HID mouse doesn't move

[pass3master]

We are trying to move the mouse cursor using HID.
However, the mouse cursor does not move even though it is USBD_OK in the USBD_HID_SendReport.
Why doesn't it work?

[IDE]STM32CubeIDE 1.14.0

Connectivity -> USB_OTG_FS -> [Mode]Device_Only

Middleware -> USB_DEVICE -> [Class For FS IP]HID

[board]​ NUCLEO-F446RE

[Our code]

typedef struct
{
 int8_t buttons;
 int8_t x;
 int8_t y;
 int8_t wheel;
} Mouse;
Mouse mouse_status = {0};

uint32_t before_time[sizeof(Mouse) / sizeof(int8_t)] = {0};
extern USBD_HandleTypeDef hUsbDeviceFS;

int main(void)
{
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* Configure the system clock */
SystemClock_Config();

/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART2_UART_Init();
MX_USB_DEVICE_Init();
USBD_HID.Init(&hUsbDeviceFS,0);
/* Infinite loop */
while (1)
{
//送信
mouse_status.x = 1;
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t *)&mouse_status, sizeof(Mouse));
HAL_Delay(1000);
}

(Edited to format the code)

[mƎALLEm]

Hello,

 

uint8_t HID_Buffer[4];

HID_Buffer[0] = 0;
HID_Buffer[1] = x++;
HID_Buffer[2] = y++;
HID_Buffer[3] = 0;
USBD_HID_SendReport(&USBD_Device, HID_Buffer, 4);

 

Where x is the abscissa and y is the coordinate of the cursor. 

You need to change x and /or y to let the cursor move.

In your code x is constant and equal to 1.

[mƎALLEm]

I can send you a project if you want that makes the cursor moves on your PC screen but done around an F7 device. But still the same implementation.

[Andrew Neil]

Use this button to properly post source code:

 

To get that extra row of icons, press this button:

[mƎALLEm]

Need to move this button to the list on the top. Since this one is hidden we always face the same issue on the community :)

[Andrew Neil]

---

@mƎALLEm wrote:

Need to move this button to the list on the top. 

---

The change has, apparently, been requested: 

https://community.st.com/t5/feedback-forum/formatting-code-should-be-easier/m-p/633246/highlight/true#M955

Whether that will help people to use it remains to be seen ...