About Cagatay

Cagatay · 2023-02-28

I am using STM32G071 for my USB PD application. I have one dual role port(default sink) and one sink port for charger. When I attach charger I change the role of drp from sink to source. But hub chip in the application gets disconnected when I change...

Cagatay · 2023-02-19

I have STM32G071 MCU to control a USB Type C hub and I want to use VBUS Powered sink in the application. I have connected Dead Battery pins to their respected CCx pins. It supposed to act as a sink when there is no power but when I connect the type c...

Cagatay · 2023-02-28

Also my notification function never gives USBPD_NOTIFY_STATE_SNK_READY event or I could not see it. I use normal debug I do not use STM32CubeMonitor-UCPD because my application does not have UART to trace feature.

Cagatay · 2023-02-28

When I use the functions you have mentioned, it gives me USBPD_ERROR status. Sometimes it gives USBPD_OK status but nothing changes for USBPD_DPM_RequestDataRoleSwap after asserting Rp with USBPDM1_AssertRp(0); function. If I try to use USBPD_DPM_Req...

Cagatay · 2023-02-28

It was not a standard cable. We designed a flat Type-C cable for an application but we did not consider that it must have only one CC line.

Cagatay · 2023-02-28

I have solved the problem. From the source device, two cc lines are simultaneously powered and it confuses the cc lines of the MCU. When one of the cc lines are cut off, It worked.

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STM32G071 USB PD dual role port data disconnects when changing from sink to source

STM32G071 UCPD Dead Battery pins does not work.

Re: STM32G071 USB PD dual role port data disconnects when changing from sink to source

Re: STM32G071 USB PD dual role port data disconnects when changing from sink to source

Re: STM32G071 UCPD Dead Battery pins does not work.

Re: STM32G071 UCPD Dead Battery pins does not work.