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Hi,
I am using CCG3PA in my design, I have made some changes to send request messages to custom PDO's, I am able to send the request messages using available API's in CCG3PA API guide. When I send a request to APDO 3.3 Volts Request sending is proper. But After receiving PS_RDY from DUT(Source), CCG3PA is not responding for PS_RDY message. When I request for APDO 3.8 Volts CCG3PA is responding for PS_RDY message.
I have attached, CC line Sniffer capture also. To open the file please download the software (GRL USB Type-C™ Power Delivery Performance Analyzer (GRL-USB-PD-A1)) from link : https://graniteriverlabs.com/download-center/
It looks CCG3PA will not respond when Vbus Voltage goes below 3.7 Volts, If yes, How to handle APDO request voltage 3.3Volts in CCG3PA ?
Please, Let me know if any inputs needed.
Thanks & Regards
Prasanna
Solved! Go to Solution.
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Hi Prasanna,
There is no high level code change that can solve this problem. The PD stack needs to be modified to support APDO sink which is a heavy change and therefore will not be carried out in the near future. Some of the workarounds proposed also do not seem to be working. I request you to contact our sales team to get more support on the PD stack modification.
Regards,
Rajath
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Hi Prasanna,
Please re-attach the CC capture file that can be opened in your software.
I will take a look.
Regards,
Rajath
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Hi Rajath,
Please find the attached CC line capture.
To open the file please download the software (GRL USB Type-C™ Power Delivery Performance Analyzer (GRL-USB-PD-A1)) from link : https://graniteriverlabs.com/download-center/
If any inputs needed please let me know.
Thanks & Regards,
Prasanna
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Hi Rajath,
Were you able to open CC line capture file ? Need any inputs ?
Thanks & Regards
Prasanna
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Hi Rajath,
Any update on this ?
Thanks & Regards
Prasanna
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Hi Rajath,
Any update on this ?
Thanks & Regards
Prasanna
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Hi Prasanna,
There is no high level code change that can solve this problem. The PD stack needs to be modified to support APDO sink which is a heavy change and therefore will not be carried out in the near future. Some of the workarounds proposed also do not seem to be working. I request you to contact our sales team to get more support on the PD stack modification.
Regards,
Rajath