Tool/software:
if the board is just for monitoring or not?
because i want to communicate with the chip instead of the GUI
i want to communicate with the chip through SPI pins founded on j4 pin header
and the controller from my side is TMS320F280039c launchpad, and the chip not responding and always gives 0xFF,
i followed the valid frame and valid clock and the issue still there
Hello Mohamed,
Thanks for posting in this forum.
i want to communicate with the chip through SPI pins founded on j4 pin header
and the controller from my side is TMS320F280039c launchpad, and the chip not responding and always gives 0xFF,
I assume you removed all the 0 Ω resistors between the onboard MCU and the header to isolate the DRV8703-Q1 driver device. See below snippet.
If you disconnected the 0 Ω for the 3.3 V supply you must provide 3.3 V to this header pin. This is required for SDO pull-up resistor see below snippet of the schematic. Also the device must be awake for SPI communication, nSLEEP must be 3.3 V.
With these proper inputs the TMS320F280039c launchpad should be able to communicate with the device with no issue. Thanks.
Regards, Murugavel
