Other Parts Discussed in Thread: BQ79616
Tool/software:
Hello I am using custom-made bq7900 board. I would like to read the part ID of the device. below is my sequence
1. Send Wake ping ( : I see that dvdd=1.8V, VDD=5.0V)
2. send these 0x80, 0x00, 0x02, 0x21, 0x20, 0x02, 0xD6, 0x68 ( part id of device )
Can you please confirm the CRC bytes and frame format.?
I am not receiving a response from bq79600
Comments about my circuit:
1. I connected INH directly to BAT
2. using a 3.3V MCU
3. tried with TX,RX 10k pullup to 3.3V, ( tried all 3 scenarios ),RINH - 100k is not place on device, 10R resistors are shorted with small wire. Please check schematics
Please suggest me what should be done to receive data from device