[quote user="Phil Beard"]Hi Park,
Without a ground connection between the CC260STK board and the DRV8830 board there isn't a complete circuit for the I2C communication.
Unplug the USB power from the CC260STK board.
In your picture supplied the Blue wire connected to the CC260STK should be the GND connection for that board. Try connecting the blue wire to the black test point labeled GND on the bottom front of the EVM.
Make sure the motor is connected to the DRV8830 EVM.
After making this connection power on the DRV8830EVM then plug in the USB cable to the CC260STK board.
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hi Phil Beard
Thank you
As was your advice. But it was not working.
1. Do I need special settings such as open pins?
2. Pin and sensor initiation process, I would like to know what made.
3. The slave address of the driver drv8830 not checked when debugging.
This is the content of the add watch 1 in IAR.
The SENSOR_SELECT () in the drv8830.c a slave address that appears when a break point.
It comes out 0xC8 is thought to normal, but did not.
I look forward to your kind reply
Thank you!!