Configuring CCG3PA to respond with NAK for VDMs(DiscID, DiscSVID....)

Announcements

Live Webinar: USB-C adoption. Simple & Cost-efficient solutions | April 18th @9am or 5pm CEST. Register now !

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
PrRe_3492461
Level 4
Level 4
First like received 50 sign-ins 50 replies posted

Hello All / RajathB_01,

I've to configure ccg3pa to respond with NAKs for DiscID packets initiated by the DUT.

Is it possible to do in Ez-PD configuration utility or Do we need to tweak the ccg3pa SrcCode ?

If so can anyone help me with the steps to respond with NAK for VDM packets .

Thanks in Advance!

Regards,

Pranay.

0 Likes
1 Solution

Hi Pranay,

Please edit the SVID Configuration option which is used by the device to respond to VDMs. If there are no SVIDs in your configuration, device should respond with a NAK to Discover SVIDs packet.

However, as mentioned, there will be an ACK by default to Discover Identity packet since it will report the support for structured VDMs. To change this, we need to modify the source code. Please let us know your complete application and your requirement for NAKs before we look into the code.

Best Regards,

Sananya

View solution in original post

0 Likes
3 Replies