• State Not Answered
  • Locked Locked
  • Replies 2 replies
  • Subscribers 21 subscribers
  • Views 1447 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

ARM: Configuration USB ports

Guillaume Le Cam

Hello,

I am working on USB applications on a STM32F207IG. The usb communication works in FS with the port PA9, PA11 and PA12, in HS with the ULPI. But I need to USE the ports PB13 (Vbus) , PB 14 (DM) and PB15 (DP). They are HS pins configured in FS mode.

Here how I configured these pins:

 RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOB, ENABLE );

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;


  //Configure VBUS DM DP Pins
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;

  GPIO_Init( GPIOB, &GPIO_InitStructure );


  GPIO_PinAFConfig( GPIOB, GPIO_PinSource13, GPIO_AF_OTG2_FS );  // vbus
  GPIO_PinAFConfig( GPIOB, GPIO_PinSource14, GPIO_AF_OTG2_FS ); // D-
  GPIO_PinAFConfig( GPIOB, GPIO_PinSource15, GPIO_AF_OTG2_FS ); // D+


  RCC_APB2PeriphClockCmd( RCC_APB2Periph_SYSCFG, ENABLE );

  RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_OTG_HS, ENABLE );

Unfortunatly, it is not working. Can you help me ?

Thank you.

0