45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : hal_stm32f4_delay.c
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* @brief : STM32F4 specific Delay HAL implementation
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******************************************************************************
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*/
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/* USER CODE END Header */
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#include "hal.h"
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#include "hal_delay.h"
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#include "stm32f4xx_hal.h"
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/**
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* @brief STM32F4 specific delay initialization
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*/
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void hal_stm32f4_delay_init(void) {
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/* Delay initialization is handled by HAL_Init() */
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}
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/**
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* @brief STM32F4 specific delay in milliseconds
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* @param ms: Delay time in milliseconds
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*/
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void hal_stm32f4_delay_ms(uint32_t ms) {
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HAL_Delay(ms);
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}
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/**
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* @brief STM32F4 specific delay in microseconds
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* @param us: Delay time in microseconds
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*/
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void hal_stm32f4_delay_us(uint32_t us) {
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uint32_t ticks = 0;
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uint32_t start_tick = 0;
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uint32_t tick_freq = HAL_RCC_GetHCLKFreq() / 1000000;
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ticks = us * tick_freq;
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start_tick = HAL_GetTick() * tick_freq;
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while ((HAL_GetTick() * tick_freq - start_tick) < ticks) {
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/* Busy wait */
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}
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}
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