This is a work in progress for an NRF2401P
Dependents: NRF_receiver sender locker4 Weather_Station_Ofiicial ... more
About
This is a simple library to drive the nRF24l01+.
Hardware
This uses the commonly available breakout. The connections are shown below
Software
Use case: For a simple transmitter
tx code snipet
#include "NRF2401P.h" int main() { * * long long addr1=0xAB00CD; // setup address - any 5 byte number - same as RX * int channel =0x12; // [0-126] setup channel, must be same as RX * bool txOK; * char msg[32]; * char ackData[32]; * char len; * * // Setup * NRF2401P nrf1(PTD6,PTD7, PTD5,PTD4, PTC12); //mosi, miso, sclk, csn, ce) * nrf1.quickTxSetup(channel, addr1); // sets nrf24l01+ as transmitter * * // transmit * strcpy (msg, "Hello"); * txOK= nrf1.transmitData(msg,strlen(msg)); * * // read ack data if available * if (nrf1.isAckData()) { * len= nrf1.getRxData(ackData); // len is number of bytes in ackData * } *}
Use case: For a simple receiver
rx code snipet
#include "NRF2401P.h" *int main(){ * * long long addr1=0xAB00CD; // setup address - any 5 byte number - same as TX * int channel =0x12; // [0-126] setup channel, must be same as TX * bool txOK; * char msg[32]; * char ackData[32]; * char len; * * // Setup * NRF2401P nrf1(PTD6,PTD7, PTD5,PTD4, PTC12); //mosi, miso, sclk, csn, ce) * nrf1.quickRxSetup(channel, addr1); // sets nrf24l01+ as receiver, using pipe 1 * * // set ack data * sprintf(ackData,"Ack data"); * nrf1.acknowledgeData(ackData, strlen(ackData),1); // ack for pipe 1 * * // receive * while (! nrf1.isRxData()); // note this blocks until RX data * len= nrf1.getRxData(msg); // gets the message, len is length of msg * *}
NRF2401P.cpp@7:621a5b0cf1aa, 2015-07-05 (annotated)
- Committer:
- nixonkj
- Date:
- Sun Jul 05 22:20:40 2015 +0000
- Revision:
- 7:621a5b0cf1aa
- Parent:
- 6:77ead8abdd1c
- Child:
- 8:3e027705ce23
Doxygen example "template" for setRadio.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
epgmdm | 0:8fd0531ae0be | 1 | /** |
epgmdm | 0:8fd0531ae0be | 2 | *@section DESCRIPTION |
epgmdm | 0:8fd0531ae0be | 3 | * mbed NRF2401+ Library |
epgmdm | 0:8fd0531ae0be | 4 | *@section LICENSE |
epgmdm | 0:8fd0531ae0be | 5 | * Copyright (c) 2015, Malcolm McCulloch |
epgmdm | 0:8fd0531ae0be | 6 | * |
epgmdm | 0:8fd0531ae0be | 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
epgmdm | 0:8fd0531ae0be | 8 | * of this software and associated documentation files (the "Software"), to deal |
epgmdm | 0:8fd0531ae0be | 9 | * in the Software without restriction, including without limitation the rights |
epgmdm | 0:8fd0531ae0be | 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
epgmdm | 0:8fd0531ae0be | 11 | * copies of the Software, and to permit persons to whom the Software is |
epgmdm | 0:8fd0531ae0be | 12 | * furnished to do so, subject to the following conditions: |
epgmdm | 0:8fd0531ae0be | 13 | * |
epgmdm | 0:8fd0531ae0be | 14 | * The above copyright notice and this permission notice shall be included in |
epgmdm | 0:8fd0531ae0be | 15 | * all copies or substantial portions of the Software. |
epgmdm | 0:8fd0531ae0be | 16 | * |
epgmdm | 0:8fd0531ae0be | 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
epgmdm | 0:8fd0531ae0be | 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
epgmdm | 0:8fd0531ae0be | 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
epgmdm | 0:8fd0531ae0be | 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
epgmdm | 0:8fd0531ae0be | 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
epgmdm | 0:8fd0531ae0be | 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
epgmdm | 0:8fd0531ae0be | 23 | * THE SOFTWARE. |
epgmdm | 0:8fd0531ae0be | 24 | * @file "NRF2401P.cpp" |
epgmdm | 0:8fd0531ae0be | 25 | */ |
epgmdm | 2:ca0a3c0bba70 | 26 | #include "mbed.h" |
epgmdm | 2:ca0a3c0bba70 | 27 | #include "NRF2401P.h" |
epgmdm | 2:ca0a3c0bba70 | 28 | #include "nRF24l01.h" |
epgmdm | 0:8fd0531ae0be | 29 | |
epgmdm | 0:8fd0531ae0be | 30 | NRF2401P::NRF2401P ( PinName mosi, PinName miso, PinName sclk, PinName _csn, PinName _ce ) : |
epgmdm | 0:8fd0531ae0be | 31 | csn( DigitalOut( _csn ) ), ce( DigitalOut( _ce ) ) |
epgmdm | 0:8fd0531ae0be | 32 | { |
epgmdm | 0:8fd0531ae0be | 33 | addressWidth = 5; |
epgmdm | 0:8fd0531ae0be | 34 | pc = new Serial( USBTX, USBRX ); // tx, rx |
nixonkj | 6:77ead8abdd1c | 35 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 36 | sprintf(logMsg, "Initialise" ); |
nixonkj | 6:77ead8abdd1c | 37 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 38 | } |
epgmdm | 0:8fd0531ae0be | 39 | spi = new SPI( mosi, miso, sclk, NC ); //SPI (PinName mosi, PinName miso, PinName sclk, PinName _unused=NC) |
epgmdm | 0:8fd0531ae0be | 40 | spi->frequency( 10000000 ); // 1MHZ max 10 MHz |
epgmdm | 0:8fd0531ae0be | 41 | spi->format( 8, 0 ); // 0: 0e 08; 1: 0e 00; 2:0e 00 ;3:1c 00 |
epgmdm | 0:8fd0531ae0be | 42 | csn = 1; |
epgmdm | 0:8fd0531ae0be | 43 | ce = 0; |
epgmdm | 0:8fd0531ae0be | 44 | dynamic = false; |
nixonkj | 6:77ead8abdd1c | 45 | debug = false; |
nixonkj | 6:77ead8abdd1c | 46 | } |
epgmdm | 0:8fd0531ae0be | 47 | |
epgmdm | 0:8fd0531ae0be | 48 | /** |
epgmdm | 0:8fd0531ae0be | 49 | * writes to pc and waits |
epgmdm | 0:8fd0531ae0be | 50 | */ |
nixonkj | 6:77ead8abdd1c | 51 | void NRF2401P::log(char *msg) |
epgmdm | 0:8fd0531ae0be | 52 | { |
epgmdm | 0:8fd0531ae0be | 53 | if(debug) { |
epgmdm | 2:ca0a3c0bba70 | 54 | printf("\t <%s \t %s>\n\r",statusString(), msg); |
epgmdm | 1:ff53b1ac3bad | 55 | wait(0.01); |
nixonkj | 6:77ead8abdd1c | 56 | } |
epgmdm | 0:8fd0531ae0be | 57 | } |
epgmdm | 0:8fd0531ae0be | 58 | |
epgmdm | 0:8fd0531ae0be | 59 | void NRF2401P::scratch() |
epgmdm | 0:8fd0531ae0be | 60 | { |
epgmdm | 0:8fd0531ae0be | 61 | int status = 0; |
epgmdm | 0:8fd0531ae0be | 62 | int register1 = 0; |
epgmdm | 0:8fd0531ae0be | 63 | ce = 0; |
epgmdm | 0:8fd0531ae0be | 64 | for ( char i = 0; i < 24; i++ ) { |
epgmdm | 0:8fd0531ae0be | 65 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 66 | //wait_us(100); |
epgmdm | 0:8fd0531ae0be | 67 | status = spi->write( i ); |
epgmdm | 0:8fd0531ae0be | 68 | register1 = spi->write( 0x00 ); |
epgmdm | 0:8fd0531ae0be | 69 | csn = 1; |
epgmdm | 0:8fd0531ae0be | 70 | sprintf(logMsg, " register %02x (%02x) = %02x", i, status, register1 ); |
epgmdm | 0:8fd0531ae0be | 71 | log(logMsg); |
epgmdm | 0:8fd0531ae0be | 72 | } |
nixonkj | 6:77ead8abdd1c | 73 | } |
epgmdm | 0:8fd0531ae0be | 74 | |
epgmdm | 0:8fd0531ae0be | 75 | /** |
epgmdm | 2:ca0a3c0bba70 | 76 | * start here to configure the basics of the NRF |
epgmdm | 2:ca0a3c0bba70 | 77 | */ |
epgmdm | 2:ca0a3c0bba70 | 78 | void NRF2401P::start() |
epgmdm | 2:ca0a3c0bba70 | 79 | { |
epgmdm | 2:ca0a3c0bba70 | 80 | writeReg( CONFIG, 0x0c ); // set 16 bit crc |
epgmdm | 2:ca0a3c0bba70 | 81 | setTxRetry(0x01,0x0f); // 500 uS, 15 retries |
epgmdm | 2:ca0a3c0bba70 | 82 | setRadio(0,0x03); // 1MB/S 0dB |
epgmdm | 2:ca0a3c0bba70 | 83 | setDynamicPayload(); |
epgmdm | 2:ca0a3c0bba70 | 84 | setChannel(76); // should be clear? |
epgmdm | 2:ca0a3c0bba70 | 85 | setAddressWidth(5); |
epgmdm | 2:ca0a3c0bba70 | 86 | flushRx(); |
epgmdm | 2:ca0a3c0bba70 | 87 | flushTx(); |
epgmdm | 2:ca0a3c0bba70 | 88 | setPwrUp(); |
epgmdm | 2:ca0a3c0bba70 | 89 | setTxMode(); // just make sure no spurious reads.... |
nixonkj | 6:77ead8abdd1c | 90 | } |
epgmdm | 2:ca0a3c0bba70 | 91 | |
epgmdm | 2:ca0a3c0bba70 | 92 | /** |
epgmdm | 0:8fd0531ae0be | 93 | * Sets up a reciever using shockburst and dynamic payload. Uses pipe 1 |
epgmdm | 0:8fd0531ae0be | 94 | * defaults to 5 bytes |
epgmdm | 0:8fd0531ae0be | 95 | */ |
epgmdm | 2:ca0a3c0bba70 | 96 | void NRF2401P::quickRxSetup(int channel,long long addrRx) |
epgmdm | 0:8fd0531ae0be | 97 | { |
epgmdm | 2:ca0a3c0bba70 | 98 | start(); |
epgmdm | 0:8fd0531ae0be | 99 | setChannel(channel); |
epgmdm | 2:ca0a3c0bba70 | 100 | setRxAddress(addrRx,1); |
epgmdm | 0:8fd0531ae0be | 101 | setRxMode(); |
epgmdm | 0:8fd0531ae0be | 102 | ce=1; |
nixonkj | 6:77ead8abdd1c | 103 | wait(0.001f); |
epgmdm | 0:8fd0531ae0be | 104 | } |
nixonkj | 6:77ead8abdd1c | 105 | |
epgmdm | 0:8fd0531ae0be | 106 | /** |
epgmdm | 0:8fd0531ae0be | 107 | * Sets up for receive of a message to address 0XA0A0A0 |
epgmdm | 0:8fd0531ae0be | 108 | */ |
epgmdm | 0:8fd0531ae0be | 109 | char NRF2401P::testReceive() |
epgmdm | 0:8fd0531ae0be | 110 | { |
epgmdm | 0:8fd0531ae0be | 111 | char message[64]; |
epgmdm | 0:8fd0531ae0be | 112 | char width; |
epgmdm | 0:8fd0531ae0be | 113 | int channel = 0x12; |
epgmdm | 0:8fd0531ae0be | 114 | long long addr=0xA0B0C0; |
epgmdm | 0:8fd0531ae0be | 115 | debug = true; |
epgmdm | 0:8fd0531ae0be | 116 | quickRxSetup(channel, addr); |
epgmdm | 0:8fd0531ae0be | 117 | |
epgmdm | 0:8fd0531ae0be | 118 | while (1) { |
epgmdm | 0:8fd0531ae0be | 119 | while (!isRxData()) { |
epgmdm | 0:8fd0531ae0be | 120 | //wait(0.5); |
epgmdm | 0:8fd0531ae0be | 121 | }; |
epgmdm | 0:8fd0531ae0be | 122 | width=getRxData(message); |
epgmdm | 0:8fd0531ae0be | 123 | message[width]='\0'; |
epgmdm | 0:8fd0531ae0be | 124 | sprintf(logMsg,"Received= [%s]",message); |
epgmdm | 0:8fd0531ae0be | 125 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 126 | } |
epgmdm | 0:8fd0531ae0be | 127 | } |
epgmdm | 0:8fd0531ae0be | 128 | |
epgmdm | 0:8fd0531ae0be | 129 | /** |
epgmdm | 2:ca0a3c0bba70 | 130 | * Sets the number and the timimg of TX retries |
epgmdm | 2:ca0a3c0bba70 | 131 | */ |
nixonkj | 6:77ead8abdd1c | 132 | char NRF2401P::setTxRetry(char delay, char numTries) |
epgmdm | 2:ca0a3c0bba70 | 133 | { |
epgmdm | 2:ca0a3c0bba70 | 134 | char val = (delay&0xf)<<4 | (numTries&0xf); |
nixonkj | 6:77ead8abdd1c | 135 | char chk; |
epgmdm | 2:ca0a3c0bba70 | 136 | writeReg (SETUP_RETR, val); |
nixonkj | 6:77ead8abdd1c | 137 | readReg( SETUP_RETR, &chk ); |
nixonkj | 6:77ead8abdd1c | 138 | if (chk&0xff == val) { |
nixonkj | 6:77ead8abdd1c | 139 | return 0; |
nixonkj | 6:77ead8abdd1c | 140 | } else { |
nixonkj | 6:77ead8abdd1c | 141 | return 1; |
nixonkj | 6:77ead8abdd1c | 142 | } |
epgmdm | 2:ca0a3c0bba70 | 143 | } |
epgmdm | 2:ca0a3c0bba70 | 144 | |
epgmdm | 2:ca0a3c0bba70 | 145 | /** |
epgmdm | 0:8fd0531ae0be | 146 | * Sets up a transmitter using shockburst and dynamic payload. Uses pipe 1 |
epgmdm | 0:8fd0531ae0be | 147 | * defaults to 5 bytes |
epgmdm | 0:8fd0531ae0be | 148 | */ |
epgmdm | 0:8fd0531ae0be | 149 | void NRF2401P::quickTxSetup(int channel,long long addr) |
epgmdm | 0:8fd0531ae0be | 150 | { |
epgmdm | 2:ca0a3c0bba70 | 151 | start(); |
epgmdm | 0:8fd0531ae0be | 152 | setChannel(channel); |
epgmdm | 2:ca0a3c0bba70 | 153 | setTxAddress(addr); |
epgmdm | 0:8fd0531ae0be | 154 | setTxMode(); |
epgmdm | 0:8fd0531ae0be | 155 | ce=1; |
epgmdm | 0:8fd0531ae0be | 156 | wait (0.0016f); // wait for pll to settle |
epgmdm | 0:8fd0531ae0be | 157 | } |
epgmdm | 0:8fd0531ae0be | 158 | |
epgmdm | 0:8fd0531ae0be | 159 | /** |
epgmdm | 0:8fd0531ae0be | 160 | * Sets up for transmit of a message to address 0XA0A0A0 |
epgmdm | 0:8fd0531ae0be | 161 | */ |
epgmdm | 0:8fd0531ae0be | 162 | char NRF2401P::testTransmit() |
epgmdm | 0:8fd0531ae0be | 163 | { |
epgmdm | 0:8fd0531ae0be | 164 | long long addr=0xA0B0C0; |
epgmdm | 0:8fd0531ae0be | 165 | int channel = 0x12; |
epgmdm | 0:8fd0531ae0be | 166 | char data[32] ; |
epgmdm | 0:8fd0531ae0be | 167 | int i=0; |
epgmdm | 0:8fd0531ae0be | 168 | quickRxSetup(channel, addr); |
epgmdm | 0:8fd0531ae0be | 169 | while (1) { |
epgmdm | 0:8fd0531ae0be | 170 | sprintf(data," packet %03d", i++ |100); |
epgmdm | 0:8fd0531ae0be | 171 | transmitData(data,18); |
epgmdm | 0:8fd0531ae0be | 172 | wait (1.0); |
epgmdm | 0:8fd0531ae0be | 173 | } |
nixonkj | 6:77ead8abdd1c | 174 | } |
epgmdm | 0:8fd0531ae0be | 175 | |
nixonkj | 6:77ead8abdd1c | 176 | char NRF2401P::setRadio(char speed, char power) |
epgmdm | 0:8fd0531ae0be | 177 | { |
nixonkj | 6:77ead8abdd1c | 178 | char val=0, chk=0; |
epgmdm | 0:8fd0531ae0be | 179 | sprintf(logMsg, "Set radio"); |
epgmdm | 0:8fd0531ae0be | 180 | log(logMsg); |
epgmdm | 0:8fd0531ae0be | 181 | if (speed & 0x02) { |
epgmdm | 0:8fd0531ae0be | 182 | val |= (1<<5); |
epgmdm | 0:8fd0531ae0be | 183 | } |
epgmdm | 0:8fd0531ae0be | 184 | val |= (speed & 0x01)<<3; |
epgmdm | 0:8fd0531ae0be | 185 | |
nixonkj | 6:77ead8abdd1c | 186 | val |= ((power & 0x03)<<1); |
nixonkj | 6:77ead8abdd1c | 187 | printf("\n\r"); |
nixonkj | 6:77ead8abdd1c | 188 | |
nixonkj | 6:77ead8abdd1c | 189 | writeReg (0x06, val); |
epgmdm | 0:8fd0531ae0be | 190 | |
nixonkj | 6:77ead8abdd1c | 191 | // read register to verify settings |
nixonkj | 6:77ead8abdd1c | 192 | readReg( 0x06, &chk ); |
nixonkj | 6:77ead8abdd1c | 193 | if (chk&0x2E == val) { |
nixonkj | 6:77ead8abdd1c | 194 | return 0; |
nixonkj | 6:77ead8abdd1c | 195 | } else { |
nixonkj | 6:77ead8abdd1c | 196 | return 1; |
nixonkj | 6:77ead8abdd1c | 197 | } |
epgmdm | 0:8fd0531ae0be | 198 | } |
nixonkj | 6:77ead8abdd1c | 199 | |
epgmdm | 0:8fd0531ae0be | 200 | /** |
epgmdm | 0:8fd0531ae0be | 201 | Set RF_CH = chan; |
epgmdm | 0:8fd0531ae0be | 202 | |
epgmdm | 0:8fd0531ae0be | 203 | F0= 2400 + chan [MHz] |
epgmdm | 0:8fd0531ae0be | 204 | */ |
epgmdm | 0:8fd0531ae0be | 205 | char NRF2401P::setChannel(char chan) |
epgmdm | 0:8fd0531ae0be | 206 | { |
nixonkj | 6:77ead8abdd1c | 207 | char chk=0; |
nixonkj | 6:77ead8abdd1c | 208 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 209 | sprintf(logMsg, "Set channel"); |
nixonkj | 6:77ead8abdd1c | 210 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 211 | } |
epgmdm | 0:8fd0531ae0be | 212 | writeReg (0x05,(chan&0x7f)); |
nixonkj | 6:77ead8abdd1c | 213 | readReg(0x05,&chk); |
nixonkj | 6:77ead8abdd1c | 214 | if (chk&0x7f == chan&0x7f) { |
nixonkj | 6:77ead8abdd1c | 215 | return 0; |
nixonkj | 6:77ead8abdd1c | 216 | } else { |
nixonkj | 6:77ead8abdd1c | 217 | return 1; |
nixonkj | 6:77ead8abdd1c | 218 | } |
epgmdm | 0:8fd0531ae0be | 219 | } |
nixonkj | 6:77ead8abdd1c | 220 | |
epgmdm | 0:8fd0531ae0be | 221 | /** |
epgmdm | 0:8fd0531ae0be | 222 | * Transmits width bytes of data. width <32 |
epgmdm | 0:8fd0531ae0be | 223 | */ |
nixonkj | 6:77ead8abdd1c | 224 | char NRF2401P::transmitData( char *data, char width ) |
epgmdm | 0:8fd0531ae0be | 225 | { |
nixonkj | 6:77ead8abdd1c | 226 | if (width>32) |
nixonkj | 6:77ead8abdd1c | 227 | return 0; |
nixonkj | 6:77ead8abdd1c | 228 | checkStatus(); |
nixonkj | 6:77ead8abdd1c | 229 | if ((status>>4)&1) { // Max retries - flush tx |
nixonkj | 6:77ead8abdd1c | 230 | flushTx(); |
nixonkj | 6:77ead8abdd1c | 231 | } |
epgmdm | 2:ca0a3c0bba70 | 232 | //clearStatus(); |
epgmdm | 2:ca0a3c0bba70 | 233 | //ce = 1; |
epgmdm | 0:8fd0531ae0be | 234 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 235 | char address = 0XA0; |
epgmdm | 0:8fd0531ae0be | 236 | int i; |
epgmdm | 0:8fd0531ae0be | 237 | // set up for writing |
epgmdm | 0:8fd0531ae0be | 238 | status = spi->write( address ); |
epgmdm | 0:8fd0531ae0be | 239 | for ( i = 0; i <width; i++ ) { |
epgmdm | 0:8fd0531ae0be | 240 | spi->write( data[ i ] ); |
epgmdm | 0:8fd0531ae0be | 241 | } |
epgmdm | 0:8fd0531ae0be | 242 | csn = 1; |
epgmdm | 3:afe8d307b5c3 | 243 | wait(0.001); |
epgmdm | 3:afe8d307b5c3 | 244 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 245 | sprintf(logMsg, " Transmit data %d bytes to %02x (%02x) = %10s", width, address, status, data ); |
epgmdm | 3:afe8d307b5c3 | 246 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 247 | } |
epgmdm | 0:8fd0531ae0be | 248 | return status; |
epgmdm | 0:8fd0531ae0be | 249 | } |
epgmdm | 0:8fd0531ae0be | 250 | |
epgmdm | 0:8fd0531ae0be | 251 | /** |
epgmdm | 0:8fd0531ae0be | 252 | * sets acknowledge data width bytes of data. width <32 |
epgmdm | 0:8fd0531ae0be | 253 | */ |
epgmdm | 1:ff53b1ac3bad | 254 | char NRF2401P::acknowledgeData( char *data, char width, char pipe ) |
epgmdm | 0:8fd0531ae0be | 255 | { |
epgmdm | 0:8fd0531ae0be | 256 | ce = 1; |
epgmdm | 0:8fd0531ae0be | 257 | csn = 0; |
epgmdm | 2:ca0a3c0bba70 | 258 | //writeReg(0x1d,0x06); // enable payload with ack |
epgmdm | 2:ca0a3c0bba70 | 259 | char address = W_ACK_PAYLOAD | (pipe&0x07); |
epgmdm | 0:8fd0531ae0be | 260 | int i; |
epgmdm | 0:8fd0531ae0be | 261 | // set up for writing |
epgmdm | 3:afe8d307b5c3 | 262 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 263 | status = spi->write( address ); |
epgmdm | 0:8fd0531ae0be | 264 | for ( i = 0; i <width; i++ ) { |
epgmdm | 0:8fd0531ae0be | 265 | spi->write( data[ i ] ); |
epgmdm | 0:8fd0531ae0be | 266 | } |
epgmdm | 0:8fd0531ae0be | 267 | csn = 1; |
epgmdm | 3:afe8d307b5c3 | 268 | if (debug) { |
epgmdm | 3:afe8d307b5c3 | 269 | sprintf(logMsg, " acknowledge data %d bytes to %02x (%02x) = %c", width, address, status, *data ); |
epgmdm | 3:afe8d307b5c3 | 270 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 271 | } |
epgmdm | 0:8fd0531ae0be | 272 | return status; |
nixonkj | 6:77ead8abdd1c | 273 | } |
epgmdm | 0:8fd0531ae0be | 274 | |
epgmdm | 0:8fd0531ae0be | 275 | /** |
epgmdm | 0:8fd0531ae0be | 276 | * Writes 1 byte data to a register |
epgmdm | 0:8fd0531ae0be | 277 | **/ |
nixonkj | 6:77ead8abdd1c | 278 | void NRF2401P::writeReg( char address, char data ) |
epgmdm | 0:8fd0531ae0be | 279 | { |
epgmdm | 0:8fd0531ae0be | 280 | char status = 0; |
epgmdm | 0:8fd0531ae0be | 281 | char reg; |
epgmdm | 0:8fd0531ae0be | 282 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 283 | address &= 0x1F; |
epgmdm | 0:8fd0531ae0be | 284 | reg = address | 0x20; |
epgmdm | 0:8fd0531ae0be | 285 | status = spi->write( reg ); |
epgmdm | 0:8fd0531ae0be | 286 | spi->write( data ); |
epgmdm | 0:8fd0531ae0be | 287 | csn = 1; |
nixonkj | 6:77ead8abdd1c | 288 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 289 | sprintf(logMsg, " register write %02x (%02x) = %02x", address, status, data ); |
nixonkj | 6:77ead8abdd1c | 290 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 291 | } |
epgmdm | 0:8fd0531ae0be | 292 | } |
nixonkj | 6:77ead8abdd1c | 293 | |
epgmdm | 0:8fd0531ae0be | 294 | /** |
epgmdm | 0:8fd0531ae0be | 295 | * Writes width bytes data to a register, ls byte to ms byte /for adressess |
epgmdm | 0:8fd0531ae0be | 296 | **/ |
nixonkj | 6:77ead8abdd1c | 297 | void NRF2401P::writeReg( char address, char *data, char width ) |
epgmdm | 0:8fd0531ae0be | 298 | { |
epgmdm | 0:8fd0531ae0be | 299 | char reg; |
epgmdm | 0:8fd0531ae0be | 300 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 301 | int i; |
epgmdm | 0:8fd0531ae0be | 302 | // set up for writing |
epgmdm | 0:8fd0531ae0be | 303 | address &= 0x1F; |
epgmdm | 0:8fd0531ae0be | 304 | reg = address| 0x20; |
epgmdm | 0:8fd0531ae0be | 305 | status = spi->write( reg ); |
epgmdm | 0:8fd0531ae0be | 306 | for ( i = width - 1; i >= 0; i-- ) { |
epgmdm | 0:8fd0531ae0be | 307 | spi->write( data[ i ] ); |
epgmdm | 0:8fd0531ae0be | 308 | } |
epgmdm | 0:8fd0531ae0be | 309 | csn = 1; |
epgmdm | 2:ca0a3c0bba70 | 310 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 311 | sprintf(logMsg, " register write %d bytes to %02x (%02x) = %02x %02x %02x", width, address, status, data[0], data[1], data[2] ); |
epgmdm | 2:ca0a3c0bba70 | 312 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 313 | } |
epgmdm | 0:8fd0531ae0be | 314 | } |
nixonkj | 6:77ead8abdd1c | 315 | |
epgmdm | 0:8fd0531ae0be | 316 | /** |
epgmdm | 0:8fd0531ae0be | 317 | * Reads 1 byte from a register |
epgmdm | 0:8fd0531ae0be | 318 | **/ |
nixonkj | 6:77ead8abdd1c | 319 | void NRF2401P::readReg( char address, char *data ) |
epgmdm | 0:8fd0531ae0be | 320 | { |
epgmdm | 0:8fd0531ae0be | 321 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 322 | address &= 0x1F; |
epgmdm | 0:8fd0531ae0be | 323 | status = spi->write( address ); |
epgmdm | 0:8fd0531ae0be | 324 | *data = spi->write( 0x00 ); |
epgmdm | 0:8fd0531ae0be | 325 | csn = 1; |
nixonkj | 6:77ead8abdd1c | 326 | if (debug && address != 0x07) { // In debug mode: print out anything other than a status request |
nixonkj | 6:77ead8abdd1c | 327 | sprintf(logMsg, " register read %02x (%02x) = %02x", address, status, *data ); |
nixonkj | 6:77ead8abdd1c | 328 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 329 | } |
epgmdm | 0:8fd0531ae0be | 330 | } |
nixonkj | 6:77ead8abdd1c | 331 | |
epgmdm | 0:8fd0531ae0be | 332 | /** |
epgmdm | 0:8fd0531ae0be | 333 | * Clears the status flags RX_DR, TX_DS, MAX_RT |
epgmdm | 0:8fd0531ae0be | 334 | */ |
nixonkj | 6:77ead8abdd1c | 335 | void NRF2401P::clearStatus() |
epgmdm | 0:8fd0531ae0be | 336 | { |
nixonkj | 6:77ead8abdd1c | 337 | writeReg(STATUS,0x70); |
epgmdm | 2:ca0a3c0bba70 | 338 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 339 | sprintf(logMsg, "Clear status (%02x)", status ); |
epgmdm | 2:ca0a3c0bba70 | 340 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 341 | } |
epgmdm | 0:8fd0531ae0be | 342 | } |
nixonkj | 6:77ead8abdd1c | 343 | |
epgmdm | 0:8fd0531ae0be | 344 | /** |
epgmdm | 0:8fd0531ae0be | 345 | * flushes TX FIFO and resets status flags |
epgmdm | 0:8fd0531ae0be | 346 | */ |
nixonkj | 6:77ead8abdd1c | 347 | void NRF2401P::flushTx() |
epgmdm | 0:8fd0531ae0be | 348 | { |
epgmdm | 0:8fd0531ae0be | 349 | csn = 0; |
epgmdm | 2:ca0a3c0bba70 | 350 | status = spi->write( FLUSH_TX ); |
epgmdm | 0:8fd0531ae0be | 351 | csn = 1; |
epgmdm | 0:8fd0531ae0be | 352 | clearStatus(); |
epgmdm | 2:ca0a3c0bba70 | 353 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 354 | sprintf(logMsg, "Flush TX FIFO (%02x)", status ); |
epgmdm | 2:ca0a3c0bba70 | 355 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 356 | } |
epgmdm | 0:8fd0531ae0be | 357 | } |
epgmdm | 0:8fd0531ae0be | 358 | |
epgmdm | 0:8fd0531ae0be | 359 | /** |
epgmdm | 0:8fd0531ae0be | 360 | * flushes RX FIFO and resets status flags |
epgmdm | 0:8fd0531ae0be | 361 | */ |
nixonkj | 6:77ead8abdd1c | 362 | void NRF2401P::flushRx() |
epgmdm | 0:8fd0531ae0be | 363 | { |
epgmdm | 0:8fd0531ae0be | 364 | csn = 0; |
epgmdm | 2:ca0a3c0bba70 | 365 | status = spi->write( FLUSH_RX ); |
epgmdm | 0:8fd0531ae0be | 366 | csn = 1; |
epgmdm | 2:ca0a3c0bba70 | 367 | clearStatus(); |
epgmdm | 2:ca0a3c0bba70 | 368 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 369 | sprintf(logMsg, "Flush RX FIFO (%02x)", status ); |
epgmdm | 2:ca0a3c0bba70 | 370 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 371 | } |
epgmdm | 0:8fd0531ae0be | 372 | } |
nixonkj | 6:77ead8abdd1c | 373 | |
epgmdm | 0:8fd0531ae0be | 374 | /** |
epgmdm | 0:8fd0531ae0be | 375 | * Sets PRIM_RX = 0; |
epgmdm | 0:8fd0531ae0be | 376 | */ |
nixonkj | 6:77ead8abdd1c | 377 | char NRF2401P::setTxMode() |
epgmdm | 0:8fd0531ae0be | 378 | { |
epgmdm | 0:8fd0531ae0be | 379 | char data; |
epgmdm | 0:8fd0531ae0be | 380 | char bit; |
epgmdm | 2:ca0a3c0bba70 | 381 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 382 | sprintf(logMsg, "Set Tx Mode"); |
epgmdm | 2:ca0a3c0bba70 | 383 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 384 | } |
epgmdm | 2:ca0a3c0bba70 | 385 | readReg( CONFIG, &data ); |
epgmdm | 0:8fd0531ae0be | 386 | data &= ~( 1 << 0 ); |
epgmdm | 2:ca0a3c0bba70 | 387 | flushTx(); |
epgmdm | 2:ca0a3c0bba70 | 388 | flushRx(); |
epgmdm | 2:ca0a3c0bba70 | 389 | writeReg( CONFIG, data ); |
epgmdm | 3:afe8d307b5c3 | 390 | writeReg( RX_ADDR_P0, txAdd, addressWidth ); // reset p0 |
epgmdm | 2:ca0a3c0bba70 | 391 | writeReg(EN_RXADDR,0x01); // enable pipe 0 for reading |
epgmdm | 0:8fd0531ae0be | 392 | // check |
epgmdm | 0:8fd0531ae0be | 393 | readReg( 0x00, &data ); |
epgmdm | 0:8fd0531ae0be | 394 | bit = ( data >> 0 ) & 1; |
epgmdm | 2:ca0a3c0bba70 | 395 | |
epgmdm | 0:8fd0531ae0be | 396 | ce=1; |
epgmdm | 0:8fd0531ae0be | 397 | wait(0.003); |
nixonkj | 6:77ead8abdd1c | 398 | if (bit == 0) { |
nixonkj | 6:77ead8abdd1c | 399 | return 0; |
nixonkj | 6:77ead8abdd1c | 400 | } else { |
nixonkj | 6:77ead8abdd1c | 401 | return 1; |
nixonkj | 6:77ead8abdd1c | 402 | } |
epgmdm | 0:8fd0531ae0be | 403 | } |
epgmdm | 0:8fd0531ae0be | 404 | |
epgmdm | 0:8fd0531ae0be | 405 | /** |
epgmdm | 0:8fd0531ae0be | 406 | * Sets the number of bytes of the address width = 3,4,5 |
epgmdm | 0:8fd0531ae0be | 407 | */ |
nixonkj | 6:77ead8abdd1c | 408 | char NRF2401P::setAddressWidth( char width ) |
epgmdm | 0:8fd0531ae0be | 409 | { |
nixonkj | 6:77ead8abdd1c | 410 | char chk=0; |
epgmdm | 0:8fd0531ae0be | 411 | addressWidth = width; |
epgmdm | 0:8fd0531ae0be | 412 | if ( ( width > 5 ) || ( width < 3 ) ) |
epgmdm | 0:8fd0531ae0be | 413 | return false; |
epgmdm | 0:8fd0531ae0be | 414 | width -= 2; |
nixonkj | 6:77ead8abdd1c | 415 | writeReg( 0x03, width ); |
nixonkj | 6:77ead8abdd1c | 416 | readReg( 0x03, &chk ); |
nixonkj | 6:77ead8abdd1c | 417 | if (chk&0x03 == width) { |
nixonkj | 6:77ead8abdd1c | 418 | return 0; |
nixonkj | 6:77ead8abdd1c | 419 | } else { |
nixonkj | 6:77ead8abdd1c | 420 | return 1; |
nixonkj | 6:77ead8abdd1c | 421 | } |
epgmdm | 0:8fd0531ae0be | 422 | } |
nixonkj | 6:77ead8abdd1c | 423 | |
epgmdm | 0:8fd0531ae0be | 424 | /** |
nixonkj | 6:77ead8abdd1c | 425 | * Sets the address, uses address width set (either 3,4 or 5) |
epgmdm | 0:8fd0531ae0be | 426 | */ |
epgmdm | 0:8fd0531ae0be | 427 | char NRF2401P::setTxAddress( char *address ) |
epgmdm | 0:8fd0531ae0be | 428 | { |
epgmdm | 2:ca0a3c0bba70 | 429 | memcpy (txAdd,address, addressWidth); |
epgmdm | 0:8fd0531ae0be | 430 | writeReg( 0x0A, address, addressWidth ); //Write to RX_ADDR_P0 |
nixonkj | 6:77ead8abdd1c | 431 | writeReg( 0x10, address, addressWidth ); //Write to TX_ADDR |
nixonkj | 6:77ead8abdd1c | 432 | return 0; // must fix this |
epgmdm | 0:8fd0531ae0be | 433 | } |
epgmdm | 0:8fd0531ae0be | 434 | |
epgmdm | 0:8fd0531ae0be | 435 | /** |
epgmdm | 0:8fd0531ae0be | 436 | * Sets the address, uses addess width set (either 3,4 or 5) |
epgmdm | 0:8fd0531ae0be | 437 | */ |
epgmdm | 0:8fd0531ae0be | 438 | char NRF2401P::setTxAddress( long long address ) |
epgmdm | 0:8fd0531ae0be | 439 | { |
epgmdm | 0:8fd0531ae0be | 440 | char buff[ 5 ]; |
epgmdm | 0:8fd0531ae0be | 441 | buff[ 0 ] = address & 0xff; |
epgmdm | 0:8fd0531ae0be | 442 | buff[ 1 ] = ( address >> 8 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 443 | buff[ 2 ] = ( address >> 16 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 444 | buff[ 3 ] = ( address >> 24 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 445 | buff[ 4 ] = ( address >> 32 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 446 | return setTxAddress( buff ); |
epgmdm | 0:8fd0531ae0be | 447 | } |
epgmdm | 0:8fd0531ae0be | 448 | |
epgmdm | 0:8fd0531ae0be | 449 | /** |
epgmdm | 0:8fd0531ae0be | 450 | * Sets the address, uses addess width set (either 3,4 or 5) |
epgmdm | 2:ca0a3c0bba70 | 451 | * Enables pipe for receiving; |
epgmdm | 0:8fd0531ae0be | 452 | */ |
epgmdm | 0:8fd0531ae0be | 453 | char NRF2401P::setRxAddress( char *address, char pipe ) |
epgmdm | 0:8fd0531ae0be | 454 | { |
epgmdm | 2:ca0a3c0bba70 | 455 | if(debug) { |
epgmdm | 2:ca0a3c0bba70 | 456 | log ("Set Rx Address"); |
epgmdm | 2:ca0a3c0bba70 | 457 | } |
epgmdm | 2:ca0a3c0bba70 | 458 | if (pipe>5) return 0xff; |
epgmdm | 2:ca0a3c0bba70 | 459 | if (pipe ==0) { |
epgmdm | 2:ca0a3c0bba70 | 460 | memcpy (pipe0Add,address, addressWidth); |
epgmdm | 2:ca0a3c0bba70 | 461 | } |
epgmdm | 2:ca0a3c0bba70 | 462 | |
epgmdm | 0:8fd0531ae0be | 463 | char reg = 0x0A + pipe; |
epgmdm | 0:8fd0531ae0be | 464 | switch ( pipe ) { |
epgmdm | 0:8fd0531ae0be | 465 | case ( 0 ) : |
epgmdm | 0:8fd0531ae0be | 466 | case ( 1 ) : { |
nixonkj | 6:77ead8abdd1c | 467 | writeReg( reg, address, addressWidth ); //Write to RX_ADDR_P0 or _P1 |
epgmdm | 0:8fd0531ae0be | 468 | break; |
epgmdm | 0:8fd0531ae0be | 469 | } |
epgmdm | 0:8fd0531ae0be | 470 | case ( 2 ) : |
epgmdm | 0:8fd0531ae0be | 471 | case ( 3 ) : |
epgmdm | 0:8fd0531ae0be | 472 | case ( 4 ) : |
epgmdm | 0:8fd0531ae0be | 473 | case ( 5 ) : { |
nixonkj | 6:77ead8abdd1c | 474 | writeReg( reg, address, 1 ); //Write to RX_ADDR_P2 ... _P5 |
epgmdm | 0:8fd0531ae0be | 475 | break; |
epgmdm | 0:8fd0531ae0be | 476 | } |
epgmdm | 0:8fd0531ae0be | 477 | |
epgmdm | 0:8fd0531ae0be | 478 | } |
epgmdm | 2:ca0a3c0bba70 | 479 | readReg(EN_RXADDR,®); |
epgmdm | 2:ca0a3c0bba70 | 480 | reg |= (1<<pipe); |
epgmdm | 2:ca0a3c0bba70 | 481 | writeReg( EN_RXADDR,reg ); //Enable the pipe |
nixonkj | 6:77ead8abdd1c | 482 | return 0; // Must fix this |
epgmdm | 0:8fd0531ae0be | 483 | } |
epgmdm | 0:8fd0531ae0be | 484 | |
epgmdm | 0:8fd0531ae0be | 485 | /** |
epgmdm | 0:8fd0531ae0be | 486 | * Sets the address of pipe (<=5), uses addess width set (either 3,4 or 5) |
epgmdm | 0:8fd0531ae0be | 487 | */ |
epgmdm | 0:8fd0531ae0be | 488 | char NRF2401P::setRxAddress( long long address, char pipe ) |
epgmdm | 0:8fd0531ae0be | 489 | { |
epgmdm | 0:8fd0531ae0be | 490 | char buff[ 5 ]; |
epgmdm | 0:8fd0531ae0be | 491 | buff[ 0 ] = address & 0xff; |
epgmdm | 0:8fd0531ae0be | 492 | buff[ 1 ] = ( address >> 8 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 493 | buff[ 2 ] = ( address >> 16 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 494 | buff[ 3 ] = ( address >> 24 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 495 | buff[ 4 ] = ( address >> 32 ) & 0xFF; |
epgmdm | 0:8fd0531ae0be | 496 | return setRxAddress( buff, pipe ); |
epgmdm | 0:8fd0531ae0be | 497 | } |
nixonkj | 6:77ead8abdd1c | 498 | |
epgmdm | 1:ff53b1ac3bad | 499 | /** |
epgmdm | 1:ff53b1ac3bad | 500 | *checks the status flag |
epgmdm | 1:ff53b1ac3bad | 501 | */ |
epgmdm | 1:ff53b1ac3bad | 502 | char NRF2401P::checkStatus() |
epgmdm | 1:ff53b1ac3bad | 503 | { |
epgmdm | 1:ff53b1ac3bad | 504 | readReg(0x07,&status); |
epgmdm | 1:ff53b1ac3bad | 505 | return status; |
epgmdm | 1:ff53b1ac3bad | 506 | } |
nixonkj | 6:77ead8abdd1c | 507 | |
epgmdm | 1:ff53b1ac3bad | 508 | /** |
epgmdm | 1:ff53b1ac3bad | 509 | * checks if Ack data available. |
epgmdm | 1:ff53b1ac3bad | 510 | */ |
epgmdm | 1:ff53b1ac3bad | 511 | bool NRF2401P::isAckData() |
epgmdm | 1:ff53b1ac3bad | 512 | { |
epgmdm | 1:ff53b1ac3bad | 513 | char fifo; |
epgmdm | 1:ff53b1ac3bad | 514 | readReg(0x17,&fifo); |
epgmdm | 1:ff53b1ac3bad | 515 | bool isData = !(fifo&0x01); |
epgmdm | 1:ff53b1ac3bad | 516 | return isData; |
epgmdm | 1:ff53b1ac3bad | 517 | } |
epgmdm | 0:8fd0531ae0be | 518 | |
epgmdm | 1:ff53b1ac3bad | 519 | /** |
epgmdm | 1:ff53b1ac3bad | 520 | * checks if RX data available. |
epgmdm | 1:ff53b1ac3bad | 521 | */ |
epgmdm | 0:8fd0531ae0be | 522 | bool NRF2401P::isRxData() |
epgmdm | 0:8fd0531ae0be | 523 | { |
epgmdm | 1:ff53b1ac3bad | 524 | checkStatus(); |
epgmdm | 0:8fd0531ae0be | 525 | bool isData = (status>>6)&0x01; |
epgmdm | 0:8fd0531ae0be | 526 | return isData; |
epgmdm | 0:8fd0531ae0be | 527 | } |
nixonkj | 6:77ead8abdd1c | 528 | |
epgmdm | 0:8fd0531ae0be | 529 | /** |
epgmdm | 0:8fd0531ae0be | 530 | * returns the width of the dynamic payload |
epgmdm | 0:8fd0531ae0be | 531 | */ |
epgmdm | 0:8fd0531ae0be | 532 | char NRF2401P::getRxWidth() |
epgmdm | 0:8fd0531ae0be | 533 | { |
epgmdm | 0:8fd0531ae0be | 534 | char width; |
epgmdm | 0:8fd0531ae0be | 535 | if (dynamic) { |
epgmdm | 0:8fd0531ae0be | 536 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 537 | status = spi->write( 0x60 ); |
epgmdm | 0:8fd0531ae0be | 538 | width = spi->write(0x00); |
epgmdm | 0:8fd0531ae0be | 539 | csn = 1; |
epgmdm | 0:8fd0531ae0be | 540 | |
epgmdm | 0:8fd0531ae0be | 541 | if (width>32) { |
epgmdm | 0:8fd0531ae0be | 542 | flushRx(); |
epgmdm | 0:8fd0531ae0be | 543 | width=0; |
epgmdm | 0:8fd0531ae0be | 544 | } |
epgmdm | 0:8fd0531ae0be | 545 | } else { |
nixonkj | 6:77ead8abdd1c | 546 | readReg(0x12,&width); // width of p1 |
epgmdm | 0:8fd0531ae0be | 547 | } |
epgmdm | 1:ff53b1ac3bad | 548 | // width=18; |
epgmdm | 0:8fd0531ae0be | 549 | return width; |
epgmdm | 0:8fd0531ae0be | 550 | } |
nixonkj | 6:77ead8abdd1c | 551 | |
epgmdm | 0:8fd0531ae0be | 552 | /** |
epgmdm | 0:8fd0531ae0be | 553 | * return message in buffer, mem for buffer must have been allocated. |
epgmdm | 0:8fd0531ae0be | 554 | * Return value is number of bytes of buffer |
epgmdm | 0:8fd0531ae0be | 555 | */ |
epgmdm | 0:8fd0531ae0be | 556 | char NRF2401P::getRxData(char * buffer) |
epgmdm | 0:8fd0531ae0be | 557 | { |
epgmdm | 0:8fd0531ae0be | 558 | char address = 0x61; |
epgmdm | 0:8fd0531ae0be | 559 | char width; |
epgmdm | 0:8fd0531ae0be | 560 | width = getRxWidth(); |
epgmdm | 0:8fd0531ae0be | 561 | bool isData = (status>>6)&0x01; |
epgmdm | 0:8fd0531ae0be | 562 | if (isData) { |
epgmdm | 0:8fd0531ae0be | 563 | csn = 0; |
epgmdm | 0:8fd0531ae0be | 564 | int i; |
epgmdm | 0:8fd0531ae0be | 565 | // set up for reading |
epgmdm | 0:8fd0531ae0be | 566 | status = spi->write( address ); |
epgmdm | 0:8fd0531ae0be | 567 | for ( i = 0; i <= width; i++ ) { |
epgmdm | 0:8fd0531ae0be | 568 | buffer[i]=spi->write(0x00 ); |
epgmdm | 0:8fd0531ae0be | 569 | } |
epgmdm | 0:8fd0531ae0be | 570 | csn = 1; |
nixonkj | 6:77ead8abdd1c | 571 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 572 | sprintf(logMsg, "Receive data %d bytes", width ); |
nixonkj | 6:77ead8abdd1c | 573 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 574 | } |
epgmdm | 0:8fd0531ae0be | 575 | clearStatus(); |
epgmdm | 0:8fd0531ae0be | 576 | return width; |
epgmdm | 0:8fd0531ae0be | 577 | } else { |
nixonkj | 6:77ead8abdd1c | 578 | if (debug) { |
nixonkj | 6:77ead8abdd1c | 579 | sprintf(logMsg, "Receive NO data %d bytes", width ); |
nixonkj | 6:77ead8abdd1c | 580 | log(logMsg); |
nixonkj | 6:77ead8abdd1c | 581 | } |
epgmdm | 0:8fd0531ae0be | 582 | clearStatus(); |
epgmdm | 0:8fd0531ae0be | 583 | return 0; |
epgmdm | 0:8fd0531ae0be | 584 | } |
epgmdm | 0:8fd0531ae0be | 585 | } |
epgmdm | 0:8fd0531ae0be | 586 | |
epgmdm | 0:8fd0531ae0be | 587 | /** |
epgmdm | 0:8fd0531ae0be | 588 | * Sets all the receive pipes to dynamic payload length |
epgmdm | 0:8fd0531ae0be | 589 | */ |
epgmdm | 2:ca0a3c0bba70 | 590 | void NRF2401P::setDynamicPayload() |
epgmdm | 0:8fd0531ae0be | 591 | { |
epgmdm | 0:8fd0531ae0be | 592 | dynamic = true; |
epgmdm | 2:ca0a3c0bba70 | 593 | writeReg(FEATURE,0x07); // Enable Dyn payload, Payload with Ack and w_tx_noack command |
epgmdm | 2:ca0a3c0bba70 | 594 | writeReg(EN_AA,0x3f); // EN_AA regi for P1 and P0 |
epgmdm | 2:ca0a3c0bba70 | 595 | writeReg(DYNPD, 0x1F); |
epgmdm | 0:8fd0531ae0be | 596 | } |
epgmdm | 2:ca0a3c0bba70 | 597 | |
epgmdm | 0:8fd0531ae0be | 598 | /** |
epgmdm | 0:8fd0531ae0be | 599 | * Sets PWR_UP = 1; |
nixonkj | 6:77ead8abdd1c | 600 | * return 0 on success |
epgmdm | 0:8fd0531ae0be | 601 | */ |
nixonkj | 6:77ead8abdd1c | 602 | char NRF2401P::setPwrUp() |
epgmdm | 0:8fd0531ae0be | 603 | { |
epgmdm | 0:8fd0531ae0be | 604 | char data; |
epgmdm | 0:8fd0531ae0be | 605 | char bit; |
epgmdm | 0:8fd0531ae0be | 606 | ce=1; |
epgmdm | 2:ca0a3c0bba70 | 607 | readReg( CONFIG, &data ); |
epgmdm | 2:ca0a3c0bba70 | 608 | if ((data>>1) &0x01) { |
epgmdm | 2:ca0a3c0bba70 | 609 | return true; // Already powered up |
epgmdm | 2:ca0a3c0bba70 | 610 | }; |
epgmdm | 0:8fd0531ae0be | 611 | data |= ( 0x02 ); |
epgmdm | 0:8fd0531ae0be | 612 | writeReg( 0x00, data ); |
epgmdm | 0:8fd0531ae0be | 613 | // check |
epgmdm | 0:8fd0531ae0be | 614 | readReg( 0x00, &data ); |
epgmdm | 0:8fd0531ae0be | 615 | bit = ( data >> 1 ) & 1; |
epgmdm | 2:ca0a3c0bba70 | 616 | |
epgmdm | 0:8fd0531ae0be | 617 | wait(0.005); // wait 5ms |
epgmdm | 2:ca0a3c0bba70 | 618 | if(debug) { |
epgmdm | 2:ca0a3c0bba70 | 619 | sprintf(logMsg, "Set PWR_UP to %x", bit); |
epgmdm | 2:ca0a3c0bba70 | 620 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 621 | } |
nixonkj | 6:77ead8abdd1c | 622 | if (bit == 1) { |
nixonkj | 6:77ead8abdd1c | 623 | return 0; |
nixonkj | 6:77ead8abdd1c | 624 | } else { |
nixonkj | 6:77ead8abdd1c | 625 | return 1; |
nixonkj | 6:77ead8abdd1c | 626 | } |
nixonkj | 6:77ead8abdd1c | 627 | } |
epgmdm | 2:ca0a3c0bba70 | 628 | |
epgmdm | 0:8fd0531ae0be | 629 | /** |
epgmdm | 0:8fd0531ae0be | 630 | * Sets PRIM_RX = 0; |
epgmdm | 0:8fd0531ae0be | 631 | */ |
nixonkj | 6:77ead8abdd1c | 632 | char NRF2401P::setRxMode() |
epgmdm | 0:8fd0531ae0be | 633 | { |
epgmdm | 0:8fd0531ae0be | 634 | char data; |
epgmdm | 0:8fd0531ae0be | 635 | char bit; |
epgmdm | 0:8fd0531ae0be | 636 | ce=1; |
epgmdm | 0:8fd0531ae0be | 637 | readReg( 0x00, &data ); |
epgmdm | 2:ca0a3c0bba70 | 638 | data |= ( 0x01 ); |
epgmdm | 2:ca0a3c0bba70 | 639 | |
epgmdm | 0:8fd0531ae0be | 640 | writeReg( 0x00, data ); |
epgmdm | 3:afe8d307b5c3 | 641 | if (pipe0Add[0]|pipe0Add[1]|pipe0Add[2]|pipe0Add[3]|pipe0Add[4] >0) { |
epgmdm | 3:afe8d307b5c3 | 642 | setRxAddress(pipe0Add,0); |
epgmdm | 2:ca0a3c0bba70 | 643 | } |
epgmdm | 0:8fd0531ae0be | 644 | // check |
epgmdm | 0:8fd0531ae0be | 645 | readReg( 0x00, &data ); |
epgmdm | 0:8fd0531ae0be | 646 | bit = ( data >> 0 ) & 1; |
epgmdm | 2:ca0a3c0bba70 | 647 | |
epgmdm | 2:ca0a3c0bba70 | 648 | wait (0.001); |
epgmdm | 0:8fd0531ae0be | 649 | flushRx(); |
epgmdm | 2:ca0a3c0bba70 | 650 | flushTx(); |
epgmdm | 2:ca0a3c0bba70 | 651 | if (debug) { |
epgmdm | 2:ca0a3c0bba70 | 652 | sprintf(logMsg, " set PRIM_RX to %x", bit); |
epgmdm | 2:ca0a3c0bba70 | 653 | log(logMsg); |
epgmdm | 2:ca0a3c0bba70 | 654 | } |
nixonkj | 6:77ead8abdd1c | 655 | if ( bit == 1 ) { |
nixonkj | 6:77ead8abdd1c | 656 | return 0; |
nixonkj | 6:77ead8abdd1c | 657 | } else { |
nixonkj | 6:77ead8abdd1c | 658 | return 1; |
nixonkj | 6:77ead8abdd1c | 659 | } |
epgmdm | 0:8fd0531ae0be | 660 | } |
nixonkj | 6:77ead8abdd1c | 661 | |
epgmdm | 0:8fd0531ae0be | 662 | /** |
epgmdm | 0:8fd0531ae0be | 663 | * Prints status string |
epgmdm | 0:8fd0531ae0be | 664 | */ |
epgmdm | 0:8fd0531ae0be | 665 | char * NRF2401P::statusString() |
epgmdm | 0:8fd0531ae0be | 666 | { |
epgmdm | 0:8fd0531ae0be | 667 | char *msg; |
epgmdm | 0:8fd0531ae0be | 668 | msg = statusS; |
epgmdm | 0:8fd0531ae0be | 669 | if (((status>>1) & 0x07)==0x07) { |
epgmdm | 0:8fd0531ae0be | 670 | sprintf(msg,"RX empty"); |
epgmdm | 0:8fd0531ae0be | 671 | } else { |
epgmdm | 0:8fd0531ae0be | 672 | sprintf(msg,"pipe %02x",(status>>1) & 0x07); |
epgmdm | 0:8fd0531ae0be | 673 | } |
epgmdm | 0:8fd0531ae0be | 674 | |
epgmdm | 0:8fd0531ae0be | 675 | if ((status>>6)&0x01) strcat(msg," RX_DR,"); |
epgmdm | 0:8fd0531ae0be | 676 | if ((status>>5)&0x01) strcat(msg," TX_DS,"); |
epgmdm | 0:8fd0531ae0be | 677 | if ((status>>4)&0x01) strcat(msg," MAX_RT,"); |
epgmdm | 0:8fd0531ae0be | 678 | if ((status>>0)&0x01) strcat(msg," TX_FLL,"); |
epgmdm | 0:8fd0531ae0be | 679 | |
epgmdm | 0:8fd0531ae0be | 680 | return msg; |
epgmdm | 0:8fd0531ae0be | 681 | } |