TLV320DAC3100EVM-U: TLV320DAC3100EVM-U

Bruce Doan

Prodigy 210 points

Part Number: TLV320DAC3100EVM-U

My EVM board has stopped working.

Windows device manager shown unknown device.
The TAS1020 device is not available.

How do I repair this condition?

How do I determine if the TAS1020 is damaged of if the EEPROM is corrupted?

over 2 years ago

0 Ivan Salazar over 2 years ago

TI__Guru** 111175 points

Hi Bruce.

Can you try by shorting the SDA and SCL pins before powering up the EVM, and check if the PC recognizes the board as DFU device? If this works, you may follow these instructions: (+) [FAQ] TLV320AIC CODECS and ADCs: How to restart / revive a USB Audio EVM - Audio forum - Audio - TI E2E support forums

Otherwise, the EVM may have got damaged. You should check all power supplies, perhaps one of these is no longer working.

Best refgards,
-Ivan Salazar
Applications Engineer

0 Bruce Doan over 2 years ago in reply to Ivan Salazar

Prodigy 210 points

I checked the 3.3V and 1.8V supplies.
Windows still sees unknown device.

If I replace the TAS1020, should that fix it?

0 Ivan Salazar over 2 years ago in reply to Bruce Doan

TI__Guru** 111175 points

Hi Bruce,

It seems like TAS1020 could be damaged so you can try replacing it, although I can't know for sure if replacing it will work. If possible I would suggest using a new EVM instead.

Best regards,
-Ivan Salazar
Applications Engineer