USB HOST stopped detecting the PT1 (stm32f411ce) over the USB bus

[mikemendel]

Posted on June 18, 2016 at 11:36

Hello

Regarding STM32Cube USB device library .

I am using the stm32f411ce micro with the PT1 device.

I have noticed that after downloading the elf file via stlink the to the PT1 device the USB host stopped to detect him over the the USB bus.

After some debugging I am getting at the HAL_PCD_IRQHandler() function at the stm32f4xx_hal_pcd.c file .

first I entered to __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS); meaning incorrect mode , what's that means , what is wrong here.

second the USB HOST trying to do

HAL_PCD_SuspendCallback(hpcd);MEANING the PT1 is in SUSPEND MODE.

and than __HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE)

meaning Handle Enumeration done Interrupt.

How could I debug it.

Regards,

  Mike M. #usb #device #stm32

[slimen]

Posted on June 23, 2016 at 15:28

Hi

It will be better to followone only thread for the same subject. So, putting responses in the other

https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB%20HOST%20stopped%20detecting%20the%20PT1%20%28stm32f411ce%29%20over%20the%20USB%20bus&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580...

. Regards