unleashed-firmware/firmware/targets/f2/api-hal/api-hal-delay.c
DrZlo13 979af6c165
Core code cleanup (#206)
* add delay function
* todo about delay_isr
* remove arduino defines and fix all apps to use core-api/hal-api
* delay for local target
* remove warnings of task_equal
* fix BSP_SD_Init
* fix USBD_static
* grio read constant pointer to gpio
* add TODO about ISR context
* const void* arg for pubsub api
* mark unused functions
* app pointers now pointed to constant apps
* fix printf format
* fix "unused" warnings in local target
* fix const pin read in local target
* fix int to pointer warnings in local target
* power read mutex error fix
* delete old makefile
* add -werror

Co-authored-by: Aleksandr Kutuzov <aku@plooks.com>
Co-authored-by: aanper <mail@s3f.ru>
2020-10-29 10:58:19 +03:00

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C

#include "api-hal-delay.h"
#include "assert.h"
#include "cmsis_os2.h"
void delay_us_init_DWT(void) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
DWT->CYCCNT = 0U;
}
void delay_us(float microseconds) {
uint32_t start = DWT->CYCCNT;
uint32_t time_ticks = microseconds * (SystemCoreClock / 1000000.0f);
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);
assert(result == osOK);
}