int main(int argc, char ** argv) {
int res;
printf("Start rpiCC2500\n");
TICC *cc = (TICC *) malloc(sizeof(TICC));
res = CC_Init(cc, "/dev/spidev0.0", 25 /*GNO0-pin Not yet used*/);
if (res < 0) {
printf("Failed to init TICC.");
return 1;
}
perror("SPI init");
usleep(30000);
TI_CC_SPIStrobe( cc->fd, TI_CCxxx0_SRES);
printf("Wait for RF to be Ready\n");
usleep(40);
printf("RF ok\n");
writeRFSettings(cc);
printf("BurstReg\n");
TI_CC_SPIWriteBurstReg(cc->fd, TI_CCxxx0_PATABLE, paTable, paTableLen);
printf("Strobe\n");
//TI_CC_SPIStrobe(cc->fd, TI_CCxxx0_SRX); // Initialize CCxxxx in RX mode.
// When a pkt is received, it will
// signal on GDO0
char rxBuffer[50];
printf("entering LOOP\n");
printf("Part No.: %d\n",TI_CC_SPIReadStatus(cc->fd, TI_CCxxx0_PARTNUM));
printf("Version No.: %d\n",TI_CC_SPIReadStatus(cc->fd, TI_CCxxx0_VERSION));
char len = 50;
int j,i;
for(j=0;j<10;j++){ // for now send every 500ms a message and check for received packages
rxBuffer[0] =3;
rxBuffer[1] =0x01;
rxBuffer[2] =12;
rxBuffer[3] =rxBuffer[1]^rxBuffer[2]^0x01;
printf("Send Package\n");
RFSendPacket(cc, rxBuffer, 4);
usleep(500000);
printf("Check for Package\n");
while(RFReceivePacket(cc, rxBuffer, &len)){
printf("Got A Package %d\n",len);
for(i =0; i< len; i++){
printf("%d ",rxBuffer[i]);
}
printf("\n");
//Receiveddata are stored in rxBuffer
//Put some intelligence here
len = 50;
}
}
printf("exiting LOOP\n");
CC_dispose(cc);
free(cc);
return 0;
}
char WaterLevelValid(void) {
// This function builds and transmits a request packet to the sensor module
// It then waits until a flag is set within an RX interrupt
// that specifies a valid water level condition.
rx_water_level_data = 0; // Set new data flag low
RFSendPacket(txBuffer, MSGLEN); // Send a request for water level data
while(rx_water_level_data == 0); // Hold in loop until sensor data is received.
return rxBuffer[WATER_DATA_RX_INDEX]; // Return the byte corresponding to water level data
}
__interrupt void port2_ISR (void)
{
// Build packet
txBuffer[0] = 2; // Packet length
txBuffer[1] = 0x01; // Packet address
txBuffer[2] = (TI_CC_SW_PxIFG & 0xC0) >> 6; // Load switch inputs
RFSendPacket(txBuffer, 3); // Send value over RF
__delay_cycles(100000); // Switch debounce
TI_CC_GDO0_PxIFG &= ~TI_CC_GDO0_PIN; // Clear GDO flag
TI_CC_SW_PxIFG &= ~(TI_CC_SW1+TI_CC_SW2); // Clr flag that caused int
} // Clear it.
int main(void) {
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
//P2REN |= BIT3; // enable pull up resistor on p2.3
//P2OUT |= BIT3; // This does not seem to be working as expected.
// Initialize radio and SPI
TI_CC_SPISetup(); // Initialize SPI port
TI_CC_PowerupResetCCxxxx(); // Reset CCxxxx
writeRFSettings(); // Write RF settings to config reg
TI_CC_SPIWriteBurstReg(TI_CCxxx0_PATABLE, paTable, paTableLen);//Write PATABLE
// Enable interrupts from radio module
TI_CC_GDO0_PxIES |= TI_CC_GDO0_PIN; // Int on falling edge (end of pkt)
TI_CC_GDO0_PxIFG &= ~TI_CC_GDO0_PIN; // Clear flag
TI_CC_GDO0_PxIE |= TI_CC_GDO0_PIN; // Enable int on end of packet
// Enable radio
TI_CC_SPIStrobe(TI_CCxxx0_SRX); // Initialize CCxxxx in RX mode.
// configure packet
// --------------------------------------------
txBuffer[0] = MSGLEN-1; // Packet length
txBuffer[1] = 0x01; // Packet address - If this is 0xFF, it's an ack and not data.
// Begin data
// --------------------------------------------
txBuffer[2] = VALID_LEVEL; // default flag is valid. This is set on request from other module.
txBuffer[3] = 0x30;
txBuffer[4] = 0x31;
txBuffer[5] = 0x34;
txBuffer[6] = 0x35;
txBuffer[7] = 0x36;
txBuffer[8] = 0x37;
txBuffer[9] = 0x38;
txBuffer[10] = 0x39; // the rest of this data is used as filler.
// ------
// End Data
txBuffer[11] = 0x00; // terimate
// --------------------------------------------
_BIS_SR(GIE); // turn on interrupts. Initialization must be complete by this point
while(1) {
if(water_level_request) {
// Ideally, P2.3 should be pulled high. This is causing strange behavior
// on the pin that should be investigated.
// Check the status of P2.3 and set the r
txBuffer[WATER_DATA_TX_INDEX] = (P2IN & BIT3) ? 0 : VALID_LEVEL;// turn on the pump if the water level is valid.
RFSendPacket(txBuffer, MSGLEN); // Send water level data back to controller
__delay_cycles(450000); // delay a few cycles. Note that this means requests that take place during
// a pump cycle will be ignored completely.
water_level_request = 0; // clear requested data flag
}
}
}
__interrupt void Port1_ISR (void)
{
// If Switch was pressed
if(TI_CC_SW_PxIFG & TI_CC_SW1)
{
// Build packet
txBuffer[0] = 2; // Packet length
txBuffer[1] = 0x01; // Packet address
txBuffer[2] = (~TI_CC_SW_PxIFG << 1) & 0x02; // Load switch inputs
RFSendPacket(txBuffer, 3); // Send value over RF
__delay_cycles(5000); // Switch debounce
}
TI_CC_SW_PxIFG &= ~(TI_CC_SW1); // Clr flag that caused int
}
__interrupt void port1_ISR (void)
{
if(P1IFG & (TI_CC_SW1 + TI_CC_SW2))
{
// Build packet
txBuffer[0] = 2; // Packet length
txBuffer[1] = 0x01; // Packet address
txBuffer[2] = (~TI_CC_SW_PxIN) & 0x0F; // Load four switch inputs
RFSendPacket(txBuffer, 3); // Send value over RF
}
else if(P1IFG & TI_CC_GDO0_PIN)
{
char len=2; // Len of pkt to be RXed (only addr
// plus data; size byte not incl b/c
// stripped away within RX function)
if (RFReceivePacket(rxBuffer,&len)) // Fetch packet from CCxxxx
TI_CC_LED_PxOUT ^= rxBuffer[1]; // Toggle LEDs according to pkt data
}
// P1IFG &= ~(TI_CC_SW1+TI_CC_SW2+TI_CC_SW3+TI_CC_SW4);//Clr flag that caused int
TI_CC_SW_PxIFG &= ~(TI_CC_SW1+TI_CC_SW2); // Clr flag that caused int
TI_CC_GDO0_PxIFG &= ~TI_CC_GDO0_PIN; // After pkt TX, this flag is set.
} // Clear it.
