||
|
||||
.weak MDIOS_WKUP_IRQHandler
|
||||
.thumb_set MDIOS_WKUP_IRQHandler,Default_Handler
|
||||
|
||||
.weak MDIOS_IRQHandler
|
||||
.thumb_set MDIOS_IRQHandler,Default_Handler
|
||||
|
||||
.weak JPEG_IRQHandler
|
||||
.thumb_set JPEG_IRQHandler,Default_Handler
|
||||
|
||||
.weak MDMA_IRQHandler
|
||||
.thumb_set MDMA_IRQHandler,Default_Handler
|
||||
|
||||
.weak SDMMC2_IRQHandler
|
||||
.thumb_set SDMMC2_IRQHandler,Default_Handler
|
||||
|
||||
.weak HSEM1_IRQHandler
|
||||
.thumb_set HSEM1_IRQHandler,Default_Handler
|
||||
|
||||
.weak ADC3_IRQHandler
|
||||
.thumb_set ADC3_IRQHandler,Default_Handler
|
||||
|
||||
.weak DMAMUX2_OVR_IRQHandler
|
||||
.thumb_set DMAMUX2_OVR_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel0_IRQHandler
|
||||
.thumb_set BDMA_Channel0_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel1_IRQHandler
|
||||
.thumb_set BDMA_Channel1_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel2_IRQHandler
|
||||
.thumb_set BDMA_Channel2_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel3_IRQHandler
|
||||
.thumb_set BDMA_Channel3_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel4_IRQHandler
|
||||
.thumb_set BDMA_Channel4_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel5_IRQHandler
|
||||
.thumb_set BDMA_Channel5_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel6_IRQHandler
|
||||
.thumb_set BDMA_Channel6_IRQHandler,Default_Handler
|
||||
|
||||
.weak BDMA_Channel7_IRQHandler
|
||||
.thumb_set BDMA_Channel7_IRQHandler,Default_Handler
|
||||
|
||||
.weak COMP1_IRQHandler
|
||||
.thumb_set COMP1_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPTIM2_IRQHandler
|
||||
.thumb_set LPTIM2_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPTIM3_IRQHandler
|
||||
.thumb_set LPTIM3_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPTIM4_IRQHandler
|
||||
.thumb_set LPTIM4_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPTIM5_IRQHandler
|
||||
.thumb_set LPTIM5_IRQHandler,Default_Handler
|
||||
|
||||
.weak LPUART1_IRQHandler
|
||||
.thumb_set LPUART1_IRQHandler,Default_Handler
|
||||
|
||||
.weak CRS_IRQHandler
|
||||
.thumb_set CRS_IRQHandler,Default_Handler
|
||||
|
||||
.weak ECC_IRQHandler
|
||||
.thumb_set ECC_IRQHandler,Default_Handler
|
||||
|
||||
.weak SAI4_IRQHandler
|
||||
.thumb_set SAI4_IRQHandler,Default_Handler
|
||||
|
||||
.weak WAKEUP_PIN_IRQHandler
|
||||
.thumb_set WAKEUP_PIN_IRQHandler,Default_Handler
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
|
||||
@@ -0,0 +1,386 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file system_stm32h7xx.c
|
||||
* @author MCD Application Team
|
||||
* @brief CMSIS Cortex-Mx Device Peripheral Access Layer System Source File.
|
||||
*
|
||||
* This file provides two functions and one global variable to be called from
|
||||
* user application:
|
||||
* - SystemInit(): This function is called at startup just after reset and
|
||||
* before branch to main program. This call is made inside
|
||||
* the "startup_stm32h7xx.s" file.
|
||||
*
|
||||
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
|
||||
* by the user application to setup the SysTick
|
||||
* timer or configure other parameters.
|
||||
*
|
||||
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
|
||||
* be called whenever the core clock is changed
|
||||
* during program execution.
|
||||
*
|
||||
*
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32h7xx_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "stm32h7xx.h"
|
||||
#include <math.h>
|
||||
#if !defined (HSE_VALUE)
|
||||
#define HSE_VALUE ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
|
||||
#endif /* HSE_VALUE */
|
||||
|
||||
#if !defined (CSI_VALUE)
|
||||
#define CSI_VALUE ((uint32_t)4000000) /*!< Value of the Internal oscillator in Hz*/
|
||||
#endif /* CSI_VALUE */
|
||||
|
||||
#if !defined (HSI_VALUE)
|
||||
#define HSI_VALUE ((uint32_t)64000000) /*!< Value of the Internal oscillator in Hz*/
|
||||
#endif /* HSI_VALUE */
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_TypesDefinitions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_Defines
|
||||
* @{
|
||||
*/
|
||||
|
||||
/************************* Miscellaneous Configuration ************************/
|
||||
/*!< Uncomment the following line if you need to use initialized data in D2 domain SRAM (AHB SRAM) */
|
||||
/* #define DATA_IN_D2_SRAM */
|
||||
|
||||
/*!< Uncomment the following line if you need to relocate your vector Table in
|
||||
Internal SRAM. */
|
||||
/* #define VECT_TAB_SRAM */
|
||||
#define VECT_TAB_OFFSET 0x00000000UL /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
/******************************************************************************/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_Variables
|
||||
* @{
|
||||
*/
|
||||
/* This variable is updated in three ways:
|
||||
1) by calling CMSIS function SystemCoreClockUpdate()
|
||||
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
|
||||
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
|
||||
Note: If you use this function to configure the system clock; then there
|
||||
is no need to call the 2 first functions listed above, since SystemCoreClock
|
||||
variable is updated automatically.
|
||||
*/
|
||||
uint32_t SystemCoreClock = 64000000;
|
||||
uint32_t SystemD2Clock = 64000000;
|
||||
const uint8_t D1CorePrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9};
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_FunctionPrototypes
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32H7xx_System_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Setup the microcontroller system
|
||||
* Initialize the FPU setting and vector table location
|
||||
* configuration.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit (void)
|
||||
{
|
||||
#if defined (DATA_IN_D2_SRAM)
|
||||
__IO uint32_t tmpreg;
|
||||
#endif /* DATA_IN_D2_SRAM */
|
||||
|
||||
/* FPU settings ------------------------------------------------------------*/
|
||||
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
|
||||
SCB->CPACR |= ((3UL << (10*2))|(3UL << (11*2))); /* set CP10 and CP11 Full Access */
|
||||
#endif
|
||||
/* Reset the RCC clock configuration to the default reset state ------------*/
|
||||
/* Set HSION bit */
|
||||
RCC->CR |= RCC_CR_HSION;
|
||||
|
||||
/* Reset CFGR register */
|
||||
RCC->CFGR = 0x00000000;
|
||||
|
||||
/* Reset HSEON, CSSON , CSION,RC48ON, CSIKERON PLL1ON, PLL2ON and PLL3ON bits */
|
||||
RCC->CR &= 0xEAF6ED7FU;
|
||||
|
||||
#if defined(D3_SRAM_BASE)
|
||||
/* Reset D1CFGR register */
|
||||
RCC->D1CFGR = 0x00000000;
|
||||
|
||||
/* Reset D2CFGR register */
|
||||
RCC->D2CFGR = 0x00000000;
|
||||
|
||||
/* Reset D3CFGR register */
|
||||
RCC->D3CFGR = 0x00000000;
|
||||
#else
|
||||
/* Reset CDCFGR1 register */
|
||||
RCC->CDCFGR1 = 0x00000000;
|
||||
|
||||
/* Reset CDCFGR2 register */
|
||||
RCC->CDCFGR2 = 0x00000000;
|
||||
|
||||
/* Reset SRDCFGR register */
|
||||
RCC->SRDCFGR = 0x00000000;
|
||||
#endif
|
||||
/* Reset PLLCKSELR register */
|
||||
RCC->PLLCKSELR = 0x00000000;
|
||||
|
||||
/* Reset PLLCFGR register */
|
||||
RCC->PLLCFGR = 0x00000000;
|
||||
/* Reset PLL1DIVR register */
|
||||
RCC->PLL1DIVR = 0x00000000;
|
||||
/* Reset PLL1FRACR register */
|
||||
RCC->PLL1FRACR = 0x00000000;
|
||||
|
||||
/* Reset PLL2DIVR register */
|
||||
RCC->PLL2DIVR = 0x00000000;
|
||||
|
||||
/* Reset PLL2FRACR register */
|
||||
|
||||
RCC->PLL2FRACR = 0x00000000;
|
||||
/* Reset PLL3DIVR register */
|
||||
RCC->PLL3DIVR = 0x00000000;
|
||||
|
||||
/* Reset PLL3FRACR register */
|
||||
RCC->PLL3FRACR = 0x00000000;
|
||||
|
||||
/* Reset HSEBYP bit */
|
||||
RCC->CR &= 0xFFFBFFFFU;
|
||||
|
||||
/* Disable all interrupts */
|
||||
RCC->CIER = 0x00000000;
|
||||
|
||||
#if defined (DATA_IN_D2_SRAM)
|
||||
/* in case of initialized data in D2 SRAM (AHB SRAM) , enable the D2 SRAM clock ((AHB SRAM clock) */
|
||||
#if defined(RCC_AHB2ENR_D2SRAM1EN)
|
||||
RCC->AHB2ENR |= (RCC_AHB2ENR_D2SRAM1EN | RCC_AHB2ENR_D2SRAM2EN | RCC_AHB2ENR_D2SRAM3EN);
|
||||
#else
|
||||
RCC->AHB2ENR |= (RCC_AHB2ENR_AHBSRAM1EN | RCC_AHB2ENR_AHBSRAM2EN);
|
||||
#endif /* RCC_AHB2ENR_D2SRAM1EN */
|
||||
|
||||
tmpreg = RCC->AHB2ENR;
|
||||
(void) tmpreg;
|
||||
#endif /* DATA_IN_D2_SRAM */
|
||||
|
||||
#if defined(DUAL_CORE) && defined(CORE_CM4)
|
||||
/* Configure the Vector Table location add offset address for cortex-M4 ------------------*/
|
||||
#ifdef VECT_TAB_SRAM
|
||||
SCB->VTOR = D2_AHBSRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
|
||||
#else
|
||||
SCB->VTOR = FLASH_BANK2_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
|
||||
#endif /* VECT_TAB_SRAM */
|
||||
|
||||
#else
|
||||
/* dual core CM7 or single core line */
|
||||
if((DBGMCU->IDCODE & 0xFFFF0000U) < 0x20000000U)
|
||||
{
|
||||
/* if stm32h7 revY*/
|
||||
/* Change the switch matrix read issuing capability to 1 for the AXI SRAM target (Target 7) */
|
||||
*((__IO uint32_t*)0x51008108) = 0x000000001U;
|
||||
}
|
||||
|
||||
/* Configure the Vector Table location add offset address for cortex-M7 ------------------*/
|
||||
#ifdef VECT_TAB_SRAM
|
||||
SCB->VTOR = D1_AXISRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal D1 AXI-RAM */
|
||||
#else
|
||||
SCB->VTOR = FLASH_BANK1_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
|
||||
#endif
|
||||
|
||||
#endif /*DUAL_CORE && CORE_CM4*/
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Update SystemCoreClock variable according to Clock Register Values.
|
||||
* The SystemCoreClock variable contains the core clock , it can
|
||||
* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
|
||||
* @note Each time the core clock changes, this function must be called
|
||||
* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
||||
*
|
||||
* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
||||
* constant and the selected clock source:
|
||||
*
|
||||
* - If SYSCLK source is CSI, SystemCoreClock will contain the CSI_VALUE(*)
|
||||
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**)
|
||||
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
|
||||
* - If SYSCLK source is PLL, SystemCoreClock will contain the CSI_VALUE(*),
|
||||
* HSI_VALUE(**) or HSE_VALUE(***) multiplied/divided by the PLL factors.
|
||||
*
|
||||
* (*) CSI_VALUE is a constant defined in stm32h7xx_hal.h file (default value
|
||||
* 4 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
* (**) HSI_VALUE is a constant defined in stm32h7xx_hal.h file (default value
|
||||
* 64 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (***)HSE_VALUE is a constant defined in stm32h7xx_hal.h file (default value
|
||||
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
|
||||
* frequency of the crystal used. Otherwise, this function may
|
||||
* have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate (void)
|
||||
{
|
||||
uint32_t pllp, pllsource, pllm, pllfracen, hsivalue, tmp;
|
||||
float_t fracn1, pllvco;
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
|
||||
switch (RCC->CFGR & RCC_CFGR_SWS)
|
||||
{
|
||||
case RCC_CFGR_SWS_HSI: /* HSI used as system clock source */
|
||||
SystemCoreClock = (uint32_t) (HSI_VALUE >> ((RCC->CR & RCC_CR_HSIDIV)>> 3));
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_CSI: /* CSI used as system clock source */
|
||||
SystemCoreClock = CSI_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_HSE: /* HSE used as system clock source */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_PLL1: /* PLL1 used as system clock source */
|
||||
|
||||
/* PLL_VCO = (HSE_VALUE or HSI_VALUE or CSI_VALUE/ PLLM) * PLLN
|
||||
SYSCLK = PLL_VCO / PLLR
|
||||
*/
|
||||
pllsource = (RCC->PLLCKSELR & RCC_PLLCKSELR_PLLSRC);
|
||||
pllm = ((RCC->PLLCKSELR & RCC_PLLCKSELR_DIVM1)>> 4) ;
|
||||
pllfracen = ((RCC->PLLCFGR & RCC_PLLCFGR_PLL1FRACEN)>>RCC_PLLCFGR_PLL1FRACEN_Pos);
|
||||
fracn1 = (float_t)(uint32_t)(pllfracen* ((RCC->PLL1FRACR & RCC_PLL1FRACR_FRACN1)>> 3));
|
||||
|
||||
if (pllm != 0U)
|
||||
{
|
||||
switch (pllsource)
|
||||
{
|
||||
case RCC_PLLCKSELR_PLLSRC_HSI: /* HSI used as PLL clock source */
|
||||
|
||||
hsivalue = (HSI_VALUE >> ((RCC->CR & RCC_CR_HSIDIV)>> 3)) ;
|
||||
pllvco = ( (float_t)hsivalue / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
|
||||
|
||||
break;
|
||||
|
||||
case RCC_PLLCKSELR_PLLSRC_CSI: /* CSI used as PLL clock source */
|
||||
pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
|
||||
break;
|
||||
|
||||
case RCC_PLLCKSELR_PLLSRC_HSE: /* HSE used as PLL clock source */
|
||||
pllvco = ((float_t)HSE_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
|
||||
break;
|
||||
|
||||
default:
|
||||
pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
|
||||
break;
|
||||
}
|
||||
pllp = (((RCC->PLL1DIVR & RCC_PLL1DIVR_P1) >>9) + 1U ) ;
|
||||
SystemCoreClock = (uint32_t)(float_t)(pllvco/(float_t)pllp);
|
||||
}
|
||||
else
|
||||
{
|
||||
SystemCoreClock = 0U;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
SystemCoreClock = CSI_VALUE;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Compute SystemClock frequency --------------------------------------------------*/
|
||||
#if defined (RCC_D1CFGR_D1CPRE)
|
||||
tmp = D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_D1CPRE)>> RCC_D1CFGR_D1CPRE_Pos];
|
||||
|
||||
/* SystemCoreClock frequency : CM7 CPU frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
|
||||
/* SystemD2Clock frequency : CM4 CPU, AXI and AHBs Clock frequency */
|
||||
SystemD2Clock = (SystemCoreClock >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_HPRE)>> RCC_D1CFGR_HPRE_Pos]) & 0x1FU));
|
||||
|
||||
#else
|
||||
tmp = D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE)>> RCC_CDCFGR1_CDCPRE_Pos];
|
||||
|
||||
/* SystemCoreClock frequency : CM7 CPU frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
|
||||
/* SystemD2Clock frequency : AXI and AHBs Clock frequency */
|
||||
SystemD2Clock = (SystemCoreClock >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)>> RCC_CDCFGR1_HPRE_Pos]) & 0x1FU));
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
Reference in new issue
Block a user