void APP_Tasks ( void )
{
/* Update the application state machine based
* on the current state */
switch(appData.state)
{
case APP_STATE_INIT:
/* Open the device layer */
appData.deviceHandle = USB_DEVICE_Open( USB_DEVICE_INDEX_0, DRV_IO_INTENT_READWRITE );
if(appData.deviceHandle != USB_DEVICE_HANDLE_INVALID)
{
appData.usartHandle = DRV_USART_Open(DRV_USART_INDEX_0,
(DRV_IO_INTENT_EXCLUSIVE|DRV_IO_INTENT_READWRITE|DRV_IO_INTENT_NONBLOCKING));
/* Register a callback with device layer to get event notification (for end point 0) */
USB_DEVICE_EventHandlerSet(appData.deviceHandle, APP_USBDeviceEventHandler, 0);
appData.state = APP_STATE_WAIT_FOR_CONFIGURATION;
}
else
{
/* The Device Layer is not ready to be opened. We should try
* again later. */
}
break;
case APP_STATE_WAIT_FOR_CONFIGURATION:
/* Check if the device was configured */
if(appData.isConfigured)
{
/* Schedule the first read from CDC function driver */
appData.state = APP_STATE_CHECK_CDC_READ;
appData.isReadComplete = false;
USB_DEVICE_CDC_Read (appData.cdcInstance, &(appData.readTransferHandle),
appData.readBuffer, APP_READ_BUFFER_SIZE);
}
break;
case APP_STATE_CHECK_CDC_READ:
if(APP_StateReset())
{
break;
}
/* If a read is complete, then schedule a read
* else check if UART has received data */
if(appData.isReadComplete == true)
{
appData.isReadComplete = false;
DRV_USART_Write(appData.usartHandle, appData.readBuffer, appData.readLength);
USB_DEVICE_CDC_Read (appData.cdcInstance, &appData.readTransferHandle,
appData.readBuffer, APP_READ_BUFFER_SIZE);
for(ii=0; ii<appData.readLength; ii++) {
if (appData.readBuffer[ii] == '\n' || appData.readBuffer[ii] == '\r'){
rx[pos] = 0;
txFlag = 1;
pos = 0;
sscanf(rx,"%d",&qq);
LATAbits.LATA4 = 1;
if (qq>0){
if(qq>500000){
OC2RS = qq-600000;
}
if(qq<500000){
OC1RS = qq-400000;
}
}
}
else {
rx[pos] = appData.readBuffer[ii];
pos++;
}
}
}
appData.state = APP_STATE_CHECK_UART_RECEIVE;
break;
case APP_STATE_CHECK_UART_RECEIVE:
if(APP_StateReset())
{
break;
}
/* Check if a character was received on the UART */
if (txFlag == 1) {
qq = 7;
char len = sprintf(tx,"qq = %d\r\n",qq);
for (ii = 0;ii<len;ii++) {
appData.uartReceivedData[ii]=tx[ii];
}
USB_DEVICE_CDC_Write(0, &appData.writeTransferHandle,
appData.uartReceivedData, len,
USB_DEVICE_CDC_TRANSFER_FLAGS_DATA_COMPLETE);
txFlag = 0;
}
appData.state = APP_STATE_CHECK_CDC_READ;
break;
case APP_STATE_ERROR:
break;
default:
break;
}
}
void APP_Tasks ( void )
{
/* Update the application state machine based
* on the current state */
switch(appData.state)
{
case APP_STATE_INIT:
/* Open the device layer */
appData.deviceHandle = USB_DEVICE_Open( USB_DEVICE_INDEX_0, DRV_IO_INTENT_READWRITE );
if(appData.deviceHandle != USB_DEVICE_HANDLE_INVALID)
{
appData.usartHandle = DRV_USART_Open(DRV_USART_INDEX_0,
(DRV_IO_INTENT_EXCLUSIVE|DRV_IO_INTENT_READWRITE|DRV_IO_INTENT_NONBLOCKING));
/* Register a callback with device layer to get event notification (for end point 0) */
USB_DEVICE_EventHandlerSet(appData.deviceHandle, APP_USBDeviceEventHandler, 0);
appData.state = APP_STATE_WAIT_FOR_CONFIGURATION;
}
else
{
/* The Device Layer is not ready to be opened. We should try
* again later. */
}
break;
case APP_STATE_WAIT_FOR_CONFIGURATION:
/* Check if the device was configured */
if(appData.isConfigured)
{
/* Schedule the first read from CDC function driver */
appData.state = APP_STATE_CHECK_CDC_READ;
appData.isReadComplete = false;
USB_DEVICE_CDC_Read (appData.cdcInstance, &(appData.readTransferHandle),
appData.readBuffer, APP_READ_BUFFER_SIZE);
}
break;
case APP_STATE_CHECK_CDC_READ:
if(APP_StateReset())
{
break;
}
/* If a read is complete, then schedule a read
* else check if UART has received data */
if(appData.isReadComplete == true)
{
appData.isReadComplete = false;
DRV_USART_Write(appData.usartHandle, appData.readBuffer, appData.readLength);
USB_DEVICE_CDC_Read (appData.cdcInstance, &appData.readTransferHandle,
appData.readBuffer, APP_READ_BUFFER_SIZE);
}
appData.state = APP_STATE_CHECK_UART_RECEIVE;
break;
case APP_STATE_CHECK_UART_RECEIVE:
if(APP_StateReset())
{
break;
}
/* Check if a character was received on the UART */
if(DRV_USART_Read(appData.usartHandle, appData.uartReceivedData, 1) > 0)
{
/* We have received data on the UART */
USB_DEVICE_CDC_Write(0, &appData.writeTransferHandle,
appData.uartReceivedData, 1,
USB_DEVICE_CDC_TRANSFER_FLAGS_DATA_COMPLETE);
}
appData.state = APP_STATE_CHECK_CDC_READ;
break;
case APP_STATE_ERROR:
break;
default:
break;
}
}
