/***********************************************************************************
* @fn appRfReceiverTask
*
* @brief Check if a new packet has been received. If a new packet
* is received the payload is sent to the UART.
*
* @param none
*
* @return none
*/
static void appRfReceiverTask(void)
{
if (mrfiLinkDataRdy()) {
uint8 nToSend;
uint8 fSuccess;
// Tell the PC not to send data
halUartEnableRxFlow(FALSE);
// Wait for the PC to respond
halMcuWaitUs(1000);
// Receive RF data
nToSend = mrfiLinkRecv(pRxData);
// If reception successful, send packet to UART
fSuccess= FALSE;
if(nToSend>0) {
if (halUartWrite(pRxData,nToSend)==nToSend)
fSuccess= TRUE;
}
if (!fSuccess) {
nRxErr++;
appUpdateDisplay();
}
// Signal RX flow on, the PC may send data again
halUartEnableRxFlow(TRUE);
}
}
/***********************************************************************************
* @fn main
*
* @brief This is the main entry of the RF HID application. It sets
* distinct short addresses for the nodes, initalises and runs
* receiver and sender tasks sequentially in an endless loop.
*
* @return none
*/
void main(void)
{
// Initialise board peripherals
halBoardInit();
// Initialise USB
usbHidInit();
// Initialize MRFI
mrfiLinkInit(DONGLE_ADDRESS,EB_ADDRESS,MRFI_CHANNEL);
// Indicate that the device is initialised
halLedSet(1);
// Main processing loop
while (TRUE) {
// Process USB standard requests
usbHidProcessEvents();
// Process incoming radio traffic from HID devices
if (mrfiLinkDataRdy()) {
uint8 numBytes;
// Receive RF packet
numBytes = mrfiLinkRecv(pRfData);
// If reception successful, ACK it and send packet to host over USB
if(numBytes>0) {
if (pRfData[0]==KEYBOARD_DATA_ID && numBytes==KEYBOARD_DATA_SIZE) {
// Process keyboard data
usbHidProcessKeyboard(pRfData);
halLedToggle(1);
}
if (pRfData[0]==MOUSE_DATA_ID && numBytes==MOUSE_DATA_SIZE) {
// Process mouse data
usbHidProcessMouse(pRfData);
halLedToggle(1);
}
}
}
}
}
