client version of coap
Dependencies: nRF24L01P cantcoap3
radioWrapper.cpp
- Committer:
- Ka_myk
- Date:
- 2019-01-25
- Revision:
- 5:d633e12f113f
- Parent:
- 2:e8823d9fa162
File content as of revision 5:d633e12f113f:
#include "radioWrapper.h" #include "mbed.h" #include "dbg.h" int RadioWrapper::read(uint8_t* buffer, int len, int timeout) { Timer t; t.start(); // check if buffor is large enough to conaint packet. if (len < packetSize()) { return -1; } while(t.read_ms() < timeout) { if(radio.readable(NRF24L01P_PIPE_P1)) { DBG("%d", t.read_ms()); uint8_t message[packetSize()]; int ret = radio.read(NRF24L01P_PIPE_P1, (char*) message, packetSize()); DBG("RECIEVED %d, %s \r\n", ret, buffer); t.stop(); if(ret>0) { uint8_t encodedLen = message[0]; std::memcpy(buffer, message+1, encodedLen); return encodedLen; } else { return ret; } } } t.stop(); return 0; } int RadioWrapper::write(uint8_t* buffer, uint8_t len) { // check if buffor is small enough to send in one package + len if (len > packetSize()) { return -1; } uint8_t message[packetSize()]; message[0] = len; std::memcpy(message+1, buffer, len); int ret = radio.write(NRF24L01P_PIPE_P0, (char*) message, packetSize()); return ret; } RadioWrapper::RadioWrapper(int channel, unsigned long long rx_address, unsigned long long tx_address) : radio(PB_15, PB_14, PB_13, PB_12, PB_1, PB_2) { radio.powerDown(); radio.powerUp(); radio.setAirDataRate(DATA_RATE); radio.setRfOutputPower(POWER); radio.setRfFrequency(NRF24L01P_MIN_RF_FREQUENCY + 4 * channel); radio.setCrcWidth(NRF24L01P_CRC_8_BIT); radio.setTxAddress(tx_address, 4); radio.setRxAddress(tx_address, 4, NRF24L01P_PIPE_P0); radio.setRxAddress(rx_address, 4, NRF24L01P_PIPE_P1); radio.setTransferSize(packetSize(), NRF24L01P_PIPE_P0); radio.setTransferSize(packetSize(), NRF24L01P_PIPE_P1); radio.setReceiveMode(); radio.enable(); // Display the (default) setup of the nRF24L01+ chip DBG( "nRF24L01+ Frequency : %d MHz\r\n", radio.getRfFrequency() ); DBG( "nRF24L01+ Output power : %d dBm\r\n", radio.getRfOutputPower() ); DBG( "nRF24L01+ Data Rate : %d kbps\r\n", radio.getAirDataRate() ); DBG( "nRF24L01+ TX Address : 0x%010llX\r\n", radio.getTxAddress() ); DBG( "nRF24L01+ RX0 Address : 0x%010llX\r\n", radio.getRxAddress(NRF24L01P_PIPE_P0) ); DBG( "nRF24L01+ RX1 Address : 0x%010llX\r\n", radio.getRxAddress(NRF24L01P_PIPE_P1) ); }