diff options
| author | wdfk-prog <[email protected]> | 2022-12-22 16:46:15 +0800 |
|---|---|---|
| committer | Man, Jianting (Meco) <[email protected]> | 2022-12-22 21:18:29 -0500 |
| commit | db6ee55379aae1a4b2cad5b7cab4d5891334db79 (patch) | |
| tree | dbbd0c3271312469da8bc1b7410d99472d855b62 | |
| parent | 262392a69c4db4e61915c2b4666d7327affdcf5e (diff) | |
[STM32][common]更新rt_hw_us_delay函数,以支持设置更高延时
* 未判断设置延时数是否会溢出
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_common.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_common.c b/bsp/stm32/libraries/HAL_Drivers/drv_common.c index 0dfffda874..dcf002dcc0 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_common.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_common.c @@ -133,11 +133,11 @@ void _Error_Handler(char *s, int num) */ void rt_hw_us_delay(rt_uint32_t us) { - rt_uint32_t ticks; + rt_uint64_t ticks; rt_uint32_t told, tnow, tcnt = 0; rt_uint32_t reload = SysTick->LOAD; - ticks = us * reload / (1000000 / RT_TICK_PER_SECOND); + ticks = us * (reload / (1000000 / RT_TICK_PER_SECOND)); told = SysTick->VAL; while (1) { |