void nrfSetDatarate(int datarate)
{
switch(datarate)
{
case RADIO_RATE_250K:
nrfWrite1Reg(REG_RF_SETUP, VAL_RF_SETUP_250K);
break;
case RADIO_RATE_1M:
nrfWrite1Reg(REG_RF_SETUP, VAL_RF_SETUP_1M);
break;
case RADIO_RATE_2M:
nrfWrite1Reg(REG_RF_SETUP, VAL_RF_SETUP_2M);
break;
}
}
static void eskylinkInitPairing(void)
{
int i;
//Power the radio, Enable the DR interruption, set the radio in PRX mode with 2bytes CRC
nrfWrite1Reg(REG_CONFIG, 0x3F);
vTaskDelay(M2T(2)); //Wait for the chip to be ready
//Set the radio channel, pairing channel is 50
nrfSetChannel(50);
//Set the radio data rate
nrfSetDatarate(RADIO_RATE_1M);
nrfWrite1Reg(REG_SETUP_AW, VAL_SETUP_AW_3B); // 3 bytes address
address[0] = address[1] = address[2] = 0;
nrfWriteReg(REG_RX_ADDR_P0, address, 3); // Pipe address == 0
nrfWrite1Reg(REG_EN_RXADDR, 0x01);
nrfWrite1Reg(REG_FEATURE, 0x00); // No dynamic size payload
nrfWrite1Reg(REG_DYNPD, 0x00);
nrfWrite1Reg(REG_RX_PW_P0, 13); //13 bytes payload
nrfWrite1Reg(REG_EN_AA, 0); //Disable shockburst
//Flush RX
for(i=0;i<3;i++)
nrfFlushRx();
//Flush TX
for(i=0;i<3;i++)
nrfFlushTx();
}
static int eskylinkFetchData(char * packet, int dataLen)
{
nrfSetEnable(false);
//Fetch the data
nrfReadRX(packet, dataLen);
//clear the interruptions flags
nrfWrite1Reg(REG_STATUS, 0x70);
nrfSetEnable(true);
return dataLen;
}
static void eskylinkInitPaired(int channel)
{
nrfSetChannel(channel);
nrfSetDatarate(RADIO_RATE_1M);
nrfWrite1Reg(REG_SETUP_AW, VAL_SETUP_AW_4B); // 4 bytes address
nrfWriteReg(REG_RX_ADDR_P0, address, 4); // Pipe address == from pairing packet
nrfWrite1Reg(REG_EN_RXADDR, 0x01);
nrfWrite1Reg(REG_FEATURE, 0x00); // No dynamic size payload
nrfWrite1Reg(REG_DYNPD, 0x00);
nrfWrite1Reg(REG_RX_PW_P0, 13); //13 bytes payload
nrfWrite1Reg(REG_EN_AA, 0); //Disable shockburst
}
void nrfSetChannel(unsigned int channel)
{
if (channel<126)
nrfWrite1Reg(REG_RF_CH, channel);
}