About ChristophR

ChristophR · 2022-06-24

Hi,We try to implement a DRP device with the USBPD library on a STM32G071 uC.From the documentation the requirements for the following functions are not clear:BSP_USBPD_PWR_VBUSOff():- Should it block until VBUS < USBPD_PWR_LOW_VBUS_THRESHOLD?- What ...

ChristophR · 2022-06-23

Hi,We use a STM32G071 with the USBPD library together with a USB-C protection IC to implement a DRP device. How should I handle a fault signalled by the protection IC? - How should I inform the USB-C PD stack about this event? - Is it sufficient to r...

ChristophR · 2022-06-23

Hi,I want to enable or disable the USB-C PD stack of my DRP device during operation. What is the right way?I tried this for disabling:USBPD_CAD_PortEnable(0, USBPD_CAD_DISABLE); USBPD_PE_Request_HardReset(0);And I tried to enable again afterwards wit...

ChristophR · 2022-06-23

Hi,Am I allowed to call the USBPD_PE_Request_CtrlMessage(), USBPD_PE_Request_HardReset(), USBPD_CAD_PortEnable() and others from different threads?I want to request data role swap, power role swap and hard resets from my interface thread.Thanks!BR, C...

ChristophR · 2022-06-23

Hi,lately I realized that there are tracer errors from the USB-C stack in STM32CubeMonitor. I haven't seen them with older version of the USBPD libraries.Currently I'm using:- FW pack STM32Cube_FW_G0_V1.5.1- USBPD core library is now V4.0.0- USBPD de...

ChristophR · 2022-08-03

Hi @Nicolas P Thanks for your response! Could you please also answer the open questions from my first post?BSP_USBPD_PWR_VBUSOn() & BSP_USBPD_PWR_VBUSSetVoltage_Fixed() in source operation:Should these functions also block until the VBUS voltage is ...

ChristophR · 2022-07-27

Hi @Nicolas P could you maybe have a look at my questions above?Thanks!Christoph

ChristophR · 2022-07-27

Hi @Nicolas P yes, that's true, we would like to disable the USB-C functionality also when doing firmware upgrades. But also in case of persistent errors detected by the the protection IC or from other hardware (e.g. overheated DCDC, too low supply ...

ChristophR · 2022-07-26

Hi @Nicolas P No, I haven't tried to modify CAD. I didn't want to edit anything outside the /* USER CODE */ sections, so that I'm always able to update the code using CubeMX.It would be great if you could try to find and validate a solution on your ...

ChristophR · 2022-07-25

Hi @Nicolas P could you please help me with the questions above?Thanks,Christoph

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Should BSP_USBPD_PWR_VBUSOff() and BSP_USBPD_PWR_VBUSOn() of the USBPD library block until the VBUS voltage is ok?

How should the USBPD stack be informed about a error from the protection IC?

What is the correct way to disable and enable the USB-C PD stack during operation?

Are the USBPD_PE_Request_*() and USBPD_CAD_PortEnable() functions of the USBPD library thread-safe?

Why do I get "ERROR with Trace_" errors from the USB-C stack in STM32CubeMonitor?

Re: Should BSP_USBPD_PWR_VBUSOff() and BSP_USBPD_PWR_VBUSOn() of the USBPD library block until the VBUS voltage is ok?

Re: Should BSP_USBPD_PWR_VBUSOff() and BSP_USBPD_PWR_VBUSOn() of the USBPD library block until the VBUS voltage is ok?

Re: What is the correct way to disable and enable the USB-C PD stack during operation?

Re: What is the correct way to disable and enable the USB-C PD stack during operation?

Re: How should the USBPD stack be informed about a error from the protection IC?