PP-SALB-EVM - Device Enumerating as DFUUSB

Michael Questo

Audio Champs,

I'm working through the smart amp charecterization process using the PP-SALB-EVM and the first thing that i noticed is that the USB-Lock LED Light did not illuminate when I power on the device (USB only). I also noticed that the device enumerated as a "DFUUSB" device in the Device Manager under Universal Serial Bus Controllers (Win7 64bit).

I beleive the device is in some sort of boot loader mode. It enumerates as such regardless if the DFU jumper is populated or not.

http://www.ti.com/tool/pp-salb-evm

Thanks for your help ahead of time!

over 8 years ago

0 J- over 8 years ago

TI__Mastermind 46195 points

Michael,

This was not supposed to happen. Where did you get the Learning Board from?

You can revive the board following the steps here: https://e2e.ti.com/support/data_converters/audio_converters/w/design_notes/2790.how-to-revive-a-usb-audio-evm

Use the firmware files from SLOC305 above.

Regards,

Jorge

0 Michael Questo over 8 years ago in reply to J-

TI__Expert 6000 points

Jorge,

I was able to reflash the device using your instructions and now the USB Lock light illuminates and the device enumerates as a "USB-AudioEVM" under the Sound, video and game controllers.

I left the DFU jumper attached and flashed the device with the "USB-AudioEVM0354_AnyRate.BIN". Let me know if I should have used an alternative image.

Thanks!