Vincent Ceyssens
/
Nucleo_blink_led
Trying to get Nucleo to talk to nRF24L01P
main.cpp@0:8f61132af357, 2017-10-24 (annotated)
- Committer:
- vceyssens3
- Date:
- Tue Oct 24 18:55:23 2017 +0000
- Revision:
- 0:8f61132af357
Working on changes to fix SPI;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
vceyssens3 | 0:8f61132af357 | 1 | #include "mbed.h" |
vceyssens3 | 0:8f61132af357 | 2 | #include "nRF24L01P.h" |
vceyssens3 | 0:8f61132af357 | 3 | |
vceyssens3 | 0:8f61132af357 | 4 | Serial pc(SERIAL_TX, SERIAL_RX); |
vceyssens3 | 0:8f61132af357 | 5 | |
vceyssens3 | 0:8f61132af357 | 6 | nRF24L01P my_nrf24l01p(A6, A5, A4, D6, D5, D7); // mosi, miso, sck, csn, ce, irq |
vceyssens3 | 0:8f61132af357 | 7 | |
vceyssens3 | 0:8f61132af357 | 8 | DigitalOut myled1(LED1); |
vceyssens3 | 0:8f61132af357 | 9 | DigitalOut myled2(LED2); |
vceyssens3 | 0:8f61132af357 | 10 | |
vceyssens3 | 0:8f61132af357 | 11 | |
vceyssens3 | 0:8f61132af357 | 12 | int main() { |
vceyssens3 | 0:8f61132af357 | 13 | |
vceyssens3 | 0:8f61132af357 | 14 | // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's |
vceyssens3 | 0:8f61132af357 | 15 | // "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019) |
vceyssens3 | 0:8f61132af357 | 16 | // only handles 4 byte transfers in the ATMega code. |
vceyssens3 | 0:8f61132af357 | 17 | #define TRANSFER_SIZE 4 |
vceyssens3 | 0:8f61132af357 | 18 | |
vceyssens3 | 0:8f61132af357 | 19 | char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE]; |
vceyssens3 | 0:8f61132af357 | 20 | int txDataCnt = 0; |
vceyssens3 | 0:8f61132af357 | 21 | int rxDataCnt = 0; |
vceyssens3 | 0:8f61132af357 | 22 | |
vceyssens3 | 0:8f61132af357 | 23 | my_nrf24l01p.powerUp(); |
vceyssens3 | 0:8f61132af357 | 24 | |
vceyssens3 | 0:8f61132af357 | 25 | // Display the (default) setup of the nRF24L01+ chip |
vceyssens3 | 0:8f61132af357 | 26 | pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() ); |
vceyssens3 | 0:8f61132af357 | 27 | pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() ); |
vceyssens3 | 0:8f61132af357 | 28 | pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() ); |
vceyssens3 | 0:8f61132af357 | 29 | pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() ); //code breaks here when no TXaddress found |
vceyssens3 | 0:8f61132af357 | 30 | pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() ); |
vceyssens3 | 0:8f61132af357 | 31 | |
vceyssens3 | 0:8f61132af357 | 32 | pc.printf( "Type keys to test transfers:\r\n (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE ); |
vceyssens3 | 0:8f61132af357 | 33 | |
vceyssens3 | 0:8f61132af357 | 34 | my_nrf24l01p.setTransferSize( TRANSFER_SIZE ); |
vceyssens3 | 0:8f61132af357 | 35 | |
vceyssens3 | 0:8f61132af357 | 36 | my_nrf24l01p.setReceiveMode(); |
vceyssens3 | 0:8f61132af357 | 37 | my_nrf24l01p.enable(); |
vceyssens3 | 0:8f61132af357 | 38 | |
vceyssens3 | 0:8f61132af357 | 39 | while (1) { |
vceyssens3 | 0:8f61132af357 | 40 | |
vceyssens3 | 0:8f61132af357 | 41 | // If we've received anything over the host serial link... |
vceyssens3 | 0:8f61132af357 | 42 | if ( pc.readable() ) { |
vceyssens3 | 0:8f61132af357 | 43 | |
vceyssens3 | 0:8f61132af357 | 44 | // ...add it to the transmit buffer |
vceyssens3 | 0:8f61132af357 | 45 | txData[txDataCnt++] = pc.getc(); |
vceyssens3 | 0:8f61132af357 | 46 | |
vceyssens3 | 0:8f61132af357 | 47 | // If the transmit buffer is full |
vceyssens3 | 0:8f61132af357 | 48 | if ( txDataCnt >= sizeof( txData ) ) { |
vceyssens3 | 0:8f61132af357 | 49 | |
vceyssens3 | 0:8f61132af357 | 50 | // Send the transmitbuffer via the nRF24L01+ |
vceyssens3 | 0:8f61132af357 | 51 | my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt ); |
vceyssens3 | 0:8f61132af357 | 52 | |
vceyssens3 | 0:8f61132af357 | 53 | txDataCnt = 0; |
vceyssens3 | 0:8f61132af357 | 54 | } |
vceyssens3 | 0:8f61132af357 | 55 | |
vceyssens3 | 0:8f61132af357 | 56 | // Toggle LED1 (to help debug Host -> nRF24L01+ communication) |
vceyssens3 | 0:8f61132af357 | 57 | myled1 = !myled1; |
vceyssens3 | 0:8f61132af357 | 58 | } |
vceyssens3 | 0:8f61132af357 | 59 | |
vceyssens3 | 0:8f61132af357 | 60 | // If we've received anything in the nRF24L01+... |
vceyssens3 | 0:8f61132af357 | 61 | if ( my_nrf24l01p.readable() ) { |
vceyssens3 | 0:8f61132af357 | 62 | |
vceyssens3 | 0:8f61132af357 | 63 | // ...read the data into the receive buffer |
vceyssens3 | 0:8f61132af357 | 64 | rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) ); |
vceyssens3 | 0:8f61132af357 | 65 | |
vceyssens3 | 0:8f61132af357 | 66 | // Display the receive buffer contents via the host serial link |
vceyssens3 | 0:8f61132af357 | 67 | for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) { |
vceyssens3 | 0:8f61132af357 | 68 | |
vceyssens3 | 0:8f61132af357 | 69 | pc.putc( rxData[i] ); |
vceyssens3 | 0:8f61132af357 | 70 | } |
vceyssens3 | 0:8f61132af357 | 71 | |
vceyssens3 | 0:8f61132af357 | 72 | // Toggle LED2 (to help debug nRF24L01+ -> Host communication) |
vceyssens3 | 0:8f61132af357 | 73 | myled2 = !myled2; |
vceyssens3 | 0:8f61132af357 | 74 | } |
vceyssens3 | 0:8f61132af357 | 75 | |
vceyssens3 | 0:8f61132af357 | 76 | } |
vceyssens3 | 0:8f61132af357 | 77 | } |