SNLA494 February   2026 DP83826E , DP83826I , TMS320F28P650DH , TMS320F28P650DK

1.   1
2.   Summary
3.   Revision History
4. 1Overview of EtherCAT and Communication Model
5. 2EtherCAT Slave Frame Transmission and Diagnostics
   1. 2.1 Frame Processing at EtherCAT Slaves
   2. 2.2 ESC Diagnostics
6. 3EtherCAT Frame Error Fault Cases and Investigation Methods
   1. 3.1 Frame Error Fault Case
   2. 3.2 Frame Error Investigation Case – Fault Isolation Analysis
      1. 3.2.1 ESC PHY0 or PHY1 Fault Isolation Analysis
      2. 3.2.2 ESC F28P65 and MII Fault Isolation Analysis
   3. 3.3 Frame Error Investigation Case – ESC Fault Investigation Within F28P65
      1. 3.3.1 EtherCAT Clock Configuration Failure Analysis
      2. 3.3.2 Recommendations for EtherCAT Clock Configuration
      3. 3.3.3 Addressing Metastability Issue During Clock Domain Crossing Using DCC
7. 4Summary
8. 5References

F28P65 + DP83826 EtherCAT Frame Error Investigation Methods and Application Recommendations