5d08b35b54
* Interrupt manager: add memory barriers. * ISRs: remove TIM17 dead code. * API HAL Delay: rename initialization routine and move to API-HAL * Main: move FURI initialization to the start. * API HAL GPIO: drop CC1101 shenanigans, COMP inversion for new boards. * IButton: migrate Cyfral and Metakom to RFID comp routine, make it compatible with new boards. * RFID: Better keyboard handling and shutdown routines
30 lines
756 B
C
30 lines
756 B
C
#include "api-hal-delay.h"
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#include <furi.h>
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#include <cmsis_os2.h>
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static uint32_t clk_per_microsecond;
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void api_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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clk_per_microsecond = SystemCoreClock / 1000000.0f;
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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 * clk_per_microsecond;
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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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