diff --git a/components/free_rtos/ethernet_industry/CoE/eth_ecat_pdo_fmmu.hpp b/components/free_rtos/ethernet_industry/CoE/eth_ecat_pdo_fmmu.hpp
index e98110f..bc00842 100644
--- a/components/free_rtos/ethernet_industry/CoE/eth_ecat_pdo_fmmu.hpp
+++ b/components/free_rtos/ethernet_industry/CoE/eth_ecat_pdo_fmmu.hpp
@@ -346,6 +346,8 @@ void EthEcatPdoFMMU::process_fake(Allocator& allocator, uint32_t period_microsec
     ecat_timer.Start();
 
     while(1) {
+        ecat_timer.Wait();
+
         #if PROFILE_LEVEL > 0
         {
             #warning ( "Profiling for RPDO subscribers is enabled !" )
@@ -369,8 +371,8 @@ void EthEcatPdoFMMU::process_fake(Allocator& allocator, uint32_t period_microsec
             }
         }
         #else
-        if(callback_ != nullptr) {
-            callback_();
+        if(callback != nullptr) {
+            callback();
         }
         #endif