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i2c的SCL时序控制，可能存在SCL上升缓慢地情况，需要添加延时等待

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jonas
2023-08-01 16:48:42 +08:00
parent 851d6436a7
commit ba913a7eaf
1 changed files with 1 additions and 0 deletions
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components/drivers/i2c/i2c-bit-ops.c
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@ -50,6 +50,7 @@ static rt_err_t SCL_H(struct rt_i2c_bit_ops *ops)
goto done; goto done;
start = rt_tick_get(); start = rt_tick_get();
i2c_delay(ops);
while (!GET_SCL(ops)) while (!GET_SCL(ops))
{ {
if ((rt_tick_get() - start) > ops->timeout) if ((rt_tick_get() - start) > ops->timeout)