I am currently using a Infineon / Siemens C515c Micro with on board CAN.

I have a Kitcon development board on which some code to send Can Messages works fine.

I have now made a Prototype board again using the C515c with external EPROM holding the code.

When I blow the EPROM with the same code there is no output on the CAN (P4.6).

I know the code is been accessed as a incrementing variable is output to another port and I can see this working correctly.

I have also written a bit of code that toggles the P4.6 pin and that can also be seen to work.

Has anyone any suggestions either hardware or software could they please help.

If you need to have a look at the code I can email it.

Cheers

Steve