stm32cube, usb host, hid mouse/keyboard

[arnie1]

Posted on October 09, 2016 at 14:54

hello,

I've been trying to set up some basic usb comunication with a usb mouse using my stm32f4 discvery. there are no usb examples for my board so I went in to look at other boards. I generated a project with cube inlcuding USB_OTG_FS in host only mode and four IO pins for LED's. I had a look in the files and it seemed like reading mouse buttons would be fairly trivial, but I can't make it work. if I run [code]devtype = USBH_HID_GetDeviceType(&hUsbHostFS);[/code] it detects the device correctly. [code]USBH_HID_MouseInit(&hUsbHostFS)[/code] returns USBH_OK but no matter what I try [code]mouse=USBH_HID_GetMouseInfo(&hUsbHostFS);[/code] is always NULL ''USBH_HID_MouseInit'' is never mentioned in the documentation(DM00105256.pdf) also, only the RTOS examples use them. Reading the standalone example, it would seem that to comunicate with a mouse would be as simple as runing GetDeviceType, and GetMouseInfo, but I can't get it to work. this is all the code I added, it's executed in the main while [code]     if(Appli_state == APPLICATION_READY){     switch(state)     {     case 0:           devtype = USBH_HID_GetDeviceType(&hUsbHostFS);            if(devtype == HID_MOUSE){                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,1);                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,0);                state=1;            }            else if(devtype == HID_KEYBOARD){                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,0);                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,1);                state=2;            }            else{                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,0);                HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,0);            }     break;     case 1:         if(USBH_HID_MouseInit(&hUsbHostFS)==0){             HAL_GPIO_WritePin(GPIOD,GPIO_PIN_15,1);             state=3;         }         else {             HAL_GPIO_WritePin(GPIOD,GPIO_PIN_15,0);             state=0;         }     break;     case 3:         mouse=USBH_HID_GetMouseInfo(&hUsbHostFS);         if(mouse != NULL)HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,1);         else HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,0);     break;     default:         break;     }     }     if(Appli_state != APPLICATION_READY) state=0; [/code]

[Amel NASRI]

Posted on October 11, 2016 at 15:53

Hi nurd,

If you start from the example STM32Cube_FW_F4_V1.13.0\Projects\STM324xG_EVAL\Applications\USB_Host\HID_Standalone, then comment all board specific features, you should be able to run the example on your discovery board.-Mayla-

[ngo duong]

Posted on September 22, 2017 at 00:27

sorry, I have the same problem. I try to use stm32cube to configure usb host hid for communication with usb mouse but it's not work.

Please help me.

[wwmentz]

Posted on November 14, 2017 at 17:03

I run 4 examples in STM32F746G-DISCO,  with RTOS, and standalone. The example that I run is the ones provided by st, without any modifications, and it didn't work.

[wwmentz]

Posted on November 14, 2017 at 17:15

I have also tested it on a custom board (stm32f401), and the same problem. It can comunicate with a microsoft keyboard, but when I plug a cheaper keyboard (leadership and other brands, chinese keyboards), it starts the keyboard, and disconects, I'm sure the keyboard works, and also STM32F746G-DISCO is supossed to work properly (works with microsoft keyboard). I'm compiling with sw4stm32.

[erisson]

I think you need two basic functions: MX_USB_HOST_Init() and MX_USB_HOST_Process();

[code]

int main(void)

{

[...]

 MX_USB_HOST_Init();

while (1)

{

 MX_USB_HOST_Process();

if(Appli_state == APPLICATION_READY)

{

[...]

}

}

}

[/code]

In addition to enabling VBUS

[code]

/**

 * @brief Drive VBUS.

 * @param phost: Host handle

 * @param state : VBUS state

 *     This parameter can be one of the these values:

 *      0 : VBUS Active

 *      1 : VBUS Inactive

 * @retval Status

 */

USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state)

{

 /* USER CODE BEGIN 0 */

 /* USER CODE END 0*/

 if (phost->id == HOST_FS)

 {

  if (state == 0)

  {

   /* Drive high Charge pump */

   /* ToDo: Add IOE driver control */

   /* USER CODE BEGIN DRIVE_HIGH_CHARGE_FOR_FS */

HAL_GPIO_WritePin(OTG_PWR_OUT_GPIO_Port, OTG_PWR_OUT_Pin, GPIO_PIN_SET);

   /* USER CODE END DRIVE_HIGH_CHARGE_FOR_FS */

  }

  else

  {

   /* Drive low Charge pump */

   /* ToDo: Add IOE driver control */

   /* USER CODE BEGIN DRIVE_LOW_CHARGE_FOR_FS */

HAL_GPIO_WritePin(OTG_PWR_OUT_GPIO_Port, OTG_PWR_OUT_Pin, GPIO_PIN_RESET);

   /* USER CODE END DRIVE_LOW_CHARGE_FOR_FS */

  }

 }

 HAL_Delay(200);

 return USBH_OK;

}

[/code]

I'm reading the values ​​but I do not know how to interpret them.

[AAgha]

Hi engenharia4

can you tell me about your microsoft keyboard details!?

i run the code like above with microsoft curve 3000 keyboard but i cant get data form that and always return NULL!

I would appreciate for your answer

[wwmentz]

HI,

Take a look at this,

https://community.st.com/s/question/0D50X00009XkZ4KSAV/usb-host

https://community.st.com/s/question/0D50X00009XkeVgSAJ/stm32cubef4-applications-usb-host-hid-device-issue

for me, it was the answer,

I have followed changes proposed by @tsuneo​ , and got all keyboards working.

hope this helps.

Att.

[AAgha]

thanks for your reply

you just exchange the HID_Handle->state = HID_IDLE; with HID_Handle->state = HID_SYNC;

then keyboards start to communicate?!

in my case it doesnt work, can you share your code!?

regards

[wwmentz]

code at main. c:

   extern USBH_HandleTypeDef hUsbHostFS;

   extern HID_KEYBD_Info_TypeDef    keybd_info;

   unsigned int output=0;

   if(USBH_HID_GetDeviceType(&hUsbHostFS)==0x02)

   {

      output=USBH_HID_GetRAWCode(USBH_HID_GetKeybdInfo(&hUsbHostFS));

   }

code at usb_hid.c:

/**

 * @brief USBH_HID_Process

 *        The function is for managing state machine for HID data transfers

 * @param phost: Host handle

 * @retval USBH Status

 */

static USBH_StatusTypeDef USBH_HID_Process(USBH_HandleTypeDef *phost)

{

 USBH_StatusTypeDef status = USBH_OK;

 HID_HandleTypeDef *HID_Handle = (HID_HandleTypeDef *) phost->pActiveClass->pData;

 switch (HID_Handle->state)

 {

 case HID_INIT:

   HID_Handle->Init(phost);

   HID_Handle->state = HID_SYNC;   // skip HID_IDLE state

   break;

 case HID_IDLE:

   if(USBH_HID_GetReport (phost,

                          0x01,

                           0,

                           HID_Handle->pData,

                           HID_Handle->length) == USBH_OK)

   {

     fifo_write(&HID_Handle->fifo, HID_Handle->pData, HID_Handle->length); 

     HID_Handle->state = HID_SYNC;

   }

   break;

 case HID_SYNC:

   /* Sync with start of Even Frame */

   if(phost->Timer & 1)

   {

     HID_Handle->state = HID_GET_DATA;

   }

#if (USBH_USE_OS == 1)

   osMessagePut ( phost->os_event, USBH_URB_EVENT, 0);

#endif  

   break;

 case HID_GET_DATA:

   USBH_InterruptReceiveData(phost,

                             HID_Handle->pData,

                             HID_Handle->length,

                             HID_Handle->InPipe);

   HID_Handle->state = HID_POLL;

   HID_Handle->timer = phost->Timer;

   HID_Handle->DataReady = 0;

   break;

 case HID_POLL:

   if(USBH_LL_GetURBState(phost , HID_Handle->InPipe) == USBH_URB_DONE)

   {

     if(HID_Handle->DataReady == 0)

     {

       fifo_write(&HID_Handle->fifo, HID_Handle->pData, HID_Handle->length);

       HID_Handle->DataReady = 1;

       USBH_HID_EventCallback(phost);

#if (USBH_USE_OS == 1)

   osMessagePut ( phost->os_event, USBH_URB_EVENT, 0);

#endif         

     }

   }

   else if(USBH_LL_GetURBState(phost , HID_Handle->InPipe) == USBH_URB_STALL) /* IN Endpoint Stalled */

   {

     /* Issue Clear Feature on interrupt IN endpoint */

     if(USBH_ClrFeature(phost,

                        HID_Handle->ep_addr) == USBH_OK)

     {

       /* Change state to issue next IN token */

       HID_Handle->state = HID_GET_DATA;

     }

   }

   break;

 default:

   break;

 }

 return status;

}