Posted on June 01, 2015 at 11:24
I made a project with stm32cude mx for stm32f401 discovery,
discovery board is usb msc host, send a command to devide (usb msc device) then receive data form device
my project connected and saw all infomation of device, but a don't know how to send command (2 byte) to device. what 's library can do it.
i try
USBH_BulkSendData (USBH_HandleTypeDef *phost,
uint8_t *buff,
uint16_t length,
uint8_t pipe_num,
uint8_t do_ping )
and
USBH_BulkReceiveData(USBH_HandleTypeDef *phost,
uint8_t *buff,
uint16_t length,
uint8_t pipe_num)
....
but it not send/recive data
please help me!!!!
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
USBH_Init(&hUSB_Host, USBH_UserProcess, 0);
USBH_RegisterClass(&hUSB_Host, USBH_MSC_CLASS);
USBH_Start(&hUSB_Host);
while (1)
{
/* USB Host Background task */
USBH_Process(&hUSB_Host);
HAL_Delay(1);
/* Mass Storage Application State Machine */
switch(Appli_state)
{
case APPLICATION_START:
while(USBH_BulkSendData(&hUSB_Host,(uint8_t*)tx,2,1,1)!=USBH_OK);
while(USBH_BulkReceiveData(&hUSB_Host, (uint8_t *)rx, 64,1)!=USBH_OK);
Appli_state = APPLICATION_IDLE;
break;
case APPLICATION_IDLE:
default:
break;
}
}
