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v1.0 of the code

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main
cheetah 4 years ago
parent de5e316b0f
commit 9913d477ce
3 changed files with 135 additions and 139 deletions
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12
pocsag-transmit-test/src/main.cpp
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@ -16,9 +16,10 @@
SX1276 radio = new Module(LORA_SS, LORA_DIO0, LORA_RST, LORA_DIO1); SX1276 radio = new Module(LORA_SS, LORA_DIO0, LORA_RST, LORA_DIO1);
POCSAGTransmitter transmitter; POCSAGTransmitter transmitter;
void setup() { void setup() {
Serial.begin(115200); Serial.begin(115200);
int state = radio.beginFSK(434.230,1.2,4.5); int state = radio.beginFSK(868.23,1.2,4.5);
if (state == ERR_NONE) { if (state == ERR_NONE) {
Serial.println(F("success!")); Serial.println(F("success!"));
} else { } else {
@ -26,12 +27,17 @@ void setup() {
Serial.println(state); Serial.println(state);
while (true); while (true);
} }
//int state2 = radio.transmit("Hello World!");
Serial.println("initialized modem"); Serial.println("initialized modem");
transmitter.begin(&radio); transmitter.begin(&radio);
Serial.println("initialized transmitter"); Serial.println("initialized transmitter");
delay(2e2); delay(2e2);
transmitter.test(); transmitter.queuePage(133701, 3, "Testbericht 0"); // should never be sent
transmitter.clearQueue();
transmitter.queuePage(133701, 3, "Testbericht 1");
transmitter.queuePage(133703, 3, "Testbericht -2");
transmitter.queuePage(133706, 3, "Testbericht --3");
transmitter.queuePage(133707, 3, "Testbericht ---4");
transmitter.transmitBatch();
} }
void loop() { void loop() {

211
pocsag-transmit-test/src/pocsag_transmitter.cpp
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@ -2,149 +2,112 @@
#include "pocsag_encoder.h" #include "pocsag_encoder.h"
#define POCSAG_MAX_BUFFER_SIZE 2000 // 2000 QBYTEs
POCSAGTransmitter::POCSAGTransmitter() { POCSAGTransmitter::POCSAGTransmitter() {
Serial.println("malloc"); POCSAG_DEBUG_PRINTLN("malloc'ating and prefilling encodingBuffer");
transmitterData = (uint32_t *)malloc(sizeof(uint32_t) * POCSAG_MAX_BUFFER_SIZE); //TODO: make this static allocated for (int i=0;i<POCSAG_MAX_BUFFER_SIZE;i++) transmitterData[i] = 0xFFFFFFFF;
for (int z=0;z<POCSAG_MAX_BUFFER_SIZE;z++) transmitterData[z] = 0xFFFFFFFF; for (int i=0;i<POCSAG_MAX_ENCODING_BUFFER_SIZE;i++) encodingBuffer[i] = 0xFFFFFFFF;
encodingBuffer = (uint32_t *)malloc(sizeof(uint32_t) * POCSAG_MAX_BUFFER_SIZE); //TODO: make this static allocated
for (int z=0;z<POCSAG_MAX_BUFFER_SIZE;z++) encodingBuffer[z] = 0xFFFFFFFF;
} }
void POCSAGTransmitter::begin(SX1278 *radio) { void POCSAGTransmitter::begin(SX1278 *radio) {
_radio = radio; _radio = radio;
_currentRadio = _radio;
_radio->setFrequencyDeviation(4.5); _radio->setFrequencyDeviation(4.5);
/*_radio->_mod->SPIsetRegValue(SX127X_REG_FDEV_MSB, 0x00); // 512 baud testing
_radio->_mod->SPIsetRegValue(SX127X_REG_FDEV_LSB, 75);*/ //uint16_t bitRate = 62500; //62500; //(SX127X_CRYSTAL_FREQ * 1000.0) / 0.512;
// _radio->setEncoding(RADIOLIB_ENCODING_NRZ); //_radio->_mod->SPIsetRegValue(SX127X_REG_BITRATE_MSB, (bitRate & 0xFF00) >> 8, 7, 0);
_radio->_mod->SPIsetRegValue(SX127X_REG_PAYLOAD_LENGTH, 0x00); //_radio->_mod->SPIsetRegValue(SX127X_REG_BITRATE_LSB, bitRate & 0x00FF, 7, 0);
_radio->_mod->SPIsetRegValue(SX127X_REG_FIFO_THRESH, SX127X_TX_START_FIFO_NOT_EMPTY | 0x0F);
// _radio->pubmod->SPIsetRegValue(SX127X_REG_FIFO_THRESH, SX127X_TX_START_FIFO_NOT_EMPTY | SX127X_FIFO_THRESH);
//_radio->pubmod->SPIsetRegValue(SX127X_REG_PREAMBLE_LSB, 0x00);
//_radio->setPreambleLength(0);
uint16_t bitRate = 62500; //62500; //(SX127X_CRYSTAL_FREQ * 1000.0) / 0.512;
_radio->_mod->SPIsetRegValue(SX127X_REG_BITRATE_MSB, (bitRate & 0xFF00) >> 8, 7, 0);
_radio->_mod->SPIsetRegValue(SX127X_REG_BITRATE_LSB, bitRate & 0x00FF, 7, 0);
_radio->_mod->SPIsetRegValue(SX127X_REG_PA_RAMP, SX1278_NO_SHAPING);
_radio->_mod->SPIsetRegValue(SX127X_REG_PACKET_CONFIG_1, SX127X_PACKET_FIXED | SX127X_DC_FREE_NONE | SX127X_CRC_OFF | SX127X_CRC_AUTOCLEAR_ON | SX127X_ADDRESS_FILTERING_OFF, 7, 0);
_radio->_mod->SPIsetRegValue(SX127X_REG_PACKET_CONFIG_2, SX127X_DATA_MODE_PACKET, 6, 6);
_radio->setCRC(false); _radio->setCRC(false);
_radio->setEncoding(RADIOLIB_ENCODING_NRZ);
_radio->setDataShaping(RADIOLIB_SHAPING_NONE);
_radio->setPreambleLength(0); _radio->setPreambleLength(0);
_radio->setBitRate(1.2);
// pinz
pinMode(POCSAG_PIN_DIO1, INPUT);
pinMode(POCSAG_PIN_DIO2, OUTPUT);
} }
void POCSAGTransmitter::test() {
_radio->standby();
_radio->_mod->SPIsetRegValue(SX127X_REG_DIO_MAPPING_1, SX127X_DIO0_PACK_PACKET_SENT);
size_t completeLength = 0;
uint8_t * transmitterByteDataPointer = (uint8_t *)transmitterData; void test2();
Serial.print(F("transmitterData: ")); Serial.println ((unsigned long int)transmitterData, HEX); void POCSAGTransmitter::clearQueue() {
Serial.print(F("transmitterByteDataPointer: ")); Serial.println ((unsigned long int)transmitterByteDataPointer, HEX); queueCount = 0;
/* transmitterLength = 0;
for (int y = 0; y < 13; y++) { }
size_t beforeLength = completeLength + 0; int8_t POCSAGTransmitter::getQueueCount() {
size_t messageLength = textMessageLength(y, 133701, 80); return queueCount;
uint32_t *transmission = (uint32_t *)malloc(sizeof(uint32_t) * messageLength); }
encodeTransmission(y, 133701 + y, 3, "01234567890123456789012345678901234567890123456789012345678901234567890123456789", transmission); bool POCSAGTransmitter::isActive() {
completeLength += messageLength; return transmitterState;
Serial.println(); }
Serial.print("messageLength="); Serial.println(messageLength, DEC); void POCSAGTransmitter::queuePage(uint32_t ric, uint8_t functionBit, char *text) {
Serial.println("MESSAGE encoded:"); size_t beforeLength = transmitterLength + 0;
size_t messageLength = textMessageLength(queueCount, ric, strlen(text));
//uint32_t *transmission = (uint32_t *)malloc(sizeof(uint32_t) * messageLength);
uint32_t *encodingBufferPointer = encodingBuffer;
encodeTransmission(queueCount, ric, functionBit, text, encodingBufferPointer);
transmitterLength += messageLength;
#ifdef POCSAG_DEBUG
POCSAG_DEBUG_PRINTLN();
POCSAG_DEBUG_PRINT("RIC: "); POCSAG_DEBUG_PRINT(ric, DEC);
POCSAG_DEBUG_PRINT(" F: "); POCSAG_DEBUG_PRINTLN(functionBit, DEC);
POCSAG_DEBUG_PRINT("TEXT: "); POCSAG_DEBUG_PRINTLN(text);
POCSAG_DEBUG_PRINTLN();
POCSAG_DEBUG_PRINT("messageLength="); POCSAG_DEBUG_PRINTLN(messageLength, DEC);
POCSAG_DEBUG_PRINTLN("MESSAGE encoded:");
for (size_t i = 0; i < messageLength; i++) for (size_t i = 0; i < messageLength; i++)
Serial.print(transmission[i], HEX); POCSAG_DEBUG_PRINT(encodingBuffer[i], HEX);
Serial.println(); POCSAG_DEBUG_PRINTLN();
#endif
// copy it to the correct place lol
for (size_t i = 0; i < messageLength; i++) { for (size_t i = 0; i < messageLength; i++) {
size_t baseOffset = (beforeLength * sizeof(uint32_t)) + (i * sizeof(uint32_t)); transmitterData[ beforeLength + i ] = encodingBuffer[ i ];
transmitterByteDataPointer[ baseOffset + 00 ] = ((transmission[ i ] >> 24) & 0xFF);
transmitterByteDataPointer[ baseOffset + 01 ] = ((transmission[ i ] >> 16) & 0xFF);
transmitterByteDataPointer[ baseOffset + 02 ] = ((transmission[ i ] >> 8) & 0xFF);
transmitterByteDataPointer[ baseOffset + 03 ] = (transmission[ i ] & 0xFF);
} }
free(transmission); //free(transmission);
/*Serial.println("TX encoded after free:"); queueCount++;
for (size_t i = 0; i < messageLength; i++)
Serial.print(transmission[i], HEX);/
}
*/
uint32_t testTransmission[ 18 + 13 ] = {
// 18 words, 576 bits of preamble
0xAAAAAAAA, 0xAAAAAAAA,
0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA,
0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA,
// The real data starts here
0x7CD215D8, 0x7A89C197, 0x7A89C197, 0x7A89C197, 0x7A89C197, 0x7A89C197, 0x7A89C197, 0x7A89C197,
0x7A89C197, 0x4F5A0109, 0xC2619CE1, 0x7A89C197, 0x7A89C197,
};
completeLength = 18+13;
for (size_t i = 0; i < completeLength; i++) {
size_t baseOffset = (0 * sizeof(uint32_t)) + (i * sizeof(uint32_t));
transmitterByteDataPointer[ baseOffset + 00 ] = ((testTransmission[ i ] >> 24) & 0xFF);
transmitterByteDataPointer[ baseOffset + 01 ] = ((testTransmission[ i ] >> 16) & 0xFF);
transmitterByteDataPointer[ baseOffset + 02 ] = ((testTransmission[ i ] >> 8) & 0xFF);
transmitterByteDataPointer[ baseOffset + 03 ] = (testTransmission[ i ] & 0xFF);
} }
Serial.print(F("transmitterData: ")); Serial.println ((unsigned long int)transmitterData, HEX); bool POCSAGTransmitter::transmitBatch() {
Serial.print(F("transmitterByteDataPointer: ")); Serial.println ((unsigned long int)transmitterByteDataPointer, HEX); if (transmitterState > 0) return false; // we already started
if (transmitterLength < 16) return false; // dont start if we have less than 16 bytes
Serial.println();
Serial.println("TX encoded in big buffer:");
for (size_t i = 0; i < completeLength*4; i++)
Serial.print(transmitterByteDataPointer[i], HEX);
Serial.println();
Serial.print("completeLength="); Serial.println(completeLength, DEC);
Serial.print(F("transmitterData: ")); Serial.println ((unsigned long int)transmitterData, HEX);
Serial.print(F("transmitterByteDataPointer: ")); Serial.println ((unsigned long int)transmitterByteDataPointer, HEX);
uint8_t * transmissionChunk = (uint8_t *)malloc(16);
for (int i=0;i<16;i++) transmissionChunk[i] = i%2==0?0x55 : 0xAA; // setting it all to 0xFF to see where memcpy works
// do encoding
byte irq2 = 0x00;
//memcpy(transmissionChunk, transmitterByteDataPointer, 16);
writeFIFOChunk(transmitterByteDataPointer, 16);
transmitterByteDataPointer+=16;
/*for (int i=0;i<16;i++) {
transmissionChunk[ i ] = *transmitterByteDataPointer;
transmitterByteDataPointer++;
}*/
//writeFIFOChunk(transmissionChunk, 16);
Serial.println("starting tx");
_radio->setMode(SX127X_TX);
/*for (int i=4; i < completeLength; i+=4) {
//memcpy(transmissionChunk, transmitterByteDataPointer, 16);
transmitterByteDataPointer+=16;
writeFIFOChunk(transmissionChunk, 16);
delay(20);
do {
irq2 = _radio->_mod->SPIgetRegValue(SX127X_REG_IRQ_FLAGS_2);
Serial.print(irq2 >> 4 & 1, HEX);
} while ((irq2 >> 4 & 1) > 0);
}*/
//Serial.println("free'd transmissionChunk, waiting for PacketSent");
do {
irq2 = _radio->_mod->SPIgetRegValue(SX127X_REG_IRQ_FLAGS_2);
// Serial.print(irq2 >> 3 & 1, HEX);
} while (((irq2 >> 3) & 1) == 0);
_radio->standby(); _radio->standby();
free(transmissionChunk); #ifdef POCSAG_DEBUG
Serial.println("done"); POCSAG_DEBUG_PRINT(F("transmitterData: ")); POCSAG_DEBUG_PRINTLN ((unsigned long int)transmitterData, HEX);
Serial.print(F("transmitterData: ")); Serial.println ((unsigned long int)transmitterData, HEX); POCSAG_DEBUG_PRINT(F("transmitterData: ")); POCSAG_DEBUG_PRINTLN((unsigned long int)transmitterData, HEX);
Serial.print(F("transmitterByteDataPointer: ")); Serial.println ((unsigned long int)transmitterByteDataPointer, HEX); POCSAG_DEBUG_PRINTLN();
POCSAG_DEBUG_PRINTLN("TX encoded in big buffer:");
for (size_t i = 0; i < transmitterLength; i++)
POCSAG_DEBUG_PRINT(transmitterData[i], HEX);
POCSAG_DEBUG_PRINTLN();
POCSAG_DEBUG_PRINT("transmitterLength="); POCSAG_DEBUG_PRINTLN(transmitterLength, DEC);
POCSAG_DEBUG_PRINT(F("transmitterData: ")); POCSAG_DEBUG_PRINTLN((unsigned long int)transmitterData, HEX);
POCSAG_DEBUG_PRINTLN("starting tx");
#endif
transmitterState = true;
transmitterBitOffset = 32;
transmitterOffset = 0;
// attach DCLK interrupt
attachInterrupt(digitalPinToInterrupt(POCSAG_PIN_DIO1), onTransmitterClock, RISING);
delay(10); //giving it some time
_currentRadio->transmitDirect();
return true;
} }
void POCSAGTransmitter::writeFIFOChunk(uint8_t* data, size_t len) { static void IRAM_ATTR onTransmitterClock() {
for (int z=0;z<len;z++) Serial.print(data[ z ], HEX); transmitterBitOffset--;
Serial.println(); digitalWrite(POCSAG_PIN_DIO2, ((transmitterData[ transmitterOffset ] >> transmitterBitOffset) & 1) == 0);
_radio->_mod->SPItransfer(0x80, 0x00, data, NULL, len); if (transmitterBitOffset == 0) { // lets shift to next byte
transmitterBitOffset = 32;
transmitterOffset++;
}
if (transmitterOffset > transmitterLength) {
_currentRadio->standby();
detachInterrupt(POCSAG_PIN_DIO1);
transmitterState = false;
}
} }

43
pocsag-transmit-test/src/pocsag_transmitter.h
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@ -1,23 +1,50 @@
#if !defined(_POCSAG_TRANSMITTER_H) #if !defined(_POCSAG_TRANSMITTER_H)
#define _POCSAG_TRANSMITTER_H #define _POCSAG_TRANSMITTER_H
#include <RadioLib.h> #include <RadioLib.h>
// #include <SX1278.h>
#define POCSAG_MAX_ENCODING_BUFFER_SIZE 70 // 70 QBYTEs should be enough for max 80char Messages
#define POCSAG_MAX_BUFFER_SIZE 2000 // 2000 QBYTEs
#define POCSAG_PIN_DIO1 33 // DCLK
#define POCSAG_PIN_DIO2 32 // DATA
// #define POCSAG_DEBUG
#define POCSAG_DEBUG_PORT Serial
#if defined(POCSAG_DEBUG)
#define POCSAG_DEBUG_PRINT(...) { RADIOLIB_DEBUG_PORT.print(__VA_ARGS__); }
#define POCSAG_DEBUG_PRINTLN(...) { RADIOLIB_DEBUG_PORT.println(__VA_ARGS__); }
#else
#define POCSAG_DEBUG_PRINT(...) {}
#define POCSAG_DEBUG_PRINTLN(...) {}
#endif
/*! /*!
* POCSAG Transmitter * POCSAG Transmitter
- catSIXe - catSIXe, encoder is partly transformed from RPITX, with my old contributions(batch-encoding etc.) from the old github
*/ */
static SX1278* _currentRadio; // we need to put this pointer static for the ISR
static uint32_t transmitterData[ POCSAG_MAX_BUFFER_SIZE ]; // complete transmission
static uint32_t encodingBuffer[ POCSAG_MAX_ENCODING_BUFFER_SIZE ]; // small static allocated memory, for storing a encoded chunk
static uint16_t transmitterLength;
static uint16_t transmitterOffset;
static uint8_t transmitterBitOffset;
static bool transmitterState;
static void IRAM_ATTR onTransmitterClock();
class POCSAGTransmitter { class POCSAGTransmitter {
public: public:
uint32_t *transmitterData; SX1278* _radio;
uint32_t *encodingBuffer;
explicit POCSAGTransmitter(); explicit POCSAGTransmitter();
void begin(SX1278 *radio); void begin(SX1278 *radio);
void queuePage(uint32_t ric, char* text); void clearQueue();
void transmitBatch(); int8_t getQueueCount();
bool isActive();
void queuePage(uint32_t ric, uint8_t functionBit, char* text);
bool transmitBatch();
void test(); void test();
void writeFIFOChunk(uint8_t* data, size_t len); private:
SX1278* _radio; int8_t queueCount = 0;
}; };
#endif #endif
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