1 ACCEPTED SOLUTION
Accepted Solutions
Ok, so I switched back to the example HID-device from STM32CubeIDE, but the mouse still doesn't work.
The codebase itself is rather small, the main function (using the mouse, doesn't work):
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART1_UART_Init();
MX_USB_DEVICE_Init();
struct keyboard_report_t
{
uint8_t report_id;
uint8_t modifier;
uint8_t reserved;
uint8_t keycode[6];
};
struct mouse_report_t
{
uint8_t report_id;
uint8_t buttons;
int8_t x;
int8_t y;
};
struct keyboard_report_t keyboard;
struct mouse_report_t mouse;
while (1)
{
mouse.report_id = 0x02;
mouse.buttons = 0b00000000;
mouse.x = -10;
mouse.y = 10;
size_t res = USBD_HID_SendReport(&hUsbDeviceFS,&mouse,sizeof(mouse));
HAL_Delay(50);
// transmit part start (logs via uart console)
uint8_t message[35] = {'\0'};
switch(res){
case USBD_STATE_DEFAULT:
sprintf(message, "USBD_STATE_DEFAULT\r\n");
break;
case USBD_STATE_ADDRESSED:
sprintf(message, "USBD_STATE_ADDRESSED\r\n");
break;
case USBD_STATE_CONFIGURED:
sprintf(message, "USBD_STATE_CONFIGURED\r\n");
break;
case USBD_STATE_SUSPENDED:
sprintf(message, "USBD_STATE_SUSPENDED\r\n");
break;
default:
sprintf(message, "Nothing found: %d\r\n", res);
}
HAL_UART_Transmit(&huart1, message, sizeof(message), 100);
// transmit part end
}
}
And simulating a keyboard (works):
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART1_UART_Init();
MX_USB_DEVICE_Init();
struct keyboard_report_t
{
uint8_t report_id;
uint8_t modifier;
uint8_t reserved;
uint8_t keycode[6];
};
struct mouse_report_t
{
uint8_t report_id;
uint8_t buttons;
int8_t x;
int8_t y;
};
struct keyboard_report_t keyboard;
struct mouse_report_t mouse;
while (1)
{
keyboard.report_id = 0x01;
keyboard.modifier = 0x00;
keyboard.reserved = 0x00;
keyboard.keycode[0] = 0x05;
keyboard.keycode[1] = 0x00;
keyboard.keycode[2] = 0x00;
keyboard.keycode[3] = 0x00;
keyboard.keycode[4] = 0x00;
keyboard.keycode[5] = 0x00;
size_t res = USBD_HID_SendReport(&hUsbDeviceFS,&keyboard,sizeof(keyboard));
HAL_Delay(50);
// transmit part start
uint8_t message[35] = {'\0'};
#define USBD_STATE_DEFAULT 0x01U
#define USBD_STATE_ADDRESSED 0x02U
#define USBD_STATE_CONFIGURED 0x03U
#define USBD_STATE_SUSPENDED 0x04U
switch(res){
case USBD_STATE_DEFAULT:
sprintf(message, "USBD_STATE_DEFAULT\r\n");
break;
case USBD_STATE_ADDRESSED:
sprintf(message, "USBD_STATE_ADDRESSED\r\n");
break;
case USBD_STATE_CONFIGURED:
sprintf(message, "USBD_STATE_CONFIGURED\r\n");
break;
case USBD_STATE_SUSPENDED:
sprintf(message, "USBD_STATE_SUSPENDED\r\n");
break;
default:
sprintf(message, "Nothing found: %d\r\n", res);
}
HAL_UART_Transmit(&huart1, message, sizeof(message), 100);
// transmit part end
keyboard.keycode[0] = 0x00;
res = USBD_HID_SendReport(&hUsbDeviceFS,&keyboard,sizeof(keyboard));
HAL_Delay(50);
}
}
The descriptor including and its length are written into usbd_custom_hid.c. Rest of the code is the generated one from STM32CubeIDE. When using the mouse-code from above, no interaction:
- Descriptor with both keyboard ANDmouse: only keyboard example works
- Descriptor with mouse OR keyboard: the specified device works
I've also attached the project's code as a 7z-file.
