Sending Status without sending VDO

Shirly_X · ‎2025-12-30

我使用的芯片是G071RB，当我使用STM32UCPD发status，直接从FF01(PD协议的DP模式)变成0x00000，并且在抓包发现再发送的时候没有发VDO000000001，返回的数据中HPD为0，有没有大佬知道怎么解决

Translation:

I'm using the STM32G071RB MCU. When I send a status update using STM32UCPD, it jumps directly from FF01 (DP mode of the PD protocol) to 0x00000. Packet capture shows that VDO000000001 is not sent during retransmission, and HPD is 0 in the returned data. Does anyone know how to solve this?

FBL · ‎2026-01-09

Hi @Shirly_X

Would you provide more details about your software and hardware setup? If possible to attach a minimal project to debug your issue.

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Best regards,
FBL