From a64720b677d1d3cb6eec0f4ea16bb663b70289ee Mon Sep 17 00:00:00 2001
From: Alex Lisitsyn <aleks@espressif.com>
Date: Mon, 29 Apr 2024 20:51:20 +0800
Subject: [PATCH] Bugfix/modbus rtu skips first packet t35meas is disabled

---
 freemodbus/modbus/rtu/mbrtu.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/freemodbus/modbus/rtu/mbrtu.c b/freemodbus/modbus/rtu/mbrtu.c
index 77a2c2f..963fe7d 100644
--- a/freemodbus/modbus/rtu/mbrtu.c
+++ b/freemodbus/modbus/rtu/mbrtu.c
@@ -137,8 +137,11 @@ eMBRTUStart( void )
      */
     eRcvState = STATE_RX_INIT;
     vMBPortSerialEnable( TRUE, FALSE );
-    vMBPortTimersEnable(  );
-
+#if CONFIG_FMB_TIMER_PORT_ENABLED
+    vMBPortTimersEnable( );
+#else
+    pxMBPortCBTimerExpired();
+#endif
     EXIT_CRITICAL_SECTION(  );
 }