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RTX Mailbox Example does not work with LPC2294

Dear All,

I want to use RTX with Mailboxes but I have a Problem to get it run on the LPC2294. I took the Mailbox Example and changed the processor to the LPC2294. After that I changed the DEBUG Target to the ULINK ARM Debugger and added the IAP 256kB to the Flash Download Setup.

Now when I start to debug the Aplication it runs to the main and after that it jumps to the DAbt_Handler when I try to execute the init_serial function.

I found out (with unassambling R14) that this error is generated in the os_clock_interrupt0 function in RTX_Config.c.

Does anybody has any idea what this could be. For me it seems to be problem with the memory allocation but I have no idea where it comes from...

Big thanks for the help,

Christian