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[RF69] a fix for invalid sync word length setting

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Linar Yusupov 2025-03-05 21:20:46 +03:00 • committed by GitHub
parent d605bc2058
commit 564b277f6e
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GPG key ID: B5690EEEBB952194
1 changed files with 3 additions and 3 deletions
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6
src/modules/RF69/RF69.cpp
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@ -696,7 +696,7 @@ int16_t RF69::setOutputPower(int8_t pwr, bool highPower) {
int16_t RF69::setSyncWord(const uint8_t* syncWord, size_t len, uint8_t maxErrBits) { int16_t RF69::setSyncWord(const uint8_t* syncWord, size_t len, uint8_t maxErrBits) {
// check constraints // check constraints
if((maxErrBits > 7) || (len > 8)) { if((maxErrBits > 7) || (len == 0) || (len > 8)) {
return(RADIOLIB_ERR_INVALID_SYNC_WORD); return(RADIOLIB_ERR_INVALID_SYNC_WORD);
} }
@ -712,12 +712,12 @@ int16_t RF69::setSyncWord(const uint8_t* syncWord, size_t len, uint8_t maxErrBit
RADIOLIB_ASSERT(state); RADIOLIB_ASSERT(state);
// set the length // set the length
state = this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_SYNC_CONFIG, len, 5, 3); state = this->mod->SPIsetRegValue(RADIOLIB_RF69_REG_SYNC_CONFIG, len-1, 5, 3);
// set sync word register // set sync word register
this->mod->SPIwriteRegisterBurst(RADIOLIB_RF69_REG_SYNC_VALUE_1, syncWord, len); this->mod->SPIwriteRegisterBurst(RADIOLIB_RF69_REG_SYNC_VALUE_1, syncWord, len);
if(state == RADIOLIB_ERR_NONE) { if(state == RADIOLIB_ERR_NONE) {
this->syncWordLength = len; this->syncWordLength = len-1;
} }
return(state); return(state);