UCD9081EVM: UCD9081

Mozhdeh Nematzadeh

Part Number: UCD9081EVM
Other Parts Discussed in Thread: UCD9081

Tool/software:

Hi,

I try to read the UCD9081 Device ID of 0x55 from register 0x27, but it reports 0x00. I use a custom USBC to I2C bridge board for this purpose.

Br,

Mozhdeh

0 yihe 14 days ago

I would recommend to use TI's USB-TO-GPIO V2 dongle(https://www.ti.com/tool/USB-TO-GPIO2) to test to ensure that your design is good first.

Your host need support clock stretching and speed need be not over 100KHz.

Regards

Yihe

0 Mozhdeh Nematzadeh 9 days ago in reply to yihe

Hi, is there any TI device that does not need clock stretching? Our host does not support that!

0 yihe 9 days ago in reply to Mozhdeh Nematzadeh

You may change your host's software to support. UCD9081 need clock stretching.

Regards

Yihe

0 Mozhdeh Nematzadeh 9 days ago in reply to yihe

Our host is FT2232 which does not support clock stretching! So we want to use an other power sequencer which does not require that.

Bests,

Mozhdeh

0 yihe 9 days ago in reply to Mozhdeh Nematzadeh

All our sequencers require clock stretching. Have your checked the software team or chip vendor of FT2232 for capability of clock stretching?

Regards

Yihe

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