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fixes #3283

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proddy
2026-10-12 19:56:55 +02:00
parent 9328c946d5
commit 4fb5d366d9
2 changed files with 4 additions and 1 deletions
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src/uart/emsuart_esp32.cpp
+3 -1
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@@ -171,7 +171,9 @@ uint8_t EMSuart::transmit(const uint8_t * buf, const uint8_t len) {
return EMS_TX_STATUS_OK;
}
auto tx_mode = tx_mode_ != EMS_TXMODE_AUTO ? tx_mode_ : EMSbus::is_ht3() ? EMS_TXMODE_HT3 : EMSbus::is_ems2() ? EMS_TXMODE_EMSPLUS : EMS_TXMODE_EMS;
// Auto: prefer EMS+ over HT3. Some Bosch heat pumps set the HT3 address mask (source MSB)
// but need EMS+ pacing; HT3-first caused FF→E3 echo corruption (#3283, #3245).
auto tx_mode = tx_mode_ != EMS_TXMODE_AUTO ? tx_mode_ : EMSbus::is_ems2() ? EMS_TXMODE_EMSPLUS : EMSbus::is_ht3() ? EMS_TXMODE_HT3 : EMS_TXMODE_EMS;
// TXMODE is EMS+ with long delay
if (tx_mode == EMS_TXMODE_EMSPLUS) {