Add flush before disabling tx (#17247)

2023-03-14 09:28:00 +01:00 · 2023-03-14 09:28:00 +01:00 · 1a6076c253
parent bda32739a8
commit 1a6076c253
2 changed files with 2 additions and 0 deletions
--- a/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
+++ b/lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
@ -460,6 +460,7 @@ size_t TasmotaSerial::write(uint8_t b) {
    size = 1;
  }
  if (m_tx_enable_pin > -1) {
+    flush();  // Must wait for all data sent
    digitalWrite(m_tx_enable_pin, LOW);
  }
  return size;
--- a/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
+++ b/lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
@ -171,6 +171,7 @@ uint8_t TasmotaModbus::Send(uint8_t device_address, uint8_t function_code, uint1
  write(frame, framepointer);
 #ifdef TASMOTA_MODBUS_TX_ENABLE
  if (mb_tx_enable_pin > -1) {
+    flush();  // Must wait for all data sent
    digitalWrite(mb_tx_enable_pin, LOW);
  }
 #endif  // TASMOTA_MODBUS_TX_ENABLE