I2C 調試記錄之——無應答 （ACK） 訊號

Author：DriverMonkey

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以下是我的調試日誌，目前無應答訊號的原因未明

 

I have tried to use MCU to control the active Probes(ZS1000) by writing Regsiter(0x46).
When write the I2C register(0x46) , there is no ACK signal come back to MCU(see following picture
).

 

I have tested writing Regsiter(0x46) onWave
Runner 640zi, as you told me before.

It's very odd. The Wave Runner 640zistill can write  and read data from the Regsiter(0x46
for writing, 0x47 for reading) ,without any active probe plugging in.