I am working with the EVAL-ADAU1772 evaluation board. When programming from Sigma-studio it works fine. All settings are readily taken over and performance is as should be.
Unfortunately when want to start the same program from self-boot then the board does not work.
I followed all the steps:
- Connect the board with Selfboot switch S_2 to off to PC by USB-i interface.
- Connect EEprom in Sigmastudio
- Clear contents of EEPROM
- Do:"Link Compile download"
- Write latest compilation to EEPROM
I checked the EEPROM memory both after clearing, where it contained only zeros and after writing,where it contained HEX info, as should be.
Then I disconnected the board from the USB, switched S2 to Selfboot_on, then powered the board up with an external 5V source. The LED shines but no signal (only some noise) at the output of board with the same input signal. This I repeated with different settings, Supply from USB_i and resetting by grounding PD.
What do I do wrong as all hardware seems to be OK. What do I need to check.
Thanks for helping me out.