About Colin Cina

Colin Cina · 2018-07-02

Posted on July 02, 2018 at 09:50Hi everyone ! I am currently trying to write a custom usb class driver to support a webcam. I am using the STM32F769 Discovery boark and the STM32CubeF7 firmware. After the first steps of enumeration and initialisatio...

Colin Cina · 2018-07-12

Posted on July 12, 2018 at 16:03Yes but still you test the phost->timer which is incremented by the SOF interrupt in order to go on with further transfers. My question was : do you know why at a certain point those interrupts stop happening?

Colin Cina · 2018-07-12

Posted on July 12, 2018 at 14:41Hey thanks a lot for the example! I noticed that you don't make use of the SOF process call back in order to schedule the USBH_IsocReceiveData requests. Isn't that mandatory ? I'm asking this because that's how I inte...

Colin Cina · 2018-07-11

Posted on July 11, 2018 at 15:04Hi all, I have a similar issue with a F7 series. My UVC device driver crashes when trying to perform a USB OUT transfer involving a Data stage, thus using the DMA. It used to work before I integrated RTOS into this pr...

Colin Cina · 2018-07-09

Posted on July 09, 2018 at 10:13Hi all, I also ran into a similar problem while using the RTOS together with custom USB Host class driver. I noticed that the enumeration of the device could no be performed because the USBH_Core state machine never r...

Colin Cina · 2018-07-06

Posted on July 06, 2018 at 17:23I guess that doesn't change the behavior of the program, but I took your example of the process state machine ( where the isocReceiveData() calls are made) Kind regards Colin CinaPS : this comment belongs with the one...

User statistics

User Activity

USB HS Data Out transfer with DMA

Re: Please help me !! Problems with IsocReceiveData

Re: Please help me !! Problems with IsocReceiveData

Re: STM32F4 USB DMA fault AHBERR with buffer destination in RAM Area 0x10000000

Re: HAL_HCD_IRQHandler only happens once

Re: Please help me !! Problems with IsocReceiveData