M H
prijimac-zaloha
Revision 1:9f3cc092b9aa, committed 2015-04-02
- Comitter:
- homzovam
- Date:
- Thu Apr 02 10:29:44 2015 +0000
- Parent:
- 0:0c03408de495
- Commit message:
- ddd
Changed in this revision
--- a/radio22.lib Thu Apr 02 10:27:28 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://developer.mbed.org/users/homzovam/code/radio22/#5909a5da99b0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/radio22/RF22.cpp Thu Apr 02 10:29:44 2015 +0000
@@ -0,0 +1,798 @@
+// RF22.cpp
+
+#include "mbed.h"
+#include "RF22.h"
+
+Serial pc1(USBTX, USBRX);
+
+// These are indexed by the values of ModemConfigChoic
+// Stored in flash (program) memory to save SRAM
+/*PROGMEM */ static const RF22::ModemConfig MODEM_CONFIG_TABLE[] = {
+ { 0x2b, 0x03, 0xf4, 0x20, 0x41, 0x89, 0x00, 0x36, 0x40, 0x0a, 0x1d, 0x80, 0x60, 0x10, 0x62, 0x2c, 0x00, 0x08 }, // Unmodulated carrier
+ { 0x2b, 0x03, 0xf4, 0x20, 0x41, 0x89, 0x00, 0x36, 0x40, 0x0a, 0x1d, 0x80, 0x60, 0x10, 0x62, 0x2c, 0x33, 0x08 }, // FSK, PN9 random modulation, 2, 5
+
+ // All the following enable FIFO with reg 71
+ // 1c, 1f, 20, 21, 22, 23, 24, 25, 2c, 2d, 2e, 58, 69, 6e, 6f, 70, 71, 72
+ // FSK, No Manchester, Max Rb err <1%, Xtal Tol 20ppm
+ { 0x2b, 0x03, 0xf4, 0x20, 0x41, 0x89, 0x00, 0x36, 0x40, 0x0a, 0x1d, 0x80, 0x60, 0x10, 0x62, 0x2c, 0x22, 0x08 }, // 2, 5
+ { 0x1b, 0x03, 0x41, 0x60, 0x27, 0x52, 0x00, 0x07, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x22, 0x3a }, // 2.4, 36
+ { 0x1d, 0x03, 0xa1, 0x20, 0x4e, 0xa5, 0x00, 0x13, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x27, 0x52, 0x2c, 0x22, 0x48 }, // 4.8, 45
+ { 0x1e, 0x03, 0xd0, 0x00, 0x9d, 0x49, 0x00, 0x45, 0x40, 0x0a, 0x20, 0x80, 0x60, 0x4e, 0xa5, 0x2c, 0x22, 0x48 }, // 9.6, 45
+ { 0x2b, 0x03, 0x34, 0x02, 0x75, 0x25, 0x07, 0xff, 0x40, 0x0a, 0x1b, 0x80, 0x60, 0x9d, 0x49, 0x2c, 0x22, 0x0f }, // 19.2, 9.6
+ { 0x02, 0x03, 0x68, 0x01, 0x3a, 0x93, 0x04, 0xd5, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x09, 0xd5, 0x0c, 0x22, 0x1f }, // 38.4, 19.6
+ { 0x06, 0x03, 0x45, 0x01, 0xd7, 0xdc, 0x07, 0x6e, 0x40, 0x0a, 0x2d, 0x80, 0x60, 0x0e, 0xbf, 0x0c, 0x22, 0x2e }, // 57.6. 28.8
+ { 0x8a, 0x03, 0x60, 0x01, 0x55, 0x55, 0x02, 0xad, 0x40, 0x0a, 0x50, 0x80, 0x60, 0x20, 0x00, 0x0c, 0x22, 0xc8 }, // 125, 125
+
+ // GFSK, No Manchester, Max Rb err <1%, Xtal Tol 20ppm
+ // These differ from FSK only in register 71, for the modulation type
+ { 0x2b, 0x03, 0xf4, 0x20, 0x41, 0x89, 0x00, 0x36, 0x40, 0x0a, 0x1d, 0x80, 0x60, 0x10, 0x62, 0x2c, 0x23, 0x08 }, // 2, 5
+ { 0x1b, 0x03, 0x41, 0x60, 0x27, 0x52, 0x00, 0x07, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x23, 0x3a }, // 2.4, 36
+ { 0x1d, 0x03, 0xa1, 0x20, 0x4e, 0xa5, 0x00, 0x13, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x27, 0x52, 0x2c, 0x23, 0x48 }, // 4.8, 45
+ { 0x1e, 0x03, 0xd0, 0x00, 0x9d, 0x49, 0x00, 0x45, 0x40, 0x0a, 0x20, 0x80, 0x60, 0x4e, 0xa5, 0x2c, 0x23, 0x48 }, // 9.6, 45
+ { 0x2b, 0x03, 0x34, 0x02, 0x75, 0x25, 0x07, 0xff, 0x40, 0x0a, 0x1b, 0x80, 0x60, 0x9d, 0x49, 0x2c, 0x23, 0x0f }, // 19.2, 9.6
+ { 0x02, 0x03, 0x68, 0x01, 0x3a, 0x93, 0x04, 0xd5, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x09, 0xd5, 0x0c, 0x23, 0x1f }, // 38.4, 19.6
+ { 0x06, 0x03, 0x45, 0x01, 0xd7, 0xdc, 0x07, 0x6e, 0x40, 0x0a, 0x2d, 0x80, 0x60, 0x0e, 0xbf, 0x0c, 0x23, 0x2e }, // 57.6. 28.8
+ { 0x8a, 0x03, 0x60, 0x01, 0x55, 0x55, 0x02, 0xad, 0x40, 0x0a, 0x50, 0x80, 0x60, 0x20, 0x00, 0x0c, 0x23, 0xc8 }, // 125, 125
+
+ // OOK, No Manchester, Max Rb err <1%, Xtal Tol 20ppm
+ { 0x51, 0x03, 0x68, 0x00, 0x3a, 0x93, 0x01, 0x3d, 0x2c, 0x11, 0x28, 0x80, 0x60, 0x09, 0xd5, 0x2c, 0x21, 0x08 }, // 1.2, 75
+ { 0xc8, 0x03, 0x39, 0x20, 0x68, 0xdc, 0x00, 0x6b, 0x2a, 0x08, 0x2a, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x21, 0x08 }, // 2.4, 335
+ { 0xc8, 0x03, 0x9c, 0x00, 0xd1, 0xb7, 0x00, 0xd4, 0x29, 0x04, 0x29, 0x80, 0x60, 0x27, 0x52, 0x2c, 0x21, 0x08 }, // 4.8, 335
+ { 0xb8, 0x03, 0x9c, 0x00, 0xd1, 0xb7, 0x00, 0xd4, 0x28, 0x82, 0x29, 0x80, 0x60, 0x4e, 0xa5, 0x2c, 0x21, 0x08 }, // 9.6, 335
+ { 0xa8, 0x03, 0x9c, 0x00, 0xd1, 0xb7, 0x00, 0xd4, 0x28, 0x41, 0x29, 0x80, 0x60, 0x9d, 0x49, 0x2c, 0x21, 0x08 }, // 19.2, 335
+ { 0x98, 0x03, 0x9c, 0x00, 0xd1, 0xb7, 0x00, 0xd4, 0x28, 0x20, 0x29, 0x80, 0x60, 0x09, 0xd5, 0x0c, 0x21, 0x08 }, // 38.4, 335
+ { 0x98, 0x03, 0x96, 0x00, 0xda, 0x74, 0x00, 0xdc, 0x28, 0x1f, 0x29, 0x80, 0x60, 0x0a, 0x3d, 0x0c, 0x21, 0x08 }, // 40, 335
+
+};
+
+RF22::RF22(PinName slaveSelectPin, PinName mosi, PinName miso, PinName sclk, PinName interrupt)
+ : _slaveSelectPin(slaveSelectPin), _spi(mosi, miso, sclk), _interrupt(interrupt) /*, led1(LED1), led2(LED2), led3(LED3), led4(LED4) */
+{
+
+
+ _idleMode = RF22_XTON; // Default idle state is READY mode
+ _mode = RF22_MODE_IDLE; // We start up in idle mode
+ _rxGood = 0;
+ _rxBad = 0;
+ _txGood = 0;
+
+
+}
+
+//moje dopsane metody
+
+ void RF22::obsluhapreruseni()
+ {
+ handleInterrupt();
+ }
+
+ void RF22::vypisfifo()
+ {
+ _slaveSelectPin = 0;
+ _spi.write(RF22_REG_7F_FIFO_ACCESS);
+ pc1.printf("\n\r Obsah FIFA je:");
+ for(int a = 0; a<10; a++)
+ {
+ uint8_t x = _spi.write(RF22_REG_7F_FIFO_ACCESS);
+ pc1.printf("\t %i", x);
+ }
+ _slaveSelectPin = 1;
+ }
+
+boolean RF22::init()
+{
+ wait_ms(16);
+
+ _slaveSelectPin = 1; // cip select
+
+ wait_ms(100);
+
+ _spi.format(8,0); //konfigurace SPI
+ _spi.frequency(10000000);
+
+ // Software reset the device
+ reset();
+
+ // Get the device type and check it
+ // This also tests whether we are really connected to a device
+ _deviceType = spiRead(RF22_REG_00_DEVICE_TYPE);
+
+ if ( _deviceType != RF22_DEVICE_TYPE_RX_TRX
+ && _deviceType != RF22_DEVICE_TYPE_TX)
+ return false;
+
+ _interrupt.fall(this, &RF22::isr0);
+
+ clearTxBuf();
+ clearRxBuf();
+
+ // Most of these are the POR default
+ spiWrite(RF22_REG_7D_TX_FIFO_CONTROL2, RF22_TXFFAEM_THRESHOLD);
+ spiWrite(RF22_REG_7E_RX_FIFO_CONTROL, RF22_RXFFAFULL_THRESHOLD);
+ spiWrite(RF22_REG_30_DATA_ACCESS_CONTROL, RF22_ENPACRX | RF22_ENPACTX | RF22_ENCRC | RF22_CRC_CRC_16_IBM);
+ // Configure the message headers
+ // Here we set up the standard packet format for use by the RF22 library
+ // 8 nibbles preamble
+ // 2 SYNC words 2d, d4
+ // Header length 4 (to, from, id, flags)
+ // 1 octet of data length (0 to 255)
+ // 0 to 255 octets data
+ // 2 CRC octets as CRC16(IBM), computed on the header, length and data
+ // On reception the to address is check for validity against RF22_REG_3F_CHECK_HEADER3
+ // or the broadcast address of 0xff
+ // If no changes are made after this, the transmitted
+ // to address will be 0xff, the from address will be 0xff
+ // and all such messages will be accepted. This permits the out-of the box
+ // RF22 config to act as an unaddresed, unreliable datagram service
+ spiWrite(RF22_REG_32_HEADER_CONTROL1, RF22_BCEN_HEADER3 | RF22_HDCH_HEADER3);
+ spiWrite(RF22_REG_33_HEADER_CONTROL2, RF22_HDLEN_4 | RF22_SYNCLEN_2);
+ setPreambleLength(8); //delka preambule
+ uint8_t syncwords[] = { 0x2d, 0xd4 };
+ setSyncWords(syncwords, sizeof(syncwords));
+ setPromiscuous(false);
+ // Check the TO header against RF22_DEFAULT_NODE_ADDRESS
+ spiWrite(RF22_REG_3F_CHECK_HEADER3, RF22_DEFAULT_NODE_ADDRESS);
+ // Set the default transmit header values
+ setHeaderTo(RF22_DEFAULT_NODE_ADDRESS);
+ setHeaderFrom(RF22_DEFAULT_NODE_ADDRESS);
+ setHeaderId(0);
+ setHeaderFlags(0);
+
+ // Ensure the antenna can be switched automatically according to transmit and receive
+ // This assumes GPIO0(out) is connected to TX_ANT(in) to enable tx antenna during transmit
+ // This assumes GPIO1(out) is connected to RX_ANT(in) to enable rx antenna during receive
+ spiWrite (RF22_REG_0B_GPIO_CONFIGURATION0, 0x12) ; // TX state
+ spiWrite (RF22_REG_0C_GPIO_CONFIGURATION1, 0x15) ; // RX state
+
+ // Enable interrupts
+
+ spiWrite(RF22_REG_05_INTERRUPT_ENABLE1, RF22_ENTXFFAEM |RF22_ENRXFFAFULL | RF22_ENPKSENT |RF22_ENPKVALID| RF22_ENCRCERROR);
+ spiWrite(RF22_REG_06_INTERRUPT_ENABLE2, RF22_ENPREAVAL);
+
+ // Set some defaults. An innocuous ISM frequency, and reasonable pull-in
+ setFrequency(434.0, 0.05);
+// setFrequency(900.0);
+ // Some slow, reliable default speed and modulation
+ setModemConfig(FSK_Rb2_4Fd36);
+// setModemConfig(FSK_Rb125Fd125);
+ // Minimum power
+ setTxPower(RF22_TXPOW_8DBM);
+// setTxPower(RF22_TXPOW_17DBM);
+
+
+
+ return true;
+}
+
+// C++ level interrupt handler for this instance
+void RF22::handleInterrupt()
+{
+ uint8_t _lastInterruptFlags[2];
+
+ //led1 = 1;
+
+ // Read the interrupt flags which clears the interrupt
+ spiBurstRead(RF22_REG_03_INTERRUPT_STATUS1, _lastInterruptFlags, 2);
+
+#if 0
+ // Caution: Serial printing in this interrupt routine can cause mysterious crashes
+ Serial.print("interrupt ");
+ Serial.print(_lastInterruptFlags[0], HEX);
+ Serial.print(" ");
+ Serial.println(_lastInterruptFlags[1], HEX);
+ if (_lastInterruptFlags[0] == 0 && _lastInterruptFlags[1] == 0)
+ Serial.println("FUNNY: no interrupt!");
+#endif
+
+#if 0
+ // TESTING: fake an RF22_IFFERROR
+ static int counter = 0;
+ if (_lastInterruptFlags[0] & RF22_IPKSENT && counter++ == 10) {
+ _lastInterruptFlags[0] = RF22_IFFERROR;
+ counter = 0;
+ }
+#endif
+
+
+ if (_lastInterruptFlags[0] & RF22_IFFERROR) {
+// Serial.println("IFFERROR");
+ //led4 = !led4;
+ resetFifos(); // Clears the interrupt
+ if (_mode == RF22_MODE_TX)
+ restartTransmit();
+ else if (_mode == RF22_MODE_RX){
+ clearRxBuf();
+ //stop and start Rx
+ setModeIdle();
+ setModeRx();
+ }
+ // stop handling the remaining interruppts as something went wrong here
+ return;
+ }
+
+ // Caution, any delay here may cause a FF underflow or overflow
+ if (_lastInterruptFlags[0] & RF22_ITXFFAEM) {
+ // See if more data has to be loaded into the Tx FIFO
+ //led2 = !led2;
+ sendNextFragment();
+// Serial.println("ITXFFAEM");
+ }
+
+ if (_lastInterruptFlags[0] & RF22_IRXFFAFULL) {
+ // Caution, any delay here may cause a FF overflow
+ // Read some data from the Rx FIFO
+ //led4 = !led4;
+ readNextFragment();
+// Serial.println("IRXFFAFULL");
+ }
+ if (_lastInterruptFlags[0] & RF22_IEXT) {
+ // This is not enabled by the base code, but users may want to enable it
+ //led2 = !led2;
+ handleExternalInterrupt();
+// Serial.println("IEXT");
+ }
+ if (_lastInterruptFlags[1] & RF22_IWUT) {
+ // This is not enabled by the base code, but users may want to enable it
+ //led2 = !led2;
+ handleWakeupTimerInterrupt();
+// Serial.println("IWUT");
+ }
+ if (_lastInterruptFlags[0] & RF22_IPKSENT) {
+// Serial.println("IPKSENT");
+ _txGood++;
+ //led4 = !led4;
+ // Transmission does not automatically clear the tx buffer.
+ // Could retransmit if we wanted
+ // RF22 transitions automatically to Idle
+ _mode = RF22_MODE_IDLE;
+ }
+
+ if (_lastInterruptFlags[0] & RF22_IPKVALID) {
+ uint8_t len = spiRead(RF22_REG_4B_RECEIVED_PACKET_LENGTH);
+// Serial.println("IPKVALID");
+// Serial.println(len);
+// Serial.println(_bufLen);
+
+ // May have already read one or more fragments
+ // Get any remaining unread octets, based on the expected length
+ // First make sure we dont overflow the buffer in the case of a stupid length
+ // or partial bad receives
+
+ if ( len > RF22_MAX_MESSAGE_LEN || len < _bufLen) //pokud je delka zpravy delsi nez FIFO
+ {
+ _rxBad++;
+ _mode = RF22_MODE_IDLE;
+ clearRxBuf();
+ return; // Hmmm receiver buffer overflow.
+ }
+
+ spiBurstRead(RF22_REG_7F_FIFO_ACCESS, _buf + _bufLen, len - _bufLen);
+ __disable_irq(); // Disable Interrupts
+ _rxGood++;
+ _bufLen = len;
+ _mode = RF22_MODE_IDLE;
+ _rxBufValid = true;
+ // reset the fifo for next packet??
+ //resetRxFifo();
+ __enable_irq(); // Enable Interrupts
+
+ //led3 = !led3;
+
+ }
+
+ if (_lastInterruptFlags[0] & RF22_ICRCERROR) {
+// Serial.println("ICRCERR");
+ _rxBad++;
+ //led2 = !led2;
+ clearRxBuf();
+ resetRxFifo();
+ _mode = RF22_MODE_IDLE;
+ setModeRx(); // Keep trying
+ }
+
+ if (_lastInterruptFlags[1] & RF22_IPREAVAL) {
+// Serial.println("IPREAVAL");
+
+ _lastRssi = spiRead(RF22_REG_26_RSSI);
+
+
+ // why clear the rx-buf here? charly
+ clearRxBuf();
+
+
+ }
+ //led1 = 0;
+}
+
+// These are low level functions that call the interrupt handler for the correct
+// instance of RF22.
+// 2 interrupts allows us to have 2 different devices
+
+void RF22::isr0()
+{
+ //handleInterrupt();
+ obsluhapreruseni();
+
+}
+
+
+void RF22::reset()
+{
+ spiWrite(RF22_REG_07_OPERATING_MODE1, RF22_SWRES); //soft reset
+ wait_ms(1);
+}
+
+uint8_t RF22::spiRead(uint8_t reg)
+{
+ __disable_irq(); // Disable Interrupts
+
+ _slaveSelectPin=0;
+
+ _spi.write(reg & ~RF22_SPI_WRITE_MASK); // Send the address with the write mask off
+ uint8_t val = _spi.write(0); // The written value is ignored, reg value is read ??????
+
+ _slaveSelectPin = 1;
+ __enable_irq(); // Enable Interrupts
+ return val;
+}
+
+void RF22::spiWrite(uint8_t reg, uint8_t val) //zapis hodnot z define
+{
+ __disable_irq(); // Disable Interrupts
+
+ _slaveSelectPin = 0;
+ _spi.write(reg | RF22_SPI_WRITE_MASK); // Send the address with the write mask on
+ _spi.write(val); // New value follows
+
+ _slaveSelectPin = 1;
+ __enable_irq(); // Enable Interrupts
+}
+
+void RF22::spiBurstRead(uint8_t reg, uint8_t* dest, uint8_t len) //tady se vycitaji data
+{
+ _slaveSelectPin = 0;
+ _spi.write(reg & ~RF22_SPI_WRITE_MASK); // Send the start address with the write mask off
+ if(reg == RF22_REG_7F_FIFO_ACCESS) pc1.printf("\n\r Data primo z bufferu:");
+ while (len--)
+ {
+ *dest++ = _spi.write(0);
+ if(reg == RF22_REG_7F_FIFO_ACCESS) pc1.printf(" %i", *dest);
+ }
+ _slaveSelectPin = 1;
+}
+
+void RF22::spiBurstWrite(uint8_t reg, const uint8_t* src, uint8_t len)
+{
+ _slaveSelectPin = 0;
+ _spi.write(reg | RF22_SPI_WRITE_MASK); // Send the start address with the write mask on
+ while (len--)
+ _spi.write(*src++);
+ _slaveSelectPin = 1;
+}
+
+uint8_t RF22::statusRead()
+{
+ return spiRead(RF22_REG_02_DEVICE_STATUS);
+}
+
+uint8_t RF22::adcRead(uint8_t adcsel,
+ uint8_t adcref ,
+ uint8_t adcgain,
+ uint8_t adcoffs)
+{
+ uint8_t configuration = adcsel | adcref | (adcgain & RF22_ADCGAIN);
+ spiWrite(RF22_REG_0F_ADC_CONFIGURATION, configuration | RF22_ADCSTART);
+ spiWrite(RF22_REG_10_ADC_SENSOR_AMP_OFFSET, adcoffs);
+
+ // Conversion time is nominally 305usec
+ // Wait for the DONE bit
+ while (!(spiRead(RF22_REG_0F_ADC_CONFIGURATION) & RF22_ADCDONE))
+ ;
+ // Return the value
+ return spiRead(RF22_REG_11_ADC_VALUE);
+}
+
+
+uint16_t RF22::wutRead()
+{
+ uint8_t buf[2];
+ spiBurstRead(RF22_REG_17_WAKEUP_TIMER_VALUE1, buf, 2);
+ return ((uint16_t)buf[0] << 8) | buf[1]; // Dont rely on byte order
+}
+
+// RFM-22 doc appears to be wrong: WUT for wtm = 10000, r, = 0, d = 0 is about 1 sec
+void RF22::setWutPeriod(uint16_t wtm, uint8_t wtr, uint8_t wtd)
+{
+ uint8_t period[3];
+
+ period[0] = ((wtr & 0xf) << 2) | (wtd & 0x3);
+ period[1] = wtm >> 8;
+ period[2] = wtm & 0xff;
+ spiBurstWrite(RF22_REG_14_WAKEUP_TIMER_PERIOD1, period, sizeof(period));
+}
+
+// Returns true if centre + (fhch * fhs) is within limits
+// Caution, different versions of the RF22 support different max freq
+// so YMMV
+boolean RF22::setFrequency(float centre, float afcPullInRange)
+{
+ uint8_t fbsel = RF22_SBSEL;
+ uint8_t afclimiter;
+ if (centre < 240.0 || centre > 960.0) // 930.0 for early silicon
+ return false;
+ if (centre >= 480.0) {
+ if (afcPullInRange < 0.0 || afcPullInRange > 0.318750)
+ return false;
+ centre /= 2;
+ fbsel |= RF22_HBSEL;
+ afclimiter = afcPullInRange * 1000000.0 / 1250.0;
+ } else {
+ if (afcPullInRange < 0.0 || afcPullInRange > 0.159375)
+ return false;
+ afclimiter = afcPullInRange * 1000000.0 / 625.0;
+ }
+ centre /= 10.0;
+ float integerPart = floor(centre);
+ float fractionalPart = centre - integerPart;
+
+ uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
+ fbsel |= fb;
+ uint16_t fc = fractionalPart * 64000;
+ spiWrite(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
+ spiWrite(RF22_REG_74_FREQUENCY_OFFSET2, 0);
+ spiWrite(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
+ spiWrite(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
+ spiWrite(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
+ spiWrite(RF22_REG_2A_AFC_LIMITER, afclimiter);
+ return !(statusRead() & RF22_FREQERR);
+}
+
+// Step size in 10kHz increments
+// Returns true if centre + (fhch * fhs) is within limits
+boolean RF22::setFHStepSize(uint8_t fhs)
+{
+ spiWrite(RF22_REG_7A_FREQUENCY_HOPPING_STEP_SIZE, fhs);
+ return !(statusRead() & RF22_FREQERR);
+}
+
+// Adds fhch * fhs to centre frequency
+// Returns true if centre + (fhch * fhs) is within limits
+boolean RF22::setFHChannel(uint8_t fhch)
+{
+ spiWrite(RF22_REG_79_FREQUENCY_HOPPING_CHANNEL_SELECT, fhch);
+ return !(statusRead() & RF22_FREQERR);
+}
+
+uint8_t RF22::rssiRead()
+{
+ return spiRead(RF22_REG_26_RSSI);
+}
+
+uint8_t RF22::ezmacStatusRead()
+{
+ return spiRead(RF22_REG_31_EZMAC_STATUS);
+}
+
+void RF22::setMode(uint8_t mode)
+{
+ spiWrite(RF22_REG_07_OPERATING_MODE1, mode);
+}
+
+void RF22::setModeIdle()
+{
+ if (_mode != RF22_MODE_IDLE) {
+ setMode(_idleMode);
+ _mode = RF22_MODE_IDLE;
+
+ }
+}
+
+void RF22::setModeRx()
+{
+ if (_mode != RF22_MODE_RX) {
+ setMode(_idleMode | RF22_RXON);
+ _mode = RF22_MODE_RX;
+ }
+}
+
+void RF22::setModeTx()
+{
+ if (_mode != RF22_MODE_TX) {
+ setMode(_idleMode | RF22_TXON);
+ _mode = RF22_MODE_TX;
+ // Hmmm, if you dont clear the RX FIFO here, then it appears that going
+ // to transmit mode in the middle of a receive can corrupt the
+ // RX FIFO
+ resetRxFifo();
+
+ }
+}
+
+uint8_t RF22::mode()
+{
+ return _mode;
+}
+
+void RF22::setTxPower(uint8_t power)
+{
+ spiWrite(RF22_REG_6D_TX_POWER, power);
+}
+
+// Sets registers from a canned modem configuration structure
+void RF22::setModemRegisters(const ModemConfig* config)
+{
+ spiWrite(RF22_REG_1C_IF_FILTER_BANDWIDTH, config->reg_1c);
+ spiWrite(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE, config->reg_1f);
+ spiBurstWrite(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE, &config->reg_20, 6);
+ spiBurstWrite(RF22_REG_2C_OOK_COUNTER_VALUE_1, &config->reg_2c, 3);
+ spiWrite(RF22_REG_58_CHARGE_PUMP_CURRENT_TRIMMING, config->reg_58);
+ spiWrite(RF22_REG_69_AGC_OVERRIDE1, config->reg_69);
+ spiBurstWrite(RF22_REG_6E_TX_DATA_RATE1, &config->reg_6e, 5);
+}
+
+// Set one of the canned FSK Modem configs
+// Returns true if its a valid choice
+boolean RF22::setModemConfig(ModemConfigChoice index)
+{
+ if (index > (sizeof(MODEM_CONFIG_TABLE) / sizeof(ModemConfig)))
+ return false;
+
+ RF22::ModemConfig cfg;
+ memcpy(&cfg, &MODEM_CONFIG_TABLE[index], sizeof(RF22::ModemConfig));
+ setModemRegisters(&cfg);
+
+ return true;
+}
+
+// REVISIT: top bit is in Header Control 2 0x33
+void RF22::setPreambleLength(uint8_t nibbles)
+{
+ spiWrite(RF22_REG_34_PREAMBLE_LENGTH, nibbles);
+}
+
+// Caution doesnt set sync word len in Header Control 2 0x33
+void RF22::setSyncWords(const uint8_t* syncWords, uint8_t len)
+{
+ spiBurstWrite(RF22_REG_36_SYNC_WORD3, syncWords, len);
+}
+
+void RF22::clearRxBuf()
+{
+ __disable_irq(); // Disable Interrupts
+ _bufLen = 0;
+ _rxBufValid = false;
+ __enable_irq(); // Enable Interrupts
+}
+
+boolean RF22::available()
+{
+ if (!_rxBufValid)
+ setModeRx(); // Make sure we are receiving
+ return _rxBufValid;
+}
+
+// Blocks until a valid message is received
+void RF22::waitAvailable()
+{
+ while (!available())
+ ;
+}
+
+// Blocks until a valid message is received or timeout expires
+// Return true if there is a message available
+bool RF22::waitAvailableTimeout(uint16_t timeout)
+{
+ Timer t;
+ t.start();
+ unsigned long endtime = t.read_ms() + timeout;
+ while (t.read_ms() < endtime)
+ if (available())
+ return true;
+ return false;
+}
+
+void RF22::waitPacketSent()
+{
+ while (_mode == RF22_MODE_TX)
+ ; // Wait for any previous transmit to finish
+}
+
+// Diagnostic help
+void RF22::printBuffer(const uint8_t *buf, uint8_t len)
+{
+
+ uint8_t i;
+
+ pc1.printf("\n\rObsah Bufferu ");
+ for (i = 0; i < len; i++) {
+ if (i % 16 == 15)
+ pc1.printf("%d", buf[i]);
+ else {
+ pc1.printf("%d", buf[i]);
+ pc1.printf(" ");
+ }
+ }
+ pc1.printf(" ");
+
+}
+
+boolean RF22::recv(uint8_t* buf, uint8_t* len)
+{
+ if (!available())
+ return false;
+ __disable_irq(); // Disable Interrupts
+ if (*len > _bufLen)
+ *len = _bufLen;
+ memcpy(buf, _buf, *len);
+ printBuffer(_buf, *len);
+ clearRxBuf();
+ __enable_irq(); // Enable Interrupts
+ printBuffer( buf, *len);
+
+ return true;
+}
+
+void RF22::clearTxBuf()
+{
+ __disable_irq(); // Disable Interrupts
+ _bufLen = 0;
+ _txBufSentIndex = 0;
+ _txPacketSent = false;
+ __enable_irq(); // Enable Interrupts
+}
+
+void RF22::startTransmit()
+{
+ sendNextFragment(); // Actually the first fragment
+ spiWrite(RF22_REG_3E_PACKET_LENGTH, _bufLen); // Total length that will be sent
+ setModeTx(); // Start the transmitter, turns off the receiver
+}
+
+// Restart the transmission of a packet that had a problem
+void RF22::restartTransmit()
+{
+ _mode = RF22_MODE_IDLE;
+ _txBufSentIndex = 0;
+// Serial.println("Restart");
+ startTransmit();
+}
+
+boolean RF22::send(const uint8_t* data, uint8_t len) //pocka, nez se odesle paket a potom odesle data
+{
+ waitPacketSent();
+ {
+ if (!fillTxBuf(data, len))
+ return false;
+ startTransmit();
+ }
+// printBuffer("send:", data, len);
+ return true;
+}
+
+boolean RF22::fillTxBuf(const uint8_t* data, uint8_t len)
+{
+ clearTxBuf();
+ if (!len)
+ return false;
+ return appendTxBuf(data, len);
+}
+
+boolean RF22::appendTxBuf(const uint8_t* data, uint8_t len)
+{
+ if (((uint16_t)_bufLen + len) > RF22_MAX_MESSAGE_LEN)
+ return false;
+ __disable_irq(); // Disable Interrupts
+ memcpy(_buf + _bufLen, data, len);
+ _bufLen += len;
+ __enable_irq(); // Enable Interrupts
+
+// printBuffer("txbuf:", _buf, _bufLen);
+ return true;
+}
+
+// Assumption: there is currently <= RF22_TXFFAEM_THRESHOLD bytes in the Tx FIFO
+void RF22::sendNextFragment()
+{
+ if (_txBufSentIndex < _bufLen) {
+ // Some left to send?
+ uint8_t len = _bufLen - _txBufSentIndex;
+ // But dont send too much
+ if (len > (RF22_FIFO_SIZE - RF22_TXFFAEM_THRESHOLD - 1))
+ len = (RF22_FIFO_SIZE - RF22_TXFFAEM_THRESHOLD - 1);
+ spiBurstWrite(RF22_REG_7F_FIFO_ACCESS, _buf + _txBufSentIndex, len);
+ _txBufSentIndex += len;
+ }
+}
+
+// Assumption: there are at least RF22_RXFFAFULL_THRESHOLD in the RX FIFO
+// That means it should only be called after a RXFFAFULL interrupt
+void RF22::readNextFragment()
+{
+ if (((uint16_t)_bufLen + RF22_RXFFAFULL_THRESHOLD) > RF22_MAX_MESSAGE_LEN)
+ return; // Hmmm receiver overflow. Should never occur
+
+ // Read the RF22_RXFFAFULL_THRESHOLD octets that should be there
+ spiBurstRead(RF22_REG_7F_FIFO_ACCESS, _buf + _bufLen, RF22_RXFFAFULL_THRESHOLD);
+ _bufLen += RF22_RXFFAFULL_THRESHOLD;
+}
+
+// Clear the FIFOs
+void RF22::resetFifos()
+{
+ spiWrite(RF22_REG_08_OPERATING_MODE2, RF22_FFCLRRX | RF22_FFCLRTX);
+ spiWrite(RF22_REG_08_OPERATING_MODE2, 0);
+}
+
+// Clear the Rx FIFO
+void RF22::resetRxFifo()
+{
+ spiWrite(RF22_REG_08_OPERATING_MODE2, RF22_FFCLRRX);
+ spiWrite(RF22_REG_08_OPERATING_MODE2, 0);
+}
+
+// CLear the TX FIFO
+void RF22::resetTxFifo()
+{
+ spiWrite(RF22_REG_08_OPERATING_MODE2, RF22_FFCLRTX);
+ spiWrite(RF22_REG_08_OPERATING_MODE2, 0);
+}
+
+// Default implmentation does nothing. Override if you wish
+void RF22::handleExternalInterrupt()
+{
+}
+
+// Default implmentation does nothing. Override if you wish
+void RF22::handleWakeupTimerInterrupt()
+{
+}
+
+void RF22::setHeaderTo(uint8_t to)
+{
+ spiWrite(RF22_REG_3A_TRANSMIT_HEADER3, to);
+}
+
+void RF22::setHeaderFrom(uint8_t from)
+{
+ spiWrite(RF22_REG_3B_TRANSMIT_HEADER2, from);
+}
+
+void RF22::setHeaderId(uint8_t id)
+{
+ spiWrite(RF22_REG_3C_TRANSMIT_HEADER1, id);
+}
+
+void RF22::setHeaderFlags(uint8_t flags)
+{
+ spiWrite(RF22_REG_3D_TRANSMIT_HEADER0, flags);
+}
+
+uint8_t RF22::headerTo()
+{
+ return spiRead(RF22_REG_47_RECEIVED_HEADER3);
+}
+
+uint8_t RF22::headerFrom()
+{
+ return spiRead(RF22_REG_48_RECEIVED_HEADER2);
+}
+
+uint8_t RF22::headerId()
+{
+ return spiRead(RF22_REG_49_RECEIVED_HEADER1);
+}
+
+uint8_t RF22::headerFlags()
+{
+ return spiRead(RF22_REG_4A_RECEIVED_HEADER0);
+}
+
+uint8_t RF22::lastRssi()
+{
+ return _lastRssi;
+}
+
+void RF22::setPromiscuous(boolean promiscuous)
+{
+ spiWrite(RF22_REG_43_HEADER_ENABLE3, promiscuous ? 0x00 : 0xff);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/radio22/RF22.h Thu Apr 02 10:29:44 2015 +0000
@@ -0,0 +1,1143 @@
+// RF22.h
+// Author: Mike McCauley (mikem@open.com.au)
+// Copyright (C) 2011 Mike McCauley
+// $Id: RF22.h,v 1.23 2013/02/06 21:33:56 mikem Exp mikem $
+//
+// ported to mbed by Karl Zweimueller
+/// \mainpage RF22 library for Arduino
+///
+/// This is the Arduino RF22 library.
+/// It provides an object-oriented interface for sending and receiving data messages with Hope-RF
+/// RF22B based radio modules, and compatible chips and modules,
+/// including the RFM22B transceiver module such as
+/// this bare module: http://www.sparkfun.com/products/10153
+/// and this shield: https://www.sparkfun.com/products/11018
+///
+/// RF22 also supports some of the features of ZigBee and XBee,
+/// (such as mesh routing and automatic route discovery),
+/// but with a much less complicated system and less expensive radios.
+///
+/// The Hope-RF (http://www.hoperf.com) RFM22B (http://www.hoperf.com/rf_fsk/fsk/RFM22B.htm)
+/// is a low-cost ISM transceiver module. It supports FSK, GFSK, OOK over a wide
+/// range of frequencies and programmable data rates.
+///
+/// This library provides functions for sending and receiving messages of up to 255 octets on any
+/// frequency supported by the RF22B, in a range of predefined data rates and frequency deviations.
+/// Frequency can be set with 312Hz precision to any frequency from 240.0MHz to 960.0MHz.
+///
+/// Up to 2 RF22B modules can be connected to an Arduino, permitting the construction of translators
+/// and frequency changers, etc.
+///
+/// This library provides classes for
+/// - RF22: unaddressed, unreliable messages
+/// - RF22Datagram: addressed, unreliable messages
+/// - RF22ReliableDatagram: addressed, reliable, retransmitted, acknowledged messages.
+/// - RF22Router: multi hop delivery from source node to destination node via 0 or more intermediate nodes
+/// - RF22Mesh: multi hop delivery with automatic route discovery and rediscovery.
+///
+/// The following modulation types are suppported with a range of modem configurations for
+/// common data rates and frequency deviations:
+/// - GFSK Gaussian Frequency Shift Keying
+/// - FSK Frequency Shift Keying
+/// - OOK On-Off Keying
+///
+/// Support for other RF22B features such as on-chip temperature measurement, analog-digital
+/// converter, transmitter power control etc is also provided.
+///
+/// The latest version of this documentation can be downloaded from
+/// http://www.open.com.au/mikem/arduino/RF22
+///
+/// \par Packet Format
+///
+/// All messages sent and received by this RF22 library must conform to this packet format:
+///
+/// - 8 nibbles (4 octets) PREAMBLE
+/// - 2 octets SYNC 0x2d, 0xd4
+/// - 4 octets HEADER: (TO, FROM, ID, FLAGS)
+/// - 1 octet LENGTH (0 to 255), number of octets in DATA
+/// - 0 to 255 octets DATA
+/// - 2 octets CRC computed with CRC16(IBM), computed on HEADER, LENGTH and DATA
+///
+/// \par Connecting RFM-22 to Arduino
+///
+/// If you have the Sparkfun RFM22 Shield (https://www.sparkfun.com/products/11018)
+/// the connections described below are done for you on the shield, no changes required,
+/// just add headers and plug it in to an Arduino (but not and Arduino Mega, see below)
+///
+/// The physical connection between the RF22B and the Arduino require 3.3V, the 3 x SPI pins (SCK, SDI, SDO),
+/// a Slave Select pin and an interrupt pin.
+/// Note also that on the RFF22B, it is required to control the TX_ANT and X_ANT pins of the RFM22 in order to enable the
+/// antenna connection. The RF22 library is configured so that GPIO0 and GPIO1 outputs can control TX_ANT and RX_ANT input pins
+/// automatically. You must connect GPIO0 to TX_ANT and GPIO1 to RX_ANT for this automatic antenna switching to occur.
+
+/// \par Interrupts
+///
+/// The RF22 library uses interrupts to react to events in the RF22 module,
+/// such as the reception of a new packet, or the completion of transmission of a packet.
+/// The RF22 library interrupt service routine reads status from and writes data
+/// to the the RF22 module via the SPI interface. It is very important therefore,
+/// that if you are using the RF22 library with another SPI based deviced, that you
+/// disable interrupts while you transfer data to and from that other device.
+/// Use cli() to disable interrupts and sei() to reenable them.
+///
+/// \par Memory
+///
+/// The RF22 library requires non-trivial amounts of memory. The sample programs above all compile to
+/// about 9 to 14kbytes each, which will fit in the flash proram memory of most Arduinos. However,
+/// the RAM requirements are more critical. Most sample programs above will run on Duemilanova,
+/// but not on Diecimila. Even on Duemilanova, the RAM requirements are very close to the
+/// available memory of 2kbytes. Therefore, you should be vary sparing with RAM use in programs that use
+/// the RF22 library on Duemilanova.
+///
+/// The sample RF22Router and RF22Mesh programs compile to about 14kbytes,
+/// and require more RAM than the others.
+/// They will not run on Duemilanova or Diecimila, but will run on Arduino Mega.
+///
+/// It is often hard to accurately identify when you are hitting RAM limits on Arduino.
+/// The symptoms can include:
+/// - Mysterious crashes and restarts
+/// - Changes in behaviour when seemingly unrelated changes are made (such as adding print() statements)
+/// - Hanging
+/// - Output from Serial.print() not appearing
+///
+/// With an Arduino Mega, with 8 kbytes of SRAM, there is much more RAM headroom for
+/// your own elaborate programs.
+/// This library is reported to work with Arduino Pro Mini, but that has not been tested by me.
+///
+/// The Arduino UNO is now known to work with RF22.
+///
+/// \par Automatic Frequency Control (AFC)
+///
+/// The RF22M modules use an inexpensive crystal to control the frequency synthesizer, and therfore you can expect
+/// the transmitter and receiver frequencies to be subject to the usual inaccuracies of such crystals. The RF22
+/// contains an AFC circuit to compensate for differences in transmitter and receiver frequencies.
+/// It does this by altering the receiver frequency during reception by up to the pull-in frequency range.
+/// This RF22 library enables the AFC and by default sets the pull-in frequency range to
+/// 0.05MHz, which should be sufficient to handle most situations. However, if you observe unexplained packet losses
+/// or failure to operate correctly all the time it may be because your modules have a wider frequency difference, and
+/// you may need to set the afcPullInRange to a differentvalue, using setFrequency();
+///
+/// \par Performance
+///
+/// Some simple speed performance tests have been conducted.
+/// In general packet transmission rate will be limited by the modulation scheme.
+/// Also, if your code does any slow operations like Serial printing it will also limit performance.
+/// We disabled any printing in the tests below.
+/// We tested with RF22::GFSK_Rb125Fd125, which is probably the fastest scheme available.
+/// We tested with a 13 octet message length, over a very short distance of 10cm.
+///
+/// Transmission (no reply) tests with modulation RF22::GFSK_Rb125Fd125 and a
+/// 13 octet message show about 330 messages per second transmitted.
+///
+/// Transmit-and-wait-for-a-reply tests with modulation RF22::GFSK_Rb125Fd125 and a
+/// 13 octet message (send and receive) show about 160 round trips per second.
+///
+/// \par Installation
+///
+/// Install in the usual way: unzip the distribution zip file to the libraries
+/// sub-folder of your sketchbook.
+///
+/// This software is Copyright (C) 2011 Mike McCauley. Use is subject to license
+/// conditions. The main licensing options available are GPL V2 or Commercial:
+///
+/// \par Open Source Licensing GPL V2
+///
+/// This is the appropriate option if you want to share the source code of your
+/// application with everyone you distribute it to, and you also want to give them
+/// the right to share who uses it. If you wish to use this software under Open
+/// Source Licensing, you must contribute all your source code to the open source
+/// community in accordance with the GPL Version 2 when your application is
+/// distributed. See http://www.gnu.org/copyleft/gpl.html
+///
+/// \par Commercial Licensing
+///
+/// This is the appropriate option if you are creating proprietary applications
+/// and you are not prepared to distribute and share the source code of your
+/// application. Contact info@open.com.au for details.
+///
+/// \par Revision History
+///
+/// \version 1.0 Initial release
+///
+/// \version 1.1 Added rf22_snoop and rf22_specan examples
+///
+/// \version 1.2 Changed default modulation to FSK_Rb2_4Fd36
+/// Some internal reorganisation.
+/// Added RF22Router and RF22Mesh classes plus sample programs to support multi-hop and
+/// automatic route discovery.
+/// \version 1.3 Removed some unnecessary debug messages. Added virtual doArp and isPhysicalAddress
+/// functions to RF22Mesh to support other physical address interpretation schemes (IPV4/IPV6?)
+/// \version 1.4 RF22Router and RF22Mesh were inadvertently left out of the distro.
+/// \version 1.5 Improvements contributed by Peter Mousley: Modem config table is now in flash rather than SRAM,
+/// saving 400 bytes of SRAM. Allow a user-defined buffer size. Thanks Peter.
+/// \version 1.6 Fixed some minor typos on doc and clarified that this code is for the RF22B. Fixed errors in the
+/// definition of the power output constants which were incorrectly set to the values for the RF22.
+/// Reported by Fred Slamen. If you were using a previous version of RF22, you probably were not getting the output
+/// power you thought.
+/// \version 1.7 Added code to initialise GPIO0 and GPIO1 so they can automatically control the TX_ANT and RX_ANT
+/// antenna switching inputs. You must connect GPIO0 to TX_ANT and GPIO1 to RX_ANT for this automatic
+/// antenna switching to occur. Updated doc to reflect this new connection requirement
+/// \version 1.8 Changed the name of RF22_ENLBD in RF22_REG_06_INTERRUPT_ENABLE2 to RF22_ENLBDI because it collided
+/// with a define of the same name in RF22_REG_07_OPERATING_MODE. RF22_REG_05_INTERRUPT_ENABLE1 enable mask
+/// incorrectly used RF22_IFFERROR instead of RF22_ENFFERR. Reported by Steffan Woltjer.
+/// \version 1.9 Fixed typos in RF22_REG_21_CLOCk*. Reported by Steffan Woltjer.
+/// \version 1.10 Fixed a problem where a IFFERR during transmission could cause an infinite loop and a hang.
+/// Reported by Raymond Gilbert.
+/// \version 1.11 Fixed an innocuous typo in RF22::handleInterrupt. Reported by Zhentao.
+///
+/// \version 1.12 Improvements to RF22::init from Guy Molinari to improve compatibility with some
+/// Arduinos. Now reported to be working with official Mega 2560 and Uno.
+/// Updated so compiles on Arduino 1.0.
+///
+/// \version 1.13 Announce google support group
+///
+/// \version 1.14 Added definitions for bits and masks in RF22_REG_1D_AFC_LOOP_GEARSHIFT_OVERRIDE
+/// and RF22_REG_1E_AFC_TIMING_CONTROL
+///
+/// \version 1.15 Small alterations to initialisation code so that SS pin is not set to output: may cause
+/// interference with other devices connected to the Arduino. Testing with Uno: OK.
+///
+/// \version 1.16 Fixed a problem that prevented building with arduino 0021
+///
+/// \version 1.17 Added optional AFC pull-in frequency range argument to setFrequency().
+/// Default AFC pull-in range set to 0.05MHz
+///
+/// \version 1.18 Changed default value for slave slect pin in constructor to be SS, ie the normal one for
+/// the compiled Arduino (D10 for Diecimila, Uno etc and D53 for Mega). This is because some Arduinos such as Mega 2560
+/// reportedly use the type of the SS pin to determine whether to run in slave or master mode. Therfore it
+/// is preferred that the slave select pin actually be the normal SS pin.
+///
+/// \version 1.19 Added new mode() function.
+/// Fixed a potential race condition in RF22Datagram::recvfrom which might cause corrupt from, to, id or flags
+/// under extreme circumstances. Improvements to interrupt hygeine by adding cli()_/sei() around all
+/// RF22 register acceses. Found that 0 length transmit packets confuses the RF22, so they are now forbidden.
+/// Added IPGateway example, which routes UDP messages from an internet connection using an
+/// Ethernet Shield and sends them
+/// to a radio whose ID is based on the UDP port. Replies are sent back to the originating UDP
+/// address and port.
+///
+/// \version 1.20 _mode is now volatile.
+/// RF22::send() now waits until any previous transmission is complete before sending.
+/// RF22::waitPacketSent() now waits for the RF22 to not be in _mode == RF22_MODE_TX
+/// _txPacketSent member is now redundant and removed.
+/// Improvements to interrupt handling and blocking. Now use ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
+/// to prevent reenabling interrupts too soon. Thanks to Roland Mieslinger for this suggestion.
+/// Added some performance measurements to documentation.
+///
+/// \version 1.21 Fixed a case where a receiver buffer overflow could occur. Reported by Joe Tuttle.
+///
+/// \version 1.22 Added documentation after testing with Sparkfun RFM22 Shield DEV-11018.
+/// Fixed incorrect link to register calculator excel file, reported by Joey Morin.
+///
+/// \version 1.23 Added support for alternative SPI interfaces, with default implementation for the standard
+/// Arduino hardware SPI interface. Contributed by Joanna Rutkowska.
+///
+/// \version 1.24 Fixed a problem that could cause corrupted receive messages if a transmit interrupted
+/// a partial receive (as was common with eg ReliableDatagram with poor reception.
+/// Also fixed possible receive buffer overrun.
+/// \version 1.25 More rigorous use of const, additional register defines (RF22_CRCHDRS RF22_VARPKLEN)
+/// and two methods (setPreambleLength()
+/// and setSyncWords())made public. Patch provided by
+/// Matthijs Kooijman.
+/// \author Mike McCauley (mikem@open.com.au)
+
+#ifndef RF22_h
+#define RF22_h
+#include "mbed.h"
+
+#define boolean bool
+
+//#include <wiring.h>
+// These defs cause trouble on some versions of Arduino
+#undef round
+#undef double
+
+// This is the bit in the SPI address that marks it as a write
+#define RF22_SPI_WRITE_MASK 0x80
+
+// This is the maximum message length that can be supported by this library. Limited by
+// the single message length octet in the header.
+// Yes, 255 is correct even though the FIFO size in the RF22 is only
+// 64 octets. We use interrupts to refill the Tx FIFO during transmission and to empty the
+// Rx FIFO during reception
+// Can be pre-defined to a smaller size (to save SRAM) prior to including this header
+#ifndef RF22_MAX_MESSAGE_LEN
+#define RF22_MAX_MESSAGE_LEN 255
+//#define RF22_MAX_MESSAGE_LEN 50
+#endif
+
+// Max number of octets the RF22 Rx and Tx FIFOs can hold
+#define RF22_FIFO_SIZE 64
+
+// Keep track of the mode the RF22 is in
+#define RF22_MODE_IDLE 0
+#define RF22_MODE_RX 1
+#define RF22_MODE_TX 2
+
+// These values we set for FIFO thresholds are actually the same as the POR values
+#define RF22_TXFFAEM_THRESHOLD 4
+#define RF22_RXFFAFULL_THRESHOLD 55
+
+// This is the default node address,
+#define RF22_DEFAULT_NODE_ADDRESS 0
+
+// This address in the TO addreess signifies a broadcast
+#define RF22_BROADCAST_ADDRESS 0xff
+
+// Number of registers to be passed to setModemConfig()
+#define RF22_NUM_MODEM_CONFIG_REGS 18
+
+// Register names
+#define RF22_REG_00_DEVICE_TYPE 0x00
+#define RF22_REG_01_VERSION_CODE 0x01
+#define RF22_REG_02_DEVICE_STATUS 0x02
+#define RF22_REG_03_INTERRUPT_STATUS1 0x03
+#define RF22_REG_04_INTERRUPT_STATUS2 0x04
+#define RF22_REG_05_INTERRUPT_ENABLE1 0x05
+#define RF22_REG_06_INTERRUPT_ENABLE2 0x06
+#define RF22_REG_07_OPERATING_MODE1 0x07
+#define RF22_REG_08_OPERATING_MODE2 0x08
+#define RF22_REG_09_OSCILLATOR_LOAD_CAPACITANCE 0x09
+#define RF22_REG_0A_UC_OUTPUT_CLOCK 0x0a
+#define RF22_REG_0B_GPIO_CONFIGURATION0 0x0b
+#define RF22_REG_0C_GPIO_CONFIGURATION1 0x0c
+#define RF22_REG_0D_GPIO_CONFIGURATION2 0x0d
+#define RF22_REG_0E_IO_PORT_CONFIGURATION 0x0e
+#define RF22_REG_0F_ADC_CONFIGURATION 0x0f
+#define RF22_REG_10_ADC_SENSOR_AMP_OFFSET 0x10
+#define RF22_REG_11_ADC_VALUE 0x11
+#define RF22_REG_12_TEMPERATURE_SENSOR_CALIBRATION 0x12
+#define RF22_REG_13_TEMPERATURE_VALUE_OFFSET 0x13
+#define RF22_REG_14_WAKEUP_TIMER_PERIOD1 0x14
+#define RF22_REG_15_WAKEUP_TIMER_PERIOD2 0x15
+#define RF22_REG_16_WAKEUP_TIMER_PERIOD3 0x16
+#define RF22_REG_17_WAKEUP_TIMER_VALUE1 0x17
+#define RF22_REG_18_WAKEUP_TIMER_VALUE2 0x18
+#define RF22_REG_19_LDC_MODE_DURATION 0x19
+#define RF22_REG_1A_LOW_BATTERY_DETECTOR_THRESHOLD 0x1a
+#define RF22_REG_1B_BATTERY_VOLTAGE_LEVEL 0x1b
+#define RF22_REG_1C_IF_FILTER_BANDWIDTH 0x1c
+#define RF22_REG_1D_AFC_LOOP_GEARSHIFT_OVERRIDE 0x1d
+#define RF22_REG_1E_AFC_TIMING_CONTROL 0x1e
+#define RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE 0x1f
+#define RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE 0x20
+#define RF22_REG_21_CLOCK_RECOVERY_OFFSET2 0x21
+#define RF22_REG_22_CLOCK_RECOVERY_OFFSET1 0x22
+#define RF22_REG_23_CLOCK_RECOVERY_OFFSET0 0x23
+#define RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1 0x24
+#define RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0 0x25
+#define RF22_REG_26_RSSI 0x26
+#define RF22_REG_27_RSSI_THRESHOLD 0x27
+#define RF22_REG_28_ANTENNA_DIVERSITY1 0x28
+#define RF22_REG_29_ANTENNA_DIVERSITY2 0x29
+#define RF22_REG_2A_AFC_LIMITER 0x2a
+#define RF22_REG_2B_AFC_CORRECTION_READ 0x2b
+#define RF22_REG_2C_OOK_COUNTER_VALUE_1 0x2c
+#define RF22_REG_2D_OOK_COUNTER_VALUE_2 0x2d
+#define RF22_REG_2E_SLICER_PEAK_HOLD 0x2e
+#define RF22_REG_30_DATA_ACCESS_CONTROL 0x30
+#define RF22_REG_31_EZMAC_STATUS 0x31
+#define RF22_REG_32_HEADER_CONTROL1 0x32
+#define RF22_REG_33_HEADER_CONTROL2 0x33
+#define RF22_REG_34_PREAMBLE_LENGTH 0x34
+#define RF22_REG_35_PREAMBLE_DETECTION_CONTROL1 0x35
+#define RF22_REG_36_SYNC_WORD3 0x36
+#define RF22_REG_37_SYNC_WORD2 0x37
+#define RF22_REG_38_SYNC_WORD1 0x38
+#define RF22_REG_39_SYNC_WORD0 0x39
+#define RF22_REG_3A_TRANSMIT_HEADER3 0x3a
+#define RF22_REG_3B_TRANSMIT_HEADER2 0x3b
+#define RF22_REG_3C_TRANSMIT_HEADER1 0x3c
+#define RF22_REG_3D_TRANSMIT_HEADER0 0x3d
+#define RF22_REG_3E_PACKET_LENGTH 0x3e
+#define RF22_REG_3F_CHECK_HEADER3 0x3f
+#define RF22_REG_40_CHECK_HEADER2 0x40
+#define RF22_REG_41_CHECK_HEADER1 0x41
+#define RF22_REG_42_CHECK_HEADER0 0x42
+#define RF22_REG_43_HEADER_ENABLE3 0x43
+#define RF22_REG_44_HEADER_ENABLE2 0x44
+#define RF22_REG_45_HEADER_ENABLE1 0x45
+#define RF22_REG_46_HEADER_ENABLE0 0x46
+#define RF22_REG_47_RECEIVED_HEADER3 0x47
+#define RF22_REG_48_RECEIVED_HEADER2 0x48
+#define RF22_REG_49_RECEIVED_HEADER1 0x49
+#define RF22_REG_4A_RECEIVED_HEADER0 0x4a
+#define RF22_REG_4B_RECEIVED_PACKET_LENGTH 0x4b
+#define RF22_REG_50_ANALOG_TEST_BUS_SELECT 0x50
+#define RF22_REG_51_DIGITAL_TEST_BUS_SELECT 0x51
+#define RF22_REG_52_TX_RAMP_CONTROL 0x52
+#define RF22_REG_53_PLL_TUNE_TIME 0x53
+#define RF22_REG_55_CALIBRATION_CONTROL 0x55
+#define RF22_REG_56_MODEM_TEST 0x56
+#define RF22_REG_57_CHARGE_PUMP_TEST 0x57
+#define RF22_REG_58_CHARGE_PUMP_CURRENT_TRIMMING 0x58
+#define RF22_REG_59_DIVIDER_CURRENT_TRIMMING 0x59
+#define RF22_REG_5A_VCO_CURRENT_TRIMMING 0x5a
+#define RF22_REG_5B_VCO_CALIBRATION 0x5b
+#define RF22_REG_5C_SYNTHESIZER_TEST 0x5c
+#define RF22_REG_5D_BLOCK_ENABLE_OVERRIDE1 0x5d
+#define RF22_REG_5E_BLOCK_ENABLE_OVERRIDE2 0x5e
+#define RF22_REG_5F_BLOCK_ENABLE_OVERRIDE3 0x5f
+#define RF22_REG_60_CHANNEL_FILTER_COEFFICIENT_ADDRESS 0x60
+#define RF22_REG_61_CHANNEL_FILTER_COEFFICIENT_VALUE 0x61
+#define RF22_REG_62_CRYSTAL_OSCILLATOR_POR_CONTROL 0x62
+#define RF22_REG_63_RC_OSCILLATOR_COARSE_CALIBRATION 0x63
+#define RF22_REG_64_RC_OSCILLATOR_FINE_CALIBRATION 0x64
+#define RF22_REG_65_LDO_CONTROL_OVERRIDE 0x65
+#define RF22_REG_66_LDO_LEVEL_SETTINGS 0x66
+#define RF22_REG_67_DELTA_SIGMA_ADC_TUNING1 0x67
+#define RF22_REG_68_DELTA_SIGMA_ADC_TUNING2 0x68
+#define RF22_REG_69_AGC_OVERRIDE1 0x69
+#define RF22_REG_6A_AGC_OVERRIDE2 0x6a
+#define RF22_REG_6B_GFSK_FIR_FILTER_COEFFICIENT_ADDRESS 0x6b
+#define RF22_REG_6C_GFSK_FIR_FILTER_COEFFICIENT_VALUE 0x6c
+#define RF22_REG_6D_TX_POWER 0x6d
+#define RF22_REG_6E_TX_DATA_RATE1 0x6e
+#define RF22_REG_6F_TX_DATA_RATE0 0x6f
+#define RF22_REG_70_MODULATION_CONTROL1 0x70
+#define RF22_REG_71_MODULATION_CONTROL2 0x71
+#define RF22_REG_72_FREQUENCY_DEVIATION 0x72
+#define RF22_REG_73_FREQUENCY_OFFSET1 0x73
+#define RF22_REG_74_FREQUENCY_OFFSET2 0x74
+#define RF22_REG_75_FREQUENCY_BAND_SELECT 0x75
+#define RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1 0x76
+#define RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0 0x77
+#define RF22_REG_79_FREQUENCY_HOPPING_CHANNEL_SELECT 0x79
+#define RF22_REG_7A_FREQUENCY_HOPPING_STEP_SIZE 0x7a
+#define RF22_REG_7C_TX_FIFO_CONTROL1 0x7c
+#define RF22_REG_7D_TX_FIFO_CONTROL2 0x7d
+#define RF22_REG_7E_RX_FIFO_CONTROL 0x7e
+#define RF22_REG_7F_FIFO_ACCESS 0x7f
+
+// These register masks etc are named wherever possible
+// corresponding to the bit and field names in the RF-22 Manual
+// RF22_REG_00_DEVICE_TYPE 0x00
+#define RF22_DEVICE_TYPE_RX_TRX 0x08
+#define RF22_DEVICE_TYPE_TX 0x07
+
+// RF22_REG_02_DEVICE_STATUS 0x02
+#define RF22_FFOVL 0x80
+#define RF22_FFUNFL 0x40
+#define RF22_RXFFEM 0x20
+#define RF22_HEADERR 0x10
+#define RF22_FREQERR 0x08
+#define RF22_LOCKDET 0x04
+#define RF22_CPS 0x03
+#define RF22_CPS_IDLE 0x00
+#define RF22_CPS_RX 0x01
+#define RF22_CPS_TX 0x10
+
+// RF22_REG_03_INTERRUPT_STATUS1 0x03
+#define RF22_IFFERROR 0x80
+#define RF22_ITXFFAFULL 0x40
+#define RF22_ITXFFAEM 0x20
+#define RF22_IRXFFAFULL 0x10
+#define RF22_IEXT 0x08
+#define RF22_IPKSENT 0x04
+#define RF22_IPKVALID 0x02
+#define RF22_ICRCERROR 0x01
+
+// RF22_REG_04_INTERRUPT_STATUS2 0x04
+#define RF22_ISWDET 0x80
+#define RF22_IPREAVAL 0x40
+#define RF22_IPREAINVAL 0x20
+#define RF22_IRSSI 0x10
+#define RF22_IWUT 0x08
+#define RF22_ILBD 0x04
+#define RF22_ICHIPRDY 0x02
+#define RF22_IPOR 0x01
+
+// RF22_REG_05_INTERRUPT_ENABLE1 0x05
+#define RF22_ENFFERR 0x80
+#define RF22_ENTXFFAFULL 0x40
+#define RF22_ENTXFFAEM 0x20
+#define RF22_ENRXFFAFULL 0x10
+#define RF22_ENEXT 0x08
+#define RF22_ENPKSENT 0x04
+#define RF22_ENPKVALID 0x02
+#define RF22_ENCRCERROR 0x01
+
+// RF22_REG_06_INTERRUPT_ENABLE2 0x06
+#define RF22_ENSWDET 0x80
+#define RF22_ENPREAVAL 0x40
+#define RF22_ENPREAINVAL 0x20
+#define RF22_ENRSSI 0x10
+#define RF22_ENWUT 0x08
+#define RF22_ENLBDI 0x04
+#define RF22_ENCHIPRDY 0x02
+#define RF22_ENPOR 0x01
+
+// RF22_REG_07_OPERATING_MODE 0x07
+#define RF22_SWRES 0x80
+#define RF22_ENLBD 0x40
+#define RF22_ENWT 0x20
+#define RF22_X32KSEL 0x10
+#define RF22_TXON 0x08
+#define RF22_RXON 0x04
+#define RF22_PLLON 0x02
+#define RF22_XTON 0x01
+
+// RF22_REG_08_OPERATING_MODE2 0x08
+#define RF22_ANTDIV 0xc0
+#define RF22_RXMPK 0x10
+#define RF22_AUTOTX 0x08
+#define RF22_ENLDM 0x04
+#define RF22_FFCLRRX 0x02
+#define RF22_FFCLRTX 0x01
+
+// RF22_REG_0F_ADC_CONFIGURATION 0x0f
+#define RF22_ADCSTART 0x80
+#define RF22_ADCDONE 0x80
+#define RF22_ADCSEL 0x70
+#define RF22_ADCSEL_INTERNAL_TEMPERATURE_SENSOR 0x00
+#define RF22_ADCSEL_GPIO0_SINGLE_ENDED 0x10
+#define RF22_ADCSEL_GPIO1_SINGLE_ENDED 0x20
+#define RF22_ADCSEL_GPIO2_SINGLE_ENDED 0x30
+#define RF22_ADCSEL_GPIO0_GPIO1_DIFFERENTIAL 0x40
+#define RF22_ADCSEL_GPIO1_GPIO2_DIFFERENTIAL 0x50
+#define RF22_ADCSEL_GPIO0_GPIO2_DIFFERENTIAL 0x60
+#define RF22_ADCSEL_GND 0x70
+#define RF22_ADCREF 0x0c
+#define RF22_ADCREF_BANDGAP_VOLTAGE 0x00
+#define RF22_ADCREF_VDD_ON_3 0x08
+#define RF22_ADCREF_VDD_ON_2 0x0c
+#define RF22_ADCGAIN 0x03
+
+// RF22_REG_10_ADC_SENSOR_AMP_OFFSET 0x10
+#define RF22_ADCOFFS 0x0f
+
+// RF22_REG_12_TEMPERATURE_SENSOR_CALIBRATION 0x12
+#define RF22_TSRANGE 0xc0
+#define RF22_TSRANGE_M64_64C 0x00
+#define RF22_TSRANGE_M64_192C 0x40
+#define RF22_TSRANGE_0_128C 0x80
+#define RF22_TSRANGE_M40_216F 0xc0
+#define RF22_ENTSOFFS 0x20
+#define RF22_ENTSTRIM 0x10
+#define RF22_TSTRIM 0x0f
+
+// RF22_REG_14_WAKEUP_TIMER_PERIOD1 0x14
+#define RF22_WTR 0x3c
+#define RF22_WTD 0x03
+
+// RF22_REG_1D_AFC_LOOP_GEARSHIFT_OVERRIDE 0x1d
+#define RF22_AFBCD 0x80
+#define RF22_ENAFC 0x40
+#define RF22_AFCGEARH 0x38
+#define RF22_AFCGEARL 0x07
+
+// RF22_REG_1E_AFC_TIMING_CONTROL 0x1e
+#define RF22_SWAIT_TIMER 0xc0
+#define RF22_SHWAIT 0x38
+#define RF22_ANWAIT 0x07
+
+// RF22_REG_30_DATA_ACCESS_CONTROL 0x30
+#define RF22_ENPACRX 0x80
+#define RF22_MSBFRST 0x00
+#define RF22_LSBFRST 0x40
+#define RF22_CRCHDRS 0x00
+#define RF22_CRCDONLY 0x20
+#define RF22_ENPACTX 0x08
+#define RF22_ENCRC 0x04
+#define RF22_CRC 0x03
+#define RF22_CRC_CCITT 0x00
+#define RF22_CRC_CRC_16_IBM 0x01
+#define RF22_CRC_IEC_16 0x02
+#define RF22_CRC_BIACHEVA 0x03
+
+// RF22_REG_32_HEADER_CONTROL1 0x32
+#define RF22_BCEN 0xf0
+#define RF22_BCEN_NONE 0x00
+#define RF22_BCEN_HEADER0 0x10
+#define RF22_BCEN_HEADER1 0x20
+#define RF22_BCEN_HEADER2 0x40
+#define RF22_BCEN_HEADER3 0x80
+#define RF22_HDCH 0x0f
+#define RF22_HDCH_NONE 0x00
+#define RF22_HDCH_HEADER0 0x01
+#define RF22_HDCH_HEADER1 0x02
+#define RF22_HDCH_HEADER2 0x04
+#define RF22_HDCH_HEADER3 0x08
+
+// RF22_REG_33_HEADER_CONTROL2 0x33
+#define RF22_HDLEN 0x70
+#define RF22_HDLEN_0 0x00
+#define RF22_HDLEN_1 0x10
+#define RF22_HDLEN_2 0x20
+#define RF22_HDLEN_3 0x30
+#define RF22_HDLEN_4 0x40
+#define RF22_VARPKLEN 0x00
+#define RF22_FIXPKLEN 0x08
+#define RF22_SYNCLEN 0x06
+#define RF22_SYNCLEN_1 0x00
+#define RF22_SYNCLEN_2 0x02
+#define RF22_SYNCLEN_3 0x04
+#define RF22_SYNCLEN_4 0x06
+#define RF22_PREALEN8 0x01
+
+// RF22_REG_6D_TX_POWER 0x6d
+#define RF22_TXPOW 0x07
+#define RF22_TXPOW_4X31 0x08 // Not used in RFM22B
+#define RF22_TXPOW_1DBM 0x00
+#define RF22_TXPOW_2DBM 0x01
+#define RF22_TXPOW_5DBM 0x02
+#define RF22_TXPOW_8DBM 0x03
+#define RF22_TXPOW_11DBM 0x04
+#define RF22_TXPOW_14DBM 0x05
+#define RF22_TXPOW_17DBM 0x06
+#define RF22_TXPOW_20DBM 0x07
+// IN RFM23B
+#define RF22_TXPOW_LNA_SW 0x08
+
+// RF22_REG_71_MODULATION_CONTROL2 0x71
+#define RF22_TRCLK 0xc0
+#define RF22_TRCLK_NONE 0x00
+#define RF22_TRCLK_GPIO 0x40
+#define RF22_TRCLK_SDO 0x80
+#define RF22_TRCLK_NIRQ 0xc0
+#define RF22_DTMOD 0x30
+#define RF22_DTMOD_DIRECT_GPIO 0x00
+#define RF22_DTMOD_DIRECT_SDI 0x10
+#define RF22_DTMOD_FIFO 0x20
+#define RF22_DTMOD_PN9 0x30
+#define RF22_ENINV 0x08
+#define RF22_FD8 0x04
+#define RF22_MODTYP 0x30
+#define RF22_MODTYP_UNMODULATED 0x00
+#define RF22_MODTYP_OOK 0x01
+#define RF22_MODTYP_FSK 0x02
+#define RF22_MODTYP_GFSK 0x03
+
+// RF22_REG_75_FREQUENCY_BAND_SELECT 0x75
+#define RF22_SBSEL 0x40
+#define RF22_HBSEL 0x20
+#define RF22_FB 0x1f
+
+// Define this to include Serial printing in diagnostic routines
+//#define RF22_HAVE_SERIAL
+
+//#include <GenericSPI.h>
+//#include <HardwareSPI.h>
+/////////////////////////////////////////////////////////////////////
+/// \class RF22 RF22.h <RF22.h>
+/// \brief Send and receive unaddressed, unreliable datagrams.
+///
+/// This base class provides basic functions for sending and receiving unaddressed,
+/// unreliable datagrams of arbitrary length to 255 octets per packet.
+///
+/// Subclasses may use this class to implement reliable, addressed datagrams and streams,
+/// mesh routers, repeaters, translators etc.
+///
+/// On transmission, the TO and FROM addresses default to 0x00, unless changed by a subclass.
+/// On reception the TO addressed is checked against the node address (defaults to 0x00) or the
+/// broadcast address (which is 0xff). The ID and FLAGS are set to 0, and not checked by this class.
+/// This permits use of the this base RF22 class as an
+/// unaddresed, unreliable datagram service. Subclasses are expected to change this behaviour to
+/// add node address, ids, retransmission etc
+///
+/// Naturally, for any 2 radios to communicate that must be configured to use the same frequence and
+/// modulation scheme.
+class RF22
+{
+public:
+
+ /// \brief Defines register values for a set of modem configuration registers
+ ///
+ /// Defines register values for a set of modem configuration registers
+ /// that can be passed to setModemConfig()
+ /// if none of the choices in ModemConfigChoice suit your need
+ /// setModemConfig() writes the register values to the appropriate RF22 registers
+ /// to set the desired modulation type, data rate and deviation/bandwidth.
+ /// Suitable values for these registers can be computed using the register calculator at
+ /// http://www.hoperf.com/upload/rf/RF22B%2023B%2031B%2042B%2043B%20Register%20Settings_RevB1-v5.xls
+
+ typedef struct
+ {
+ uint8_t hodnota;
+ uint8_t paket;
+ } zprava;
+
+ typedef struct
+ {
+ uint8_t reg_1c; ///< Value for register RF22_REG_1C_IF_FILTER_BANDWIDTH
+ uint8_t reg_1f; ///< Value for register RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE
+ uint8_t reg_20; ///< Value for register RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE
+ uint8_t reg_21; ///< Value for register RF22_REG_21_CLOCK_RECOVERY_OFFSET2
+ uint8_t reg_22; ///< Value for register RF22_REG_22_CLOCK_RECOVERY_OFFSET1
+ uint8_t reg_23; ///< Value for register RF22_REG_23_CLOCK_RECOVERY_OFFSET0
+ uint8_t reg_24; ///< Value for register RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1
+ uint8_t reg_25; ///< Value for register RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0
+ uint8_t reg_2c; ///< Value for register RF22_REG_2C_OOK_COUNTER_VALUE_1
+ uint8_t reg_2d; ///< Value for register RF22_REG_2D_OOK_COUNTER_VALUE_2
+ uint8_t reg_2e; ///< Value for register RF22_REG_2E_SLICER_PEAK_HOLD
+ uint8_t reg_58; ///< Value for register RF22_REG_58_CHARGE_PUMP_CURRENT_TRIMMING
+ uint8_t reg_69; ///< Value for register RF22_REG_69_AGC_OVERRIDE1
+ uint8_t reg_6e; ///< Value for register RF22_REG_6E_TX_DATA_RATE1
+ uint8_t reg_6f; ///< Value for register RF22_REG_6F_TX_DATA_RATE0
+ uint8_t reg_70; ///< Value for register RF22_REG_70_MODULATION_CONTROL1
+ uint8_t reg_71; ///< Value for register RF22_REG_71_MODULATION_CONTROL2
+ uint8_t reg_72; ///< Value for register RF22_REG_72_FREQUENCY_DEVIATION
+ } ModemConfig;
+
+ /// Choices for setModemConfig() for a selected subset of common modulation types,
+ /// and data rates. If you need another configuration, use the register calculator.
+ /// and call setModemRegisters() with your desired settings
+ /// These are indexes into _modemConfig
+ typedef enum
+ {
+ UnmodulatedCarrier = 0, ///< Unmodulated carrier for testing
+ FSK_PN9_Rb2Fd5, ///< FSK, No Manchester, Rb = 2kbs, Fd = 5kHz, PN9 random modulation for testing
+
+ FSK_Rb2Fd5, ///< FSK, No Manchester, Rb = 2kbs, Fd = 5kHz
+ FSK_Rb2_4Fd36, ///< FSK, No Manchester, Rb = 2.4kbs, Fd = 36kHz
+ FSK_Rb4_8Fd45, ///< FSK, No Manchester, Rb = 4.8kbs, Fd = 45kHz
+ FSK_Rb9_6Fd45, ///< FSK, No Manchester, Rb = 9.6kbs, Fd = 45kHz
+ FSK_Rb19_2Fd9_6, ///< FSK, No Manchester, Rb = 19.2kbs, Fd = 9.6kHz
+ FSK_Rb38_4Fd19_6, ///< FSK, No Manchester, Rb = 38.4kbs, Fd = 19.6kHz
+ FSK_Rb57_6Fd28_8, ///< FSK, No Manchester, Rb = 57.6kbs, Fd = 28.8kHz
+ FSK_Rb125Fd125, ///< FSK, No Manchester, Rb = 125kbs, Fd = 125kHz
+
+ GFSK_Rb2Fd5, ///< GFSK, No Manchester, Rb = 2kbs, Fd = 5kHz
+ GFSK_Rb2_4Fd36, ///< GFSK, No Manchester, Rb = 2.4kbs, Fd = 36kHz
+ GFSK_Rb4_8Fd45, ///< GFSK, No Manchester, Rb = 4.8kbs, Fd = 45kHz
+ GFSK_Rb9_6Fd45, ///< GFSK, No Manchester, Rb = 9.6kbs, Fd = 45kHz
+ GFSK_Rb19_2Fd9_6, ///< GFSK, No Manchester, Rb = 19.2kbs, Fd = 9.6kHz
+ GFSK_Rb38_4Fd19_6, ///< GFSK, No Manchester, Rb = 38.4kbs, Fd = 19.6kHz
+ GFSK_Rb57_6Fd28_8, ///< GFSK, No Manchester, Rb = 57.6kbs, Fd = 28.8kHz
+ GFSK_Rb125Fd125, ///< GFSK, No Manchester, Rb = 125kbs, Fd = 125kHz
+
+ OOK_Rb1_2Bw75, ///< OOK, No Manchester, Rb = 1.2kbs, Rx Bandwidth = 75kHz
+ OOK_Rb2_4Bw335, ///< OOK, No Manchester, Rb = 2.4kbs, Rx Bandwidth = 335kHz
+ OOK_Rb4_8Bw335, ///< OOK, No Manchester, Rb = 4.8kbs, Rx Bandwidth = 335kHz
+ OOK_Rb9_6Bw335, ///< OOK, No Manchester, Rb = 9.6kbs, Rx Bandwidth = 335kHz
+ OOK_Rb19_2Bw335, ///< OOK, No Manchester, Rb = 19.2kbs, Rx Bandwidth = 335kHz
+ OOK_Rb38_4Bw335, ///< OOK, No Manchester, Rb = 38.4kbs, Rx Bandwidth = 335kHz
+ OOK_Rb40Bw335 ///< OOK, No Manchester, Rb = 40kbs, Rx Bandwidth = 335kHz
+ } ModemConfigChoice;
+
+ /// Constructor. You can have multiple instances, but each instance must have its own
+ /// interrupt and slave select pin. After constructing, you must call init() to initialise the intnerface
+ /// and the radio module
+ /// \param[in] slaveSelectPin the Arduino pin number of the output to use to select the RF22 before
+ /// accessing it. Defaults to the normal SS pin for your Arduino (D10 for Diecimila, Uno etc, D53 for Mega)
+ /// \param[in] interrupt The interrupt number to use. Default is interrupt 0 (Arduino input pin 2)
+ RF22(PinName slaveSelectPin , PinName mosi, PinName miso, PinName sclk, PinName interrupt );
+
+ /// Initialises this instance and the radio module connected to it.
+ /// The following steps are taken:
+ /// - Initialise the slave select pin and the SPI interface library
+ /// - Software reset the RF22 module
+ /// - Checks the connected RF22 module is either a RF22_DEVICE_TYPE_RX_TRX or a RF22_DEVICE_TYPE_TX
+ /// - Attaches an interrupt handler
+ /// - Configures the RF22 module
+ /// - Sets the frequncy to 434.0 MHz
+ /// - Sets the modem data rate to FSK_Rb2_4Fd36
+ /// \return true if everything was successful
+
+ void obsluhapreruseni();
+ void vypisfifo();
+
+ boolean init();
+
+ /// Issues a software reset to the
+ /// RF22 module. Blocks for 1ms to ensure the reset is complete.
+ void reset();
+
+ /// Reads a single register from the RF22
+ /// \param[in] reg Register number, one of RF22_REG_*
+ /// \return The value of the register
+ uint8_t spiRead(uint8_t reg);
+
+ /// Writes a single byte to the RF22
+ /// \param[in] reg Register number, one of RF22_REG_*
+ /// \param[in] val The value to write
+ void spiWrite(uint8_t reg, uint8_t val);
+
+ /// Reads a number of consecutive registers from the RF22 using burst read mode
+ /// \param[in] reg Register number of the first register, one of RF22_REG_*
+ /// \param[in] dest Array to write the register values to. Must be at least len bytes
+ /// \param[in] len Number of bytes to read
+ void spiBurstRead(uint8_t reg, uint8_t* dest, uint8_t len);
+
+ /// Write a number of consecutive registers using burst write mode
+ /// \param[in] reg Register number of the first register, one of RF22_REG_*
+ /// \param[in] src Array of new register values to write. Must be at least len bytes
+ /// \param[in] len Number of bytes to write
+ void spiBurstWrite(uint8_t reg, const uint8_t* src, uint8_t len);
+
+ /// Reads and returns the device status register RF22_REG_02_DEVICE_STATUS
+ /// \return The value of the device status register
+ uint8_t statusRead();
+
+ /// Reads a value from the on-chip analog-digital converter
+ /// \param[in] adcsel Selects the ADC input to measure. One of RF22_ADCSEL_*. Defaults to the
+ /// internal temperature sensor
+ /// \param[in] adcref Specifies the refernce voltage to use. One of RF22_ADCREF_*.
+ /// Defaults to the internal bandgap voltage.
+ /// \param[in] adcgain Amplifier gain selection.
+ /// \param[in] adcoffs Amplifier offseet (0 to 15).
+ /// \return The analog value. 0 to 255.
+ uint8_t adcRead(uint8_t adcsel = RF22_ADCSEL_INTERNAL_TEMPERATURE_SENSOR,
+ uint8_t adcref = RF22_ADCREF_BANDGAP_VOLTAGE,
+ uint8_t adcgain = 0,
+ uint8_t adcoffs = 0);
+
+
+ /// Reads the wakeup timer value in registers RF22_REG_17_WAKEUP_TIMER_VALUE1
+ /// and RF22_REG_18_WAKEUP_TIMER_VALUE2
+ /// \return The wakeup timer value
+ uint16_t wutRead();
+
+ /// Sets the wakeup timer period registers RF22_REG_14_WAKEUP_TIMER_PERIOD1,
+ /// RF22_REG_15_WAKEUP_TIMER_PERIOD2 and RF22_R<EG_16_WAKEUP_TIMER_PERIOD3
+ /// \param[in] wtm Wakeup timer mantissa value
+ /// \param[in] wtr Wakeup timer exponent R value
+ /// \param[in] wtd Wakeup timer exponent D value
+ void setWutPeriod(uint16_t wtm, uint8_t wtr = 0, uint8_t wtd = 0);
+
+ /// Sets the transmitter and receiver centre frequency
+ /// \param[in] centre Frequency in MHz. 240.0 to 960.0. Caution, some versions of RF22 and derivatives
+ /// implemented more restricted frequency ranges.
+ /// \param[in] afcPullInRange Sets the AF Pull In Range in MHz. Defaults to 0.05MHz (50kHz). Range is 0.0 to 0.159375
+ /// for frequencies 240.0 to 480MHz, and 0.0 to 0.318750MHz for frequencies 480.0 to 960MHz,
+ /// \return true if the selected frquency centre + (fhch * fhs) is within range and the afcPullInRange is within range
+ boolean setFrequency(float centre, float afcPullInRange = 0.05);
+
+ /// Sets the frequency hopping step size.
+ /// \param[in] fhs Frequency Hopping step size in 10kHz increments
+ /// \return true if centre + (fhch * fhs) is within limits
+ boolean setFHStepSize(uint8_t fhs);
+
+ /// Sets the frequncy hopping channel. Adds fhch * fhs to centre frequency
+ /// \param[in] fhch The channel number
+ /// \return true if the selected frquency centre + (fhch * fhs) is within range
+ boolean setFHChannel(uint8_t fhch);
+
+ /// Reads and returns the current RSSI value from register RF22_REG_26_RSSI. If you want to find the RSSI
+ /// of the last received message, use lastRssi() instead.
+ /// \return The current RSSI value
+ uint8_t rssiRead();
+
+ /// Reads and returns the current EZMAC value from register RF22_REG_31_EZMAC_STATUS
+ /// \return The current EZMAC value
+ uint8_t ezmacStatusRead();
+
+ /// Sets the parameters for the RF22 Idle mode in register RF22_REG_07_OPERATING_MODE.
+ /// Idle mode is the mode the RF22 will be in when not transmitting or receiving. The default idle mode
+ /// is RF22_XTON ie READY mode.
+ /// \param[in] mode Mask of mode bits, using RF22_SWRES, RF22_ENLBD, RF22_ENWT,
+ /// RF22_X32KSEL, RF22_PLLON, RF22_XTON.
+ void setMode(uint8_t mode);
+
+ /// If current mode is Rx or Tx changes it to Idle. If the transmitter or receiver is running,
+ /// disables them.
+ void setModeIdle();
+
+ /// If current mode is Tx or Idle, changes it to Rx.
+ /// Starts the receiver in the RF22.
+ void setModeRx();
+
+ /// If current mode is Rx or Idle, changes it to Rx.
+ /// Starts the transmitter in the RF22.
+ void setModeTx();
+
+ /// Returns the operating mode of the library.
+ /// \return the current mode, one of RF22_MODE_*
+ uint8_t mode();
+
+ /// Sets the transmitter power output level in register RF22_REG_6D_TX_POWER.
+ /// Be a good neighbour and set the lowest power level you need.
+ /// After init(), the power wil be set to RF22_TXPOW_8DBM.
+ /// Caution: In some countries you may only select RF22_TXPOW_17DBM if you
+ /// are also using frequency hopping.
+ /// \param[in] power Transmitter power level, one of RF22_TXPOW_*
+ void setTxPower(uint8_t power);
+
+ /// Sets all the registered required to configure the data modem in the RF22, including the data rate,
+ /// bandwidths etc. You cas use this to configure the modem with custom configuraitons if none of the
+ /// canned configurations in ModemConfigChoice suit you.
+ /// \param[in] config A ModemConfig structure containing values for the modem configuration registers.
+ void setModemRegisters(const ModemConfig* config);
+
+ /// Select one of the predefined modem configurations. If you need a modem configuration not provided
+ /// here, use setModemRegisters() with your own ModemConfig.
+ /// \param[in] index The configuration choice.
+ /// \return true if index is a valid choice.
+ boolean setModemConfig(ModemConfigChoice index);
+
+ /// Starts the receiver and checks whether a received message is available.
+ /// This can be called multiple times in a timeout loop
+ /// \return true if a complete, valid message has been received and is able to be retrieved by
+ /// recv()
+ boolean available();
+
+ /// Starts the receiver and blocks until a valid received
+ /// message is available.
+ void waitAvailable();
+
+ /// Starts the receiver and blocks until a received message is available or a timeout
+ /// \param[in] timeout Maximum time to wait in milliseconds.
+ /// \return true if a message is available
+ bool waitAvailableTimeout(uint16_t timeout);
+
+ /// Turns the receiver on if it not already on.
+ /// If there is a valid message available, copy it to buf and return true
+ /// else return false.
+ /// If a message is copied, *len is set to the length (Caution, 0 length messages are permitted).
+ /// You should be sure to call this function frequently enough to not miss any messages
+ /// It is recommended that you call it in your main loop.
+ /// \param[in] buf Location to copy the received message
+ /// \param[in,out] len Pointer to available space in buf. Set to the actual number of octets copied.
+ /// \return true if a valid message was copied to buf
+ boolean recv(uint8_t* buf, uint8_t* len);
+
+ /// Waits until any previous transmit packet is finished being transmitted with waitPacketSent().
+ /// Then loads a message into the transmitter and starts the transmitter. Note that a message length
+ /// of 0 is NOT permitted.
+ /// \param[in] data Array of data to be sent
+ /// \param[in] len Number of bytes of data to send (> 0)
+ /// \return true if the message length was valid and it was correctly queued for transmit
+ boolean send(const uint8_t* data, uint8_t len);
+
+ /// Blocks until the RF22 is not in mode RF22_MODE_TX (ie until the RF22 is not transmitting).
+ /// This effectively waits until any previous transmit packet is finished being transmitted.
+ void waitPacketSent();
+
+ /// Tells the receiver to accept messages with any TO address, not just messages
+ /// addressed to this node or the broadcast address
+ /// \param[in] promiscuous true if you wish to receive messages with any TO address
+ void setPromiscuous(boolean promiscuous);
+
+ /// Returns the TO header of the last received message
+ /// \return The TO header
+ uint8_t headerTo();
+
+ /// Returns the FROM header of the last received message
+ /// \return The FROM header
+ uint8_t headerFrom();
+
+ /// Returns the ID header of the last received message
+ /// \return The ID header
+ uint8_t headerId();
+
+ /// Returns the FLAGS header of the last received message
+ /// \return The FLAGS header
+ uint8_t headerFlags();
+
+ /// Returns the RSSI (Receiver Signal Strength Indicator)
+ /// of the last received message. This measurement is taken when
+ /// the preamble has been received. It is a (non-linear) measure of the received signal strength.
+ /// \return The RSSI
+ uint8_t lastRssi();
+
+ /// Prints a data buffer in HEX.
+ /// For diagnostic use
+ /// \param[in] prompt string to preface the print
+ /// \param[in] buf Location of the buffer to print
+ /// \param[in] len Length of the buffer in octets.
+ static void printBuffer(const uint8_t *buf, uint8_t len);
+
+ /// Sets the length of the preamble
+ /// in 4-bit nibbles.
+ /// Caution: this should be set to the same
+ /// value on all nodes in your network. Default is 8.
+ /// Sets the message preamble length in RF22_REG_34_PREAMBLE_LENGTH
+ /// \param[in] nibbles Preamble length in nibbles of 4 bits each.
+ void setPreambleLength(uint8_t nibbles);
+
+ /// Sets the sync words for transmit and receive in registers RF22_REG_36_SYNC_WORD3
+ /// to RF22_REG_39_SYNC_WORD0
+ /// Caution: this should be set to the same
+ /// value on all nodes in your network. Default is { 0x2d, 0xd4 }
+ /// \param[in] syncWords Array of sync words
+ /// \param[in] len Number of sync words to set
+ void setSyncWords(const uint8_t* syncWords, uint8_t len);
+
+protected:
+ /// This is a low level function to handle the interrupts for one instance of RF22.
+ /// Called automatically by isr0() and isr1()
+ /// Should not need to be called.
+ void handleInterrupt();
+
+ /// Clears the receiver buffer.
+ /// Internal use only
+ void clearRxBuf();
+
+ /// Clears the transmitter buffer
+ /// Internal use only
+ void clearTxBuf();
+
+ /// Fills the transmitter buffer with the data of a mesage to be sent
+ /// \param[in] data Array of data bytes to be sent (1 to 255)
+ /// \param[in] len Number of data bytes in data (> 0)
+ /// \return true if the message length is valid
+ boolean fillTxBuf(const uint8_t* data, uint8_t len);
+
+ /// Appends the transmitter buffer with the data of a mesage to be sent
+ /// \param[in] data Array of data bytes to be sent (0 to 255)
+ /// \param[in] len Number of data bytes in data
+ /// \return false if the resulting message would exceed RF22_MAX_MESSAGE_LEN, else true
+ boolean appendTxBuf(const uint8_t* data, uint8_t len);
+
+ /// Internal function to load the next fragment of
+ /// the current message into the transmitter FIFO
+ /// Internal use only
+ void sendNextFragment();
+
+ /// function to copy the next fragment from
+ /// the receiver FIFO into the receiver buffer
+ void readNextFragment();
+
+ /// Clears the RF22 Rx and Tx FIFOs
+ /// Internal use only
+ void resetFifos();
+
+ /// Clears the RF22 Rx FIFO
+ /// Internal use only
+ void resetRxFifo();
+
+ /// Clears the RF22 Tx FIFO
+ /// Internal use only
+ void resetTxFifo();
+
+ /// This function will be called by handleInterrupt() if an RF22 external interrupt occurs.
+ /// This can only happen if external interrupts are enabled in the RF22
+ /// (which they are not by default).
+ /// Subclasses may override this function to get control when an RF22 external interrupt occurs.
+ virtual void handleExternalInterrupt();
+
+ /// This function will be called by handleInterrupt() if an RF22 wakeup timer interrupt occurs.
+ /// This can only happen if wakeup timer interrupts are enabled in the RF22
+ /// (which they are not by default).
+ /// Subclasses may override this function to get control when an RF22 wakeup timer interrupt occurs.
+ virtual void handleWakeupTimerInterrupt();
+
+ /// Sets the TO header to be sent in all subsequent messages
+ /// \param[in] to The new TO header value
+ void setHeaderTo(uint8_t to);
+
+ /// Sets the FROM header to be sent in all subsequent messages
+ /// \param[in] from The new FROM header value
+ void setHeaderFrom(uint8_t from);
+
+ /// Sets the ID header to be sent in all subsequent messages
+ /// \param[in] id The new ID header value
+ void setHeaderId(uint8_t id);
+
+ /// Sets the FLAGS header to be sent in all subsequent messages
+ /// \param[in] flags The new FLAGS header value
+ void setHeaderFlags(uint8_t flags);
+
+ /// Start the transmission of the contents
+ /// of the Tx buffer
+ void startTransmit();
+
+ /// ReStart the transmission of the contents
+ /// of the Tx buffer after a atransmission failure
+ void restartTransmit();
+
+protected:
+ //GenericSPIClass* _spi;
+
+ /// Low level interrupt service routine for RF22 connected to interrupt 0
+ //static void isr0();
+ void isr0();
+
+ /// Low level interrupt service routine for RF22 connected to interrupt 1
+ //static void isr1();
+private:
+ /// Array of instances connected to interrupts 0 and 1
+ //static RF22* _RF22ForInterrupt[];
+
+
+ volatile uint8_t _mode; // One of RF22_MODE_*
+
+ uint8_t _idleMode;
+ DigitalOut _slaveSelectPin;
+ SPI _spi;
+ InterruptIn _interrupt;
+ uint8_t _deviceType;
+
+ //DigitalOut led1;
+ //DigitalOut led2;
+ //DigitalOut led3;
+ //DigitalOut led4;
+
+ // These volatile members may get changed in the interrupt service routine
+ volatile uint8_t _bufLen;
+ uint8_t _buf[RF22_MAX_MESSAGE_LEN];
+
+ volatile boolean _rxBufValid;
+
+ volatile boolean _txPacketSent;
+ volatile uint8_t _txBufSentIndex;
+
+ volatile uint16_t _rxBad;
+ volatile uint16_t _rxGood;
+ volatile uint16_t _txGood;
+
+ volatile uint8_t _lastRssi;
+};
+
+/// @example rf22_client.pde
+/// Client side of simple client/server pair using RF22 class
+
+/// @example rf22_server.pde
+/// Server side of simple client/server pair using RF22 class
+
+/// @example rf22_datagram_client.pde
+/// Client side of simple client/server pair using RF22Datagram class
+
+/// @example rf22_datagram_server.pde
+/// Server side of simple client/server pair using RF22Datagram class
+
+/// @example rf22_reliable_datagram_client.pde
+/// Client side of simple client/server pair using RF22ReliableDatagram class
+
+/// @example rf22_reliable_datagram_server.pde
+/// Server side of simple client/server pair using RF22ReliableDatagram class
+
+/// @example rf22_router_client.pde
+/// Client side of RF22Router network chain
+
+/// @example rf22_router_server1.pde
+/// Server node for RF22Router network chain
+
+/// @example rf22_router_server2.pde
+/// Server node for RF22Router network chain
+
+/// @example rf22_router_server3.pde
+/// Server node for RF22Router network chain
+
+/// @example rf22_mesh_client.pde
+/// Client side of RF22Mesh network chain
+
+/// @example rf22_mesh_server1.pde
+/// Server node for RF22Mesh network chain
+
+/// @example rf22_mesh_server2.pde
+/// Server node for RF22Mesh network chain
+
+/// @example rf22_mesh_server3.pde
+/// Server node for RF22Mesh network chain
+
+/// @example rf22_test.pde
+/// Test suite for RF22 library
+
+/// @example rf22_snoop.pde
+/// Capture and print RF22 packet from the air
+
+/// @example rf22_specan.pde
+/// Simple spectrum analyser using the RSSI measurements of the RF22
+/// (see <a href="specan1.png">Sample output</a> showing a plot from 395.0MHz to 396.0MHz of a
+/// signal generator at 395.5MHz amplitude modulated at 100% 1kHz)
+///
+
+/// @example IPGateway.pde
+/// Sketch to provide an IP gateway for a set of RF22 radios (Datagram, ReliableDatagram, Router or Mesh)
+/// Routes UDP messages from an internet connection using an Ethernet Shield and sends them
+/// to a radio whose ID is based on the UDP port. Replies are sent back to the originating UDP
+/// address and port
+
+
+#endif