PD3.1 EPR sniffing on STM32G071B-DISCO

[ey_it]

Hi all,

Could anyone advise the current status of EPR support on the UCPD software? Thanks.

Best Regards

EY

[LLECH.1]

Hello Ey,

The STM32G071B-DISCO  doesn't have the necessary hardware equipment to support EPR.

Best Regards,

Lucas

[LLECH.1]

Hello,

By "doesn't have the necessary hardware equipment" I mean that STM32G071RB-DISCO can support up to 26V. Beyond this value you could damage the device.

 

Best Regards

[ey_it]

Dear Lucas,

Many thanks for following up my query. I was aware of the 26V limit but still would like to know whether EPR voltages below 26V would be supported (in my case it’s 24V with AVS). If not could I do such PD3.1 sniffing with ST TCPP evaluation kits?

 

Thanks again for your help.

Best Regards

Edwin

[LLECH.1]

Hello Ey,

Unfortunately EPR voltages below 26V are not supported either since software don't handle it. To detect EPR voltages, STM32G071RB-DISCO must ask for EPR source capabilities which it doesn't. Thus, you won't be able to detect EPR voltages.

Br,

Lucas