flipperzero-firmware/firmware/targets/f7/furi-hal/furi-hal-delay.c
Anna Prosvetova 558fa5670b
RPC: Add Virtual Display & Unify log tags (#814)
* RPC: Update protobuf sources
* RPC: Add Virtual Display
* Unify log tags
* RPC: Virtual Display placeholder
* Rpc: clear frame buffer callback before confirm.
* Firmware: full assert for hal, move fatfs initialization to furi hal.
* FuriHal: VCP optimizations, thread safe console. Rpc: adjust buffer sizes.

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-11-12 16:04:35 +03:00

37 lines
870 B
C

#include "furi-hal-delay.h"
#include <furi.h>
#include <cmsis_os2.h>
#define TAG "FuriHalDelay"
static uint32_t clk_per_microsecond;
void furi_hal_delay_init(void) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
DWT->CYCCNT = 0U;
clk_per_microsecond = SystemCoreClock / 1000000.0f;
FURI_LOG_I(TAG, "Init OK");
}
void delay_us(float microseconds) {
uint32_t start = DWT->CYCCNT;
uint32_t time_ticks = microseconds * clk_per_microsecond;
while((DWT->CYCCNT - start) < time_ticks) {
};
}
// cannot be used in ISR
// TODO add delay_ISR variant
void delay(float milliseconds) {
uint32_t ticks = milliseconds / (1000.0f / osKernelGetTickFreq());
osStatus_t result = osDelay(ticks);
(void)result;
furi_assert(result == osOK);
}
uint32_t millis(void){
return HAL_GetTick();
}