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[RF69] Added -1 as alias for lowest supported frequency deviation

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This commit is contained in:
jgromes 2021-02-13 17:41:41 +01:00
parent c8ce3160fc
commit abbefd1226
1 changed files with 8 additions and 2 deletions
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10
src/modules/RF69/RF69.cpp
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@ -505,8 +505,14 @@ int16_t RF69::setRxBandwidth(float rxBw) {
}
int16_t RF69::setFrequencyDeviation(float freqDev) {
// set frequency deviation to lowest available setting (required for digimodes)
float newFreqDev = freqDev;
if(freqDev < 0.0) {
newFreqDev = 0.6;
}
// check frequency deviation range
if(!((freqDev + _br/2 <= 500))) {
if(!((newFreqDev + _br/2 <= 500))) {
return(ERR_INVALID_FREQUENCY_DEVIATION);
}
@ -515,7 +521,7 @@ int16_t RF69::setFrequencyDeviation(float freqDev) {
// set frequency deviation from carrier frequency
uint32_t base = 1;
uint32_t fdev = (freqDev * (base << 19)) / 32000;
uint32_t fdev = (newFreqDev * (base << 19)) / 32000;
int16_t state = _mod->SPIsetRegValue(RF69_REG_FDEV_MSB, (fdev & 0xFF00) >> 8, 5, 0);
state |= _mod->SPIsetRegValue(RF69_REG_FDEV_LSB, fdev & 0x00FF, 7, 0);