SysTick timer is the source of time base. * It is used to generate interrupts at regular time intervals where uwTick * is incremented. * @note This function is declared as __weak to be overwritten in case of other * implementations
__weak HAL_StatusTypeDefHAL_InitTick(uint32_t TickPriority){/*Configure the SysTick to have interrupt in 1ms time basis*/HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000U);/*Configure the SysTick IRQ priority */HAL_NVIC_SetPriority(SysTick_IRQn,TickPriority,0U);/* Return function status *...
7 * @note This function is declared as __weak to be overwritten in case of other 8 * ...
this is done through SystemInit() function which is called from startup file (startup_stm32f0xx.s) before to branch to application main. To reconfigure the default setting of SystemInit() function, refer to system_stm32f0xx.c file*//*Setup SysTick Timer for 1 msec interrupts. --- 1....
中断向量定义在startup_stm32f10x_hd.s文件 line77 DCD SysTick_Handler ; SysTick Handler 中断函数定义在stm32f10x_it.c lin135 /** * @brief This function handles SysTick Handler. * @param None * @retval None*/voidSysTick_Handler(void) ...
#include "stm32f1xx_hal.h" typedef void(*pFunction)(void); uint32_t JumpAddress; pFunction JumpToApplication; uint32_t *VectorTable; void SystemClock_Config(void) { // 系统时钟配置代码 } int main(void) { // 初始化HAL库 HAL_Init(); // 配置系统时钟 SystemClock_Config(); // 检查是...
* @brief This function provides minimum delay (in milliseconds) based*/__weak void HAL_Delay(uint32_t Delay);/*Wait for Timeout (Time Delay).*/osStatus_t osDelay (uint32_t ticks); 可以看到HAL_Delay函数的目的是提供毫秒级别的延时,意味着当你输入HAL_Delay(500),硬件会尽量延时精确到500ms...
/* Return function status */ return status; } //HAL 库的 SYSTICK 配置函数:文件 stm32l4xx_hal_context.c 中定义 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb) { return SysTick_Config(TicksNumb); } //内核的 Systick 配置函数,配置每隔 ticks 个 systick 周期中断一次在文件 core_cm4.h...
STM8 Tutorial 2 – Implementing a simple delay function STM8 Series of microcontrollers, the 8-bit series of STMicroelectronics, are cheap but powerful micros which provide a good value and performance to your simple projects. The problem is, these series are not geared toward hobby market. ...
fac_us为us的延时基数 即延时1us，systick->LOAD所应设置的值 为9不是9MHZ不带单位，你后来的理解正确。void delay