void ProcessIO(void)
{
uchar i;
BlinkUSBStatus(); //Blink the LEDs according to the USB device status
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
// only check for new USB buffer if the old RS232 buffer is
// empty. This will cause additional USB packets to be NAK'd
// RS232_送信バッファに HostPC から届いたデータをFillする.
if( mDataRdyUSART() < 32 )
if (LastRS232Out == 0) {
LastRS232Out = getsUSBUSART(RS232_Out_Data,64); //until the buffer is free.
if(LastRS232Out > 0) {
// RS232_Out_Data_Rdy = 1; // signal buffer full
RS232cp = 0; // Reset the current position
}
}
#if USART_USE_TX_INTERRUPT // 送信割り込みを使用する.
//USARTが送信可であれば RS232_送信バッファの内容を USARTに １文字送る.
if(LastRS232Out && mTxRdyUSART()) {
// PIR1bits.TXIF = 0; // 送信割り込みフラグ.
PIE1bits.TXIE = 1; // 送信割り込み許可.
}
#else
//USARTが送信可であれば RS232_送信バッファの内容を USARTに １文字送る.
if(LastRS232Out && mTxRdyUSART()) {
putcUSART(RS232_Out_Data[RS232cp]); //１文字送る.
++RS232cp;
if (RS232cp == LastRS232Out) {
// RS232_Out_Data_Rdy = 0;
LastRS232Out=0;
RS232cp=0;
}
}
#endif
//可能なら、RS232_受信バッファの内容をHostPCに送る.
if((USBUSARTIsTxTrfReady()) && (mDataRdyUSART())){
i=0;
while( mDataRdyUSART() ) {
if(i>=CDC_DATA_OUT_EP_SIZE) break;
USB_Out_Buffer[i++]=getcUSART();
}
putUSBUSART(&USB_Out_Buffer[0], i);
NextUSBOut = 0;
}
CDCTxService();
}
void ProcessIO(void)
{
uchar cnt;
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
// only check for new USB buffer if the old RS232 buffer is
// empty. This will cause additional USB packets to be NAK'd
// RS232_送信バッファに HostPC から届いたデータをFillする.
if (LastRS232Out == 0) {
LastRS232Out = getsUSBUSART(RS232_Out_Data,64); //until the buffer is free.
if(LastRS232Out > 0) {
RS232cp = 0; // Reset the current position
}
}
for(cnt=0;cnt<32;cnt++) {
//USARTが送信可であれば RS232_送信バッファの内容を USARTに １文字送る.
if(LastRS232Out && mTxRdyUSART()) {
putcUSART(RS232_Out_Data[RS232cp]); //１文字送る.
++RS232cp;
if (RS232cp == LastRS232Out) {
LastRS232Out=0;
RS232cp=0;
}
}
//USARTがデータを受信済みであれば RS232_受信バッファに溜める.
if(mDataRdyUSART()) {
USB_Out_Buffer[NextUSBOut] = getcUSART();
++NextUSBOut;
//USB_Out_Buffer[NextUSBOut] = 0;
}
}
//可能なら、RS232_受信バッファの内容をHostPCに送る.
if((USBUSARTIsTxTrfReady()) && (NextUSBOut > 0)){
putUSBUSART(&USB_Out_Buffer[0], NextUSBOut);
NextUSBOut = 0;
}
CDCTxService();
}
/********************************************************************
* Function: void ProcessIO(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user
* routines. It is a mixture of both USB and
* non-USB tasks.
*
* Note: None
*******************************************************************/
void ProcessIO(void)
{
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
// only check for new USB buffer if the old RS232 buffer is
// empty.
// Additional USB packets will be NAK'd
// until the buffer is free.
if (RS232_Out_Data_Rdy == 0)
{
LastRS232Out = getsUSBUSART(RS232_Out_Data,64);
if(LastRS232Out > 0)
{
RS232_Out_Data_Rdy = 1; // signal
//buffer full
RS232cp = 0;// Reset the current position
}
}
if(RS232_Out_Data_Rdy && mTxRdyUSART())
{
putcUSART(RS232_Out_Data[RS232cp]);
++RS232cp;
if (RS232cp == LastRS232Out)
RS232_Out_Data_Rdy = 0;
}
if(mDataRdyUSART())
{
USB_Out_Buffer[NextUSBOut] = getcUSART();
++NextUSBOut;
USB_Out_Buffer[NextUSBOut] = 0;
}
if((mUSBUSARTIsTxTrfReady()) && (NextUSBOut > 0))
{
putUSBUSART(&USB_Out_Buffer[0], NextUSBOut);
NextUSBOut = 0;
}
CDCTxService();
} //end ProcessIO
unsigned char getcUSART(void) {
char c;
if (RCSTAbits.OERR) { // in case of overrun error we should never see an overrun error, but if we do,
RCSTAbits.CREN = 0; // reset the port
c = RCREG;
RCSTAbits.CREN = 1; // and keep going.
}
else {
while ( !mDataRdyUSART() ) ; // Wait in input
c = RCREG;
}
//XLCDPut(c) ;
// not necessary. EUSART auto clears the flag when RCREG is cleared
PIR1bits.RCIF = 0; // clear Flag
return c;
}
/********************************************************************
* Function: void ProcessIO(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user
* routines. It is a mixture of both USB and
* non-USB tasks.
*
* Note: None
*******************************************************************/
void ProcessIO(void)
{
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
if (RS232_Out_Data_Rdy == 0) // only check for new USB buffer if the old RS232 buffer is
{ // empty. This will cause additional USB packets to be NAK'd
LastRS232Out = getsUSBUSART(RS232_Out_Data,64); //until the buffer is free.
if(LastRS232Out > 0)
{
RS232_Out_Data_Rdy = 1; // signal buffer full
RS232cp = 0; // Reset the current position
}
}
//Check if one or more bytes are waiting in the physical UART transmit
//queue. If so, send it out the UART TX pin.
if(RS232_Out_Data_Rdy && mTxRdyUSART())
{
#if defined(USB_CDC_SUPPORT_HARDWARE_FLOW_CONTROL)
//Make sure the receiving UART device is ready to receive data before
//actually sending it.
if(UART_CTS == USB_CDC_CTS_ACTIVE_LEVEL)
{
putcUSART(RS232_Out_Data[RS232cp]);
++RS232cp;
if (RS232cp == LastRS232Out)
RS232_Out_Data_Rdy = 0;
}
#else
//Hardware flow control not being used. Just send the data.
putcUSART(RS232_Out_Data[RS232cp]);
++RS232cp;
if (RS232cp == LastRS232Out)
RS232_Out_Data_Rdy = 0;
#endif
}
//Check if we received a character over the physical UART, and we need
//to buffer it up for eventual transmission to the USB host.
if(mDataRdyUSART() && (NextUSBOut < (CDC_DATA_OUT_EP_SIZE - 1)))
{
USB_Out_Buffer[NextUSBOut] = getcUSART();
++NextUSBOut;
USB_Out_Buffer[NextUSBOut] = 0;
}
#if defined(USB_CDC_SUPPORT_HARDWARE_FLOW_CONTROL)
//Drive RTS pin, to let UART device attached know if it is allowed to
//send more data or not. If the receive buffer is almost full, we
//deassert RTS.
if(NextUSBOut <= (CDC_DATA_OUT_EP_SIZE - 5u))
{
UART_RTS = USB_CDC_RTS_ACTIVE_LEVEL;
}
else
{
UART_RTS = (USB_CDC_RTS_ACTIVE_LEVEL ^ 1);
}
#endif
//Check if any bytes are waiting in the queue to send to the USB host.
//If any bytes are waiting, and the endpoint is available, prepare to
//send the USB packet to the host.
if((USBUSARTIsTxTrfReady()) && (NextUSBOut > 0))
{
putUSBUSART(&USB_Out_Buffer[0], NextUSBOut);
NextUSBOut = 0;
}
CDCTxService();
}//end ProcessIO
/********************************************************************
* Function: void ProcessIO(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: This function is a place holder for other user
* routines. It is a mixture of both USB and
* non-USB tasks.
*
* Note: None
*******************************************************************/
void ProcessIO(void)
{
BYTE numBytesRead;
//Blink the LEDs according to the USB device status
BlinkUSBStatus();
// User Application USB tasks
if((USBDeviceState < CONFIGURED_STATE)||(USBSuspendControl==1)) return;
// if(buttonPressed)
// {
// if(stringPrinted == FALSE)
// {
// if(mUSBUSARTIsTxTrfReady())
// {
// putrsUSBUSART("Button Pressed -- \r\n");
// stringPrinted = TRUE;
// }
// }
// }
// else
// {
// stringPrinted = FALSE;
// }
//
// if(mUSBUSARTIsTxTrfReady())
// {
// numBytesRead = getsUSBUSART(USB_Out_Buffer,64);
// if(numBytesRead != 0)
// {
// BYTE i;
//
// for(i=0;i<numBytesRead;i++)
// {
// switch(USB_Out_Buffer[i])
// {
// case 0x0A:
// case 0x0D:
// USB_In_Buffer[i] = USB_Out_Buffer[i];
// break;
// default:
// USB_In_Buffer[i] = USB_Out_Buffer[i] + 1;
// break;
// }
//
// }
//
// putUSBUSART(USB_In_Buffer,numBytesRead);
// }
// }
//Check if we received a character over the physical UART, and we need
//to buffer it up for eventual transmission to the USB host.
if(mDataRdyUSART() && (NextUSBOut < (CDC_DATA_OUT_EP_SIZE - 1)))
{
USB_Out_Buffer[NextUSBOut] = getcUSART();
++NextUSBOut;
USB_Out_Buffer[NextUSBOut] = 0;
}
//Check if any bytes are waiting in the queue to send to the USB host.
//If any bytes are waiting, and the endpoint is available, prepare to
//send the USB packet to the host.
if((USBUSARTIsTxTrfReady()) && (NextUSBOut > 0))
{
putUSBUSART(&USB_Out_Buffer[0], NextUSBOut);
NextUSBOut = 0;
}
CDCTxService();
} //end ProcessIO
