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/**
******************************************************************************
* @file USB_Host/CDC_Standalone/Src/cdc_send.c
* @author MCD Application Team
* @brief CDC Send state machine
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private define ------------------------------------------------------------*/
/* The size of the buffer depends on the user's needs */
#define TX_BUFF_SIZE (64 * 1024)
/* Private typedef -----------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint8_t CDC_TX_Buffer[TX_BUFF_SIZE];
__IO uint8_t CDC_SendState = 0;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Handles CDC Send Menu.
* @param None
* @retval None
*/
void CDC_Handle_Send_Menu(void)
{
switch(CdcDemo.Send_state)
{
case CDC_SEND_IDLE:
CdcDemo.Send_state = CDC_SEND_WAIT;
CDC_SendState = 0;
USBH_CDC_Stop(&hUSBHost);
memset(CDC_TX_Buffer, 0x5A, TX_BUFF_SIZE);
LCD_LOG_ClearTextZone();
LCD_DbgLog("Sending data ...\n");
USBH_CDC_Transmit(&hUSBHost, CDC_TX_Buffer, TX_BUFF_SIZE);
break;
case CDC_SEND_WAIT:
if(CDC_SendState == 1) /* Data sent */
{
BSP_LCD_ClearStringLine(19);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(19, (uint8_t *)"Press User button to start receiving data ");
/* Wait for User Input */
while((BSP_PB_GetState(BUTTON_WAKEUP) != SET) && (Appli_state != APPLICATION_DISCONNECT))
{
}
HAL_Delay(400);
CdcDemo.state = CDC_DEMO_RECEIVE;
CdcDemo.Send_state = CDC_SEND_IDLE;
}
break;
default:
break;
}
}
/**
* @brief CDC data transmit callback.
* @param phost: Host handle
* @retval None
*/
void USBH_CDC_TransmitCallback(USBH_HandleTypeDef *phost)
{
LCD_DbgLog (">> Data sent\n" );
CDC_SendState = 1;
}