reflow-oven-control-sw/stm-firmware/systick.c

41 lines
855 B
C

#include <reflow-controller/systick.h>
#include <stm32/stm32f4xx.h>
#include <cmsis/core_cm4.h>
volatile uint32_t wait_tick_ms;
volatile uint64_t global_tick_ms;
void systick_setup(void)
{
/* Setup Systick for 1ms tick @ 168 MHz Clock Speed */
SysTick_Config(SYSTICK_RELOAD);
}
/**
* @brief Wait for x milliseconds
*
* This function is not reentrant and must not be called from an interrupt
*
* @warning Do not use in interrupt context
* @param ms wait time in ms
*/
void systick_wait_ms(uint32_t ms)
{
wait_tick_ms = 0UL;
while (wait_tick_ms < ms);
}
/**
* @brief Interrupt Handler for SysTick
*
* This handler is called every millisecond
*
* @warning For calling cyclic functions use separate timers/flags and don't spoil this function
*/
void SysTick_Handler()
{
/* Increase tick counters */
wait_tick_ms++;
global_tick_ms++;
}