void
service_net ()
{
while (interrupts > 0)
{
NRF_CE_lo;
uint8_t status = NRF_ReadRegister(NRF_STATUS);
RXEN_lo;
// received a packet
if (status & 0x40)
{
printf("Radio received a packet\n");
readPacket();
} else if (status & 0x20)
{ // packet was sent
printf("Radio successfully sent the packet\n");
NRF_WriteRegister(NRF_STATUS, 0x10);
} else if (status & 0x10)
{ // packet failed to send
printf("Radio failed to send the packet\n");
NRF_WriteRegister(NRF_STATUS, 0x20);
}
RXEN_hi;
NRF_CE_hi;
INT_Disable();
interrupts--;
INT_Enable();
}
}
void NRF_DumpRegister()
{
int i;
int ch;
for(i=0; i<0x18; i++)
{
ch = 0;
ch = NRF_ReadRegister(i);
TRACE2("REG 0x%02X= 0x%02X\r\n", i, ch);
}
}
void
net_init()
{
uint8_t addr_array[5] = {0xE7, 0xE7, 0xE7, 0xE7, 0xE7};
RXEN_hi; // enable amp
NRF_CE_lo;
NRF_WriteRegister(NRF_CONFIG, 0x3C); // Enable CRC and disable TX interrupts
NRF_WriteRegister(NRF_EN_AA, 0x0); // Disable auto ACK
NRF_WriteRegister(NRF_EN_RXADDR, 0x3F); // Receive Pipe 0 enabled
NRF_WriteRegister(NRF_SETUP_RETR, 0); // Retransmits
NRF_WriteRegister(NRF_SETUP_AW, 0x03); // Address Width (5 bytes)
NRF_WriteRegister(NRF_RF_SETUP, bandwidth | power); // set up
NRF_WriteRegister(NRF_RF_CH, channel); // RF Channel
NRF_WriteRegister(NRF_RX_PW_P0, 16); // RX Payload Width
NRF_WriteRegister(NRF_FEATURE, 0x01);
NRF_WriteRegisterMulti(NRF_TX_ADDR, 5, addr_array);
NRF_WriteRegisterMulti(NRF_RX_ADDR_P0, 5, addr_array);
NRF_WriteRegister(NRF_STATUS, 0x7E); // Clear Interrupts
NRF_SendCommand(NRF_FLUSH_TX, 0xFF);
NRF_WriteRegister(NRF_CONFIG, 0x0E);
recv_setup();
NRF_WriteRegister(NRF_STATUS, 0x70); // clear radio interrupts
uint8_t status = NRF_ReadRegister(NRF_STATUS);
if (status == 0x0E)
{
printf("Radio is ready\n");
}
else
{
printf("Radio failed to initialize\n");
}
}
void NRF_PowerUp(void)
{
NRF_WriteRegister(NRF_CONFIG, NRF_ReadRegister(NRF_CONFIG) | 0x02);
}
void NRF_PowerDown(void)
{
GPIO->P[NRF_RXEN_PORT].DOUT &= ~(1 << NRF_RXEN_PIN);
NRF_WriteRegister(NRF_CONFIG, NRF_ReadRegister(NRF_CONFIG) & (~0x02));
}
