BQ25713EVM-017: Can't not use i2c read registers of bq25713

Gary Jiang

Part Number: BQ25713EVM-017

I tried to read a register status like Charger Current register through i2c MSPM00L1306. But it can only read the information of its MSB.

My codes first write the Charger Current Register 0x103E, and I can see the charge current is right. Then I tried to read the Charger Current register, the value has been read is wrong.

It can only read the information of its MSB, even I give the address LSB.

over 2 years ago

0 Jacob Rook over 2 years ago

TI__Intellectual 1805 points

Hi Gary,

Can you verify that you are following the read/write rules stated in section 9.5 of the datasheet?

Kind Regards,

Jacob

0 Gary Jiang over 2 years ago in reply to Jacob Rook

TI__Intellectual 980 points

My problem has been solved, it should send as TX for the first time and RX for the second time

0 Jacob Rook over 2 years ago in reply to Gary Jiang

TI__Intellectual 1805 points

Hi Gary,

Thank you for confirming that your problem has been solved. I will go ahead and close this thread.

Best Regards,

Jacob

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BQ25713EVM-017: Can't not use i2c read registers of bq25713