99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
#include "SX1231.h"
|
|
|
|
SX1231::SX1231(Module* mod) : RF69(mod) {
|
|
|
|
}
|
|
|
|
uint8_t SX1231::begin(float freq = 434.0, float br = 48.0, float rxBw = 125.0, float freqDev = 50.0, int8_t power = 13) {
|
|
// set module properties
|
|
_mod->init(USE_SPI, INT_BOTH);
|
|
|
|
// try to find the SX1231 chip
|
|
uint8_t i = 0;
|
|
bool flagFound = false;
|
|
while((i < 10) && !flagFound) {
|
|
uint8_t version = _mod->SPIreadRegister(RF69_REG_VERSION);
|
|
if((version == 0x21) || (version == 0x22) || (version == 0x23)) {
|
|
flagFound = true;
|
|
_chipRevision = version;
|
|
} else {
|
|
#ifdef KITELIB_DEBUG
|
|
Serial.print("SX1231 not found! (");
|
|
Serial.print(i + 1);
|
|
Serial.print(" of 10 tries) RF69_REG_VERSION == ");
|
|
|
|
char buffHex[5];
|
|
sprintf(buffHex, "0x%02X", version);
|
|
Serial.print(buffHex);
|
|
Serial.println();
|
|
#endif
|
|
delay(1000);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if(!flagFound) {
|
|
DEBUG_PRINTLN_STR("No SX1231 found!");
|
|
SPI.end();
|
|
return(ERR_CHIP_NOT_FOUND);
|
|
} else {
|
|
DEBUG_PRINTLN_STR("Found SX1231!");
|
|
}
|
|
|
|
// configure settings not accessible by API
|
|
uint8_t state = config();
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
// configure publicly accessible settings
|
|
state = setFrequency(freq);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
_rxBw = 125.0;
|
|
state = setBitRate(br);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
state = setRxBandwidth(rxBw);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
state = setFrequencyDeviation(freqDev);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
state = setOutputPower(power);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
// default sync word values 0x2D01 is the same as the default in LowPowerLab RFM69 library
|
|
uint8_t syncWord[] = {0x2D, 0x01};
|
|
state = setSyncWord(syncWord, 2);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
// SX1231 V2a only
|
|
if(_chipRevision == SX1231_CHIP_REVISION_2_A) {
|
|
// modify default OOK threshold value
|
|
state = _mod->SPIsetRegValue(SX1231_REG_TEST_OOK, SX1231_OOK_DELTA_THRESHOLD);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
|
|
// enable OCP with 95 mA limit
|
|
state = _mod->SPIsetRegValue(RF69_REG_OCP, RF69_OCP_ON | RF69_OCP_TRIM, 4, 0);
|
|
if(state != ERR_NONE) {
|
|
return(state);
|
|
}
|
|
}
|
|
|
|
return(ERR_NONE);
|
|
}
|