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MSchmitt, you're so smart! Without your hint, I would never find a clue out from the complex asm codes.
Just as what you have said, the default boot loader can't access 16-bits srams.
After I transform my sram to 8-bit width, everything is ok.
Thanks for your rapid help. Well, to help others avoid making the same mistakes that I have made while programing epcs, I'd like to list my mistakes:
1) Forgot assigning AS pins as regular IO, which is necessary for cyclone III.
2) Use JTAG other than AS mode;
3) The problem described in this post.
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hi, zuo, i have the same pb, could you tell me where can i find a sram controler of 8 bit
thx
Honored Contributor
