Hello,

Sorry if this gets posted twice I am trying to sort out hoew to use this forum.

I have been working on a project that uses the CME11E9-EVBU board, LCD, and keypad. I am also currently coding in C with Micro-IDE.

I am very much a noob and have made a lot of progress but have been stuck now for a couple weeks! I have exhausted all my tech supports as they no longer reply to my emails, sadly :( .

I have a code that works fine with interrupts and everything when I ran it from RAM (address $2000) but now that I need the system to be stand alone and run in EEPROM I am having problems.

I first just changed the starting address to the new location ($E000) but then started having problems with the LCD displaying garbage and nothing working. I tested the original simple code I had and it loads ans runs fine into EEPROM, so I am pretty sure that the EEPROM is working fine.

I have commented out most of my code and the problem seems to be with the interrupts. Once I enable the respective TMSK1/2 and the enable the interrupts (CLI) everything goes wrong. However, if I comment out the interrupt enable command the LCD and keypad all work great. This would be fine except the interrupts are vital to my project. As far as which interrupts I am using, I am using TOC2, IRQ, and RTI.

So my question is, what could I be doing wrong or what else would need to be address to run in EEPROM instead of RAM?

I would post my code in its entirety but it is now well over 2000 lines but I will post whatever or email it to anyone who thinks they can help.

I apologies if this ends up being trivial, as I mentioned previously this is all new to me and this project has gone way beyond my training.

Thanks in advance,
-Bryan

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Wow, that took some time to post. Since then I have determined my problem is from not properly vector mapping the interrupts into ROM.

I seem to have fixed this but I still randomly have garbage start scrolling onto my LCD and I am not sure why yet. Sometimes the code works great then it will just start acting acting up.

Any ideas or thought would be great.

Thanks.
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