hello all, i have ported the freertos to at91sam7s512 base on at91sam7s256 porting i did before. i develop under the IAR 5.2 and using freertos version  is 511. when the first task is called by the scheduler I got data abort and the program crash. did any one deals with this kind of problem before? maybe I miss some issue in the cstartup file ? thanks in advance Avi  

I think the only thing you would need to change would be the map file as the 512 has more flash and ram. Other than that I think the two devices are the same.

that’s what i did, still it is not working. do you have an example of freertos application running on at91sam7s512? if so,  I will be glad to get this demo. thanks