Hi,
We use the MSP430 launchpad to work with TCA8424 EVM.
Depending on the operating manual. (scdu004_TCA8424_StartUserGuide.pdf)
Successful load source, and "run -> debug" code downloaded to the launch pad.
Then we execute PC-side GUI program in accordance with the manual. (TCA8424 GUI)
And set TCA8424 LED lights. But TCA8424 EVM board LED nothing happens.
Try other key operations are also no reaction, only the pop-up: [I2C NACK was received].
Press the "Get Report" or "read the report", but nothing happens.
How do we confirm "launching pad" have the right to burn the firmware (load OTP did not respond), and do the relevant checks?
Thank you!