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[sx127x] Fix preamble MSB register always written as zero (#14457)

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Jonathan Swoboda
2026-03-04 12:57:45 -05:00
committed by GitHub
co-authored by Claude Opus 4.6
parent b2e8544c58
commit 5ba880f19b
1 changed files with 2 additions and 2 deletions
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esphome/components/sx127x/sx127x.cpp
+2 -2
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@@ -186,7 +186,7 @@ void SX127x::configure_fsk_ook_() {
} else {
this->write_register_(REG_PREAMBLE_DETECT, PREAMBLE_DETECTOR_OFF);
}
this->write_register_(REG_PREAMBLE_SIZE_MSB, this->preamble_size_ >> 16);
this->write_register_(REG_PREAMBLE_SIZE_MSB, this->preamble_size_ >> 8);
this->write_register_(REG_PREAMBLE_SIZE_LSB, this->preamble_size_ & 0xFF);
// config sync generation and setup ook threshold
@@ -214,7 +214,7 @@ void SX127x::configure_lora_() {
// config preamble
if (this->preamble_size_ >= 6) {
this->write_register_(REG_PREAMBLE_LEN_MSB, this->preamble_size_ >> 16);
this->write_register_(REG_PREAMBLE_LEN_MSB, this->preamble_size_ >> 8);
this->write_register_(REG_PREAMBLE_LEN_LSB, this->preamble_size_ & 0xFF);
}