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

2023-08-01 16:48:42 +08:00
parent 851d6436a7
commit ba913a7eaf
1 changed files with 1 additions and 0 deletions
--- a/components/drivers/i2c/i2c-bit-ops.c
+++ b/components/drivers/i2c/i2c-bit-ops.c
@ -50,6 +50,7 @@ static rt_err_t SCL_H(struct rt_i2c_bit_ops *ops)
        goto done;

    start = rt_tick_get();
+    i2c_delay(ops);
    while (!GET_SCL(ops))
    {
        if ((rt_tick_get() - start) > ops->timeout)