大家好,
uboot中i2c的读写默认为下降沿触发 SDA数据发生改变,如果更改为低电平,SDA数据发生改变。i2c默认协议也是时钟低电平时,SDA数据发生改变,请教各位大神支持
Shine:
这个是固定的
The data on the SDA line must be stable during the high period of the clock. The high and low states of the data line can only change when the clock signal on the SCL line is LOW.
www.ti.com/…/spruh73p.pdf
user5849257:
回复 Shine:
TI默认不是低电平,默认是下降沿