JNP3_IOT_2016Z
nRF24L01+ BER app RX
Fork of
nRF24L01P_Hello_World
by 
Owen Edwards
Revision 2:d2b92fbe58dd, committed 2016-11-07
- Comitter:
- ttajmajer
- Date:
- Mon Nov 07 15:54:54 2016 +0000
- Parent:
- 1:5be2682710c6
- Commit message:
- nrf24l01 BER app RX
Changed in this revision
--- a/main.cpp Wed Jan 19 23:53:19 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-#include "mbed.h"
-#include "nRF24L01P.h"
-
-Serial pc(USBTX, USBRX); // tx, rx
-
-nRF24L01P my_nrf24l01p(p5, p6, p7, p8, p9, p10); // mosi, miso, sck, csn, ce, irq
-
-DigitalOut myled1(LED1);
-DigitalOut myled2(LED2);
-
-int main() {
-
-// The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
-// "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
-// only handles 4 byte transfers in the ATMega code.
-#define TRANSFER_SIZE 4
-
- char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
- int txDataCnt = 0;
- int rxDataCnt = 0;
-
- my_nrf24l01p.powerUp();
-
- // Display the (default) setup of the nRF24L01+ chip
- pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
- pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
- pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
- pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
- pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
-
- pc.printf( "Type keys to test transfers:\r\n (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
-
- my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
-
- my_nrf24l01p.setReceiveMode();
- my_nrf24l01p.enable();
-
- while (1) {
-
- // If we've received anything over the host serial link...
- if ( pc.readable() ) {
-
- // ...add it to the transmit buffer
- txData[txDataCnt++] = pc.getc();
-
- // If the transmit buffer is full
- if ( txDataCnt >= sizeof( txData ) ) {
-
- // Send the transmitbuffer via the nRF24L01+
- my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
-
- txDataCnt = 0;
- }
-
- // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
- myled1 = !myled1;
- }
-
- // If we've received anything in the nRF24L01+...
- if ( my_nrf24l01p.readable() ) {
-
- // ...read the data into the receive buffer
- rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
-
- // Display the receive buffer contents via the host serial link
- for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
-
- pc.putc( rxData[i] );
- }
-
- // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
- myled2 = !myled2;
- }
- }
-}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_rx.cpp Mon Nov 07 15:54:54 2016 +0000
@@ -0,0 +1,123 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+
+
+//***************************************************************************//
+// !!! SETTINGS !!!
+
+#define DATA_RATE NRF24L01P_DATARATE_250_KBPS
+//#define DATA_RATE NRF24L01P_DATARATE_1_MBPS
+//#define DATA_RATE NRF24L01P_DATARATE_2_MBPS
+
+#define POWER NRF24L01P_TX_PWR_ZERO_DB
+//#define POWER NRF24L01P_TX_PWR_MINUS_6_DB
+//#define POWER NRF24L01P_TX_PWR_MINUS_12_DB
+//#define POWER NRF24L01P_TX_PWR_MINUS_18_DB
+
+#define CHANNEL 0 // 0 - 30
+
+//***************************************************************************//
+
+
+Serial pc(USBTX, USBRX); // tx, rx
+nRF24L01P radio(PB_15, PB_14, PB_13, PB_12, PB_1, PB_2); // mosi, miso, sck, csn, ce, irq
+DigitalOut led(LED1);
+InterruptIn button(USER_BUTTON);
+
+bool stats_reset = false;
+long rx_packet_counter = 0;
+long rx_bit_counter = 0;
+long rx_error_counter = 0;
+bool status = false;
+
+
+void tick_status(){
+ status = true;
+}
+
+void print_status(){
+ char buff[256];
+
+ sprintf(buff, "RX packets num: %ld\r\n"
+ "RX bits num: %ld\r\n"
+ "RX errors: %ld\r\n\r\n",
+ rx_packet_counter, rx_bit_counter, rx_error_counter);
+
+ pc.write((const uint8_t *)buff, strlen(buff), 0, 0);
+}
+
+void rst_stats(){
+ stats_reset = true;
+}
+
+int main() {
+ #define TRANSFER_SIZE 32
+ #define CODE 0xAA
+ char rxData[TRANSFER_SIZE];
+ Ticker status_ticker;
+
+ radio.powerDown();
+ radio.powerUp();
+
+ radio.setAirDataRate(DATA_RATE);
+ radio.setRfOutputPower(POWER);
+ radio.setRfFrequency(NRF24L01P_MIN_RF_FREQUENCY + 4 * CHANNEL);
+
+ radio.setTransferSize(TRANSFER_SIZE);
+ radio.setCrcWidth(NRF24L01P_CRC_NONE);
+
+ pc.baud(115200);
+ status_ticker.attach(&tick_status, 1.0);
+ button.rise(&rst_stats);
+
+
+ pc.printf( "=======================================\r\n");
+ pc.printf( "CPU SystemCoreClock is : %d Hz\r\n", SystemCoreClock);
+ pc.printf( "=======================================\r\n");
+ pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", radio.getRfFrequency() );
+ pc.printf( "nRF24L01+ Output power : %d dBm\r\n", radio.getRfOutputPower() );
+ pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", radio.getAirDataRate() );
+ pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", radio.getTxAddress() );
+ pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", radio.getRxAddress() );
+ pc.printf( "=======================================\r\n");
+
+ radio.setReceiveMode();
+ radio.enable();
+
+ while(1){
+
+ if(radio.readable()){
+ int rx_bytes;
+
+ rx_bytes = radio.read( NRF24L01P_PIPE_P0, rxData, sizeof(rxData));
+
+ if(rx_bytes < 0){
+ pc.printf("RX ERROR!\r\n");
+ } else{
+ rx_packet_counter += 1;
+ rx_bit_counter += rx_bytes * 8;
+
+ for(int i=0; i<rx_bytes; i++){
+ int err_bits;
+ if(rxData[i] != CODE){
+ err_bits = rxData[i] xor CODE;
+ rx_error_counter += __builtin_popcount(err_bits);
+ }
+ }
+ }
+ }
+
+ if(stats_reset){
+ pc.printf("=== RESETING COUNTERS ===\r\n");
+ rx_packet_counter = 0;
+ rx_bit_counter = 0;
+ rx_error_counter = 0;
+ stats_reset = false;
+ }
+
+ if(status){
+ print_status();
+ status = false;
+ }
+ }
+}
--- a/mbed.bld Wed Jan 19 23:53:19 2011 +0000 +++ b/mbed.bld Mon Nov 07 15:54:54 2016 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e +http://mbed.org/users/mbed_official/code/mbed/builds/abea610beb85 \ No newline at end of file