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Fix SX1280 preamble calculation bug

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jacob.eva 2024-07-02 12:15:40 +01:00
parent 3f8d012457
commit 11c9522d53
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1 changed files with 6 additions and 4 deletions
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10
Radio.cpp
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@ -1819,18 +1819,20 @@ void sx128x::setPacketParams(uint32_t preamble, uint8_t headermode, uint8_t leng
// because there is no access to these registers on the sx1280, we have // because there is no access to these registers on the sx1280, we have
// to set all these parameters at once or not at all. // to set all these parameters at once or not at all.
uint8_t buf[7]; uint8_t buf[7];
// calculate exponent and mantissa values for modem // calculate exponent and mantissa values for modem
uint8_t e = 1; uint8_t e = 1;
uint8_t m = 1; uint8_t m = 1;
uint32_t preamblelen; uint32_t preamblelen;
for (e <= 15; e++;) { while (e <= 15) {
for (m <= 15; m++;) { while (m <= 15) {
preamblelen = m * (uint32_t(1) << e); preamblelen = m * (pow(2,e));
if (preamblelen >= preamble) break; if (preamblelen >= preamble) break;
m++;
} }
if (preamblelen >= preamble) break; if (preamblelen >= preamble) break;
m = 0;
e++;
} }
buf[0] = (e << 4) | m; buf[0] = (e << 4) | m;