Improve start of frame detection (#647)

syssi · Dec 29, 2024 · 923bb2a · 923bb2a
1 parent ae0afde
commit 923bb2a
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/components/jk_modbus/jk_modbus.cpp b/components/jk_modbus/jk_modbus.cpp
@@ -53,8 +53,10 @@ bool JkModbus::parse_jk_modbus_byte_(uint8_t byte) {
   const uint8_t *raw = &this->rx_buffer_[0];
 
   // Byte 0: Start sequence (0x4E)
-  if (at == 0)
-    return true;
+  if (at == 0) {
+    // return false to reset buffer
+    return raw[0] == 0x4E;
+  }
   uint8_t address = raw[0];
 
   // Byte 1: Start sequence (0x57)