bool RHReliableDatagram::available() {
bool ret = nrf24_rx_fifo_data();
if (!ret)
nrf24_rx_mode();
return ret;
}
static int nrf24_tx_result_wait(void) {
uint8_t status;
uint16_t count = 10000; /* ~100ms timeout */
status = nrf24_read_status();
/* Reset CE early so that a new Tx or Rx op can start sooner. */
nrf24_ce(0);
while ((!(status & (1 << TX_DS)) || (status & (1 << TX_FULL))) &&
!(status & (1 << MAX_RT)) && --count) {
delay8((int) (F_CPU / 8000L * 0.01));
status = nrf24_read_status();
}
/* Reset status bits */
nrf24_write_reg(STATUS, (1 << MAX_RT) | (1 << TX_DS));
if (nrf24_in_rx) {
nrf24_in_rx = 0;
nrf24_rx_mode();
}
return (status & (1 << TX_DS)) ? 0 : -1;
}
bool RHReliableDatagram::init() {
spi_init();
if (nrf24_init())
return 0;
update_rx_addr(addr);
nrf24_rx_mode();
return 1;
}
void setup(void) {
uint8_t s = SREG;
uint8_t m = MCUCR;
uint8_t i, addrs[6];
wdt_disable();
serial_init();
timer_init();
spi_init();
nrf24_init();
sei();
/*
* Set our radio address and the remote end's radio address, read
* the addresses from EEPROM where they need to be saved first.
*/
for (i = 0; i < 6; i ++)
addrs[i] = eeprom_read(i);
nrf24_set_rx_addr(addrs + 0);
nrf24_set_tx_addr(addrs + 3);
/* Write something to say hello */
serial_write_str("SREG:");
serial_write_hex16(s);
serial_write_str(", MCUCR:");
serial_write_hex16(m);
serial_write_str(", our addr: ");
serial_write1(addrs[0]);
serial_write1(addrs[1]);
serial_write1(addrs[2]);
serial_write_eol();
nrf24_rx_mode();
serial_set_handler(handle_input);
}
void RHReliableDatagram::setThisAddress(uint8_t new_addr) {
addr = new_addr;
nrf24_idle_mode(1);
update_rx_addr(addr);
nrf24_rx_mode();
}
