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[SX128x] Fixed type conflict in max()

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This commit is contained in:
jgromes 2020-04-07 13:42:30 +02:00
parent 46be852915
commit 7c9f422e0c
1 changed files with 5 additions and 5 deletions
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10
src/modules/SX128x/SX128x.cpp
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@ -841,8 +841,8 @@ uint32_t SX128x::getTimeOnAir(size_t len) {
// get SF coefficients
float coeff1 = 0;
uint8_t coeff2 = 0;
uint8_t coeff3 = 0;
int16_t coeff2 = 0;
int16_t coeff3 = 0;
if(sf < 7) {
// SF5, SF6
coeff1 = 6.25;
@ -861,13 +861,13 @@ uint32_t SX128x::getTimeOnAir(size_t len) {
}
// get CRC length
uint8_t N_bitCRC = 16;
int16_t N_bitCRC = 16;
if(_crcLoRa == SX128X_LORA_CRC_OFF) {
N_bitCRC = 0;
}
// get header length
uint8_t N_symbolHeader = 20;
int16_t N_symbolHeader = 20;
if(_headerType == SX128X_LORA_HEADER_IMPLICIT) {
N_symbolHeader = 0;
}
@ -876,7 +876,7 @@ uint32_t SX128x::getTimeOnAir(size_t len) {
uint32_t N_symbolPreamble = (_preambleLengthLoRa & 0x0F) * (uint32_t(1) << ((_preambleLengthLoRa & 0xF0) >> 4));
// calculate the number of symbols
N_symbol = (float)N_symbolPreamble + coeff1 + 8.0 + ceil(max(8 * len + N_bitCRC - coeff2 + N_symbolHeader, 0) / (float)coeff3) * (float)(_cr + 4);
N_symbol = (float)N_symbolPreamble + coeff1 + 8.0 + ceil(max((int16_t)(8 * len + N_bitCRC - coeff2 + N_symbolHeader), (int16_t)0) / (float)coeff3) * (float)(_cr + 4);
} else {
// long interleaving - abandon hope all ye who enter here