unleashed-firmware/firmware/targets/f3/api-hal/api-hal-delay.c
あく 76e3fd3060
Firmware, Bootloader: add f3 target. ()
* Firmware, Bootloader: add f3 target. Refactor code to be portable across targets.
* Firmware: remove bkpt
* Makefile: debug agent. Debug: f3 platform throw openocd.
* freertos-openocd helper
* separate hal resources
* return of input_dump app
* using hew target resources abstration layer for backlight and blink
* dirty hack for input driver, f3 has no charging pin
* worked input interrupts
* working display
* F3: switch to 32mHz resonator
* F3: configure SD_CS pin
* NFC: port to F3.
* fat uart app
* sd card hal api
* separate CC1101 spi config
* faster spi gpio for sd card
* Assets: disable LFS
* Cube: disable css on LSE
* Input: format code
* Make: add bootloader source code to formatting rule
* F3: enable rf by default, adjust clock settings, map all pins where they should be.
* libs for coreglitch_demo_0
* nvic priority
* bus clocks all to 64
* lf-rfid timer and pin
* irda
* ir rx setup
* tim2 irq handler
* Makefile: environment aware mkdir
* Makefile, Irukagotchi: commit seq number.
* split falling and rising ir rx events
* Makefile: proper git branch detect on old git. Firmware: api fix.
* fix irda
* Makefile,Irukagotchi: date timestamp.
* NFC: adjust SPI speed
* Irukagotchi: format code
* Make: add blackmagic debug in host mode
* Makefile: detach blackmagic from terminal signals
* Makefile,Irukagotchi: stamp target
* add F3 bootloader/firmware to CI

Co-authored-by: Aleksandr Kutuzov <aku@plooks.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
Co-authored-by: aanper <mail@s3f.ru>
2020-11-06 13:52:50 +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);
}