Hi Martin, [quote userid="566770" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1522211/mcu-plus-sdk-am243x-mcu-plus-sdk-am243x/5871319#5871319"]I noticed today that the define ENABLE_MULTIPLE_SM_ACCESS_IN_SINGLE_DATAGRAM in tiescbsp.h is set to 0 per default[/quote] This is fine as the EtherCAt firmware dynamically configures the delay to 0x98 based on the number of FMMU entries and the access permission of these entries. [quote userid="566770" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1522211/mcu-plus-sdk-am243x-mcu-plus-sdk-am243x/5871319#5871319"]However, we still do not reach OP with the Conformance Test (it still works with TwinCAT). The LRW frame seems to be cut. At the end, where the working counter should be, you see the CRC32 value of the frame. It is there, because the frame was cut.[/quote] Thank you for the confirmation. The WKC of 31328 shows that there's some configuration mismatch in the processing path, which is forwarding incorrect values. We will check further on this. Regards, Aaron
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