fix multithread logic in template app, update gpio HAL (#250)

* fix multithread logic
* more buffer for dallas id string
* update apps to use new logic
* delay_us small speedup
* add consant qualifier to gpio records and some core api
* fix some apps to use simpler method of getting gpio record
* fix ibutton app, stupid stack problem
This commit is contained in:
DrZlo13
2020-11-19 15:25:32 +03:00
committed by GitHub
parent ccd40497eb
commit a96f23af9b
24 changed files with 137 additions and 88 deletions

View File

@@ -2,15 +2,18 @@
#include "assert.h"
#include "cmsis_os2.h"
static uint32_t clk_per_microsecond;
void delay_us_init_DWT(void) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
DWT->CYCCNT = 0U;
clk_per_microsecond = SystemCoreClock / 1000000.0f;
}
void delay_us(float microseconds) {
uint32_t start = DWT->CYCCNT;
uint32_t time_ticks = microseconds * (SystemCoreClock / 1000000.0f);
uint32_t time_ticks = microseconds * clk_per_microsecond;
while((DWT->CYCCNT - start) < time_ticks) {
};
}