bdba15b366
* iButton: getting started on the worker concept * Hal delay: added global instructions_per_us variable * iButton: one wire slave * iButton: ibutton key setter * iButton: one wire host, use ibutton_hal * iButton\RFID: common pulse decoder concept * iButton: cyfral decoder * iButton: worker thread concept * iButton: metakom decoder * iButton: write key through worker * iButton: worker mode holder * iButton: worker improvements * iButton: Cyfral encoder * iButton: Metakom encoder * lib: pulse protocol helpers * iButton: Metakom decoder * iButton: Cyfral decoder * iButton worker: separate modes * iButton: libs documentation * HAL: iButton gpio modes * iButton worker: rename modes file * iButton worker, hal: move to LL * iButton CLI: worker for reading and emulation commands * iButton HAL: correct init and emulation sequence * iButton cli: moved to plain C * iButton: move to worker, small step to plain C * Libs, one wire: move to plain C * Libs: added forgotten files to compilation * iButton writer: get rid of manual disable/enable irq
36 lines
863 B
C
36 lines
863 B
C
#include "furi_hal_delay.h"
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#include <furi.h>
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#include <cmsis_os2.h>
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#define TAG "FuriHalDelay"
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uint32_t instructions_per_us;
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void furi_hal_delay_init(void) {
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CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
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DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
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DWT->CYCCNT = 0U;
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instructions_per_us = SystemCoreClock / 1000000.0f;
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FURI_LOG_I(TAG, "Init OK");
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}
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void delay_us(float microseconds) {
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uint32_t start = DWT->CYCCNT;
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uint32_t time_ticks = microseconds * instructions_per_us;
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while((DWT->CYCCNT - start) < time_ticks) {
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};
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}
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// cannot be used in ISR
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// TODO add delay_ISR variant
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void delay(float milliseconds) {
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uint32_t ticks = milliseconds / (1000.0f / osKernelGetTickFreq());
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osStatus_t result = osDelay(ticks);
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(void)result;
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furi_assert(result == osOK);
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}
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uint32_t millis(void) {
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return HAL_GetTick();
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}
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