Hi, I currently developing with the MSP430F149 chip and I seem to be running into a lot of bugs. I'm programming in Linux (Redhat 9) using gcc. I am burning the flash through a parallel JTAG connector, using a python script, pyJTAG, if any of you ever heard of it. The problems I'm having are as follows:
- If the program is exactly 2778 bytes, nothing works! If I add one single nop command anywhere in my code (I've tried about 15 arbitrarily locations), everything works fine, and if I take out a single line anywhere in my code, it works fine as well. It just seems to be having trouble with 2778 bytes exact. This is actually the second time this problem came up. The first time I dismissed it, and it solved itself when I changed the code (which I realized that it solved itself because the number of bytes was no longer exactly 2778 bytes). - I cannot compare an unsigned char variable to 0xFF, 0xFE and 0x80, even after I cast them to unsigned chars. This is very strange. I can compare this char to any other value, like 0xFD, 0xFC and 0x81, etc. - Right now I'm having trouble with global variables. I defined a variable in one of my headerfiles. My main program can change and manipulate that variable, but if I manipulate it in the interrupt, I can confirm that change in the interrupt, but once I return to main, the variable reverts back to its previous state (before the interrupt). I've had a few other bugs, but they somehow seem to fix themselves. I don't know if these bugs are inherent in the hardware, or if its my firmware, or the compiler, or even Linux itself. I've been suspecting my code and have been looking through it for a long time now, but I've cut down everything to a bare minimum and still no fix. Now I'm going to guess that some of you might try to disprove me by writing very simple algorithms to test my 3 bugs and report that it works. I know they work, I've been developing this thing for a couple of months now, but sometimes they don't work. These bugs just spring out of no where every now and then, sometimes they go away, sometimes they don't. If any of you experts even came across some bugs that I've come across, or anything similar ones, please share your solutions. Even if you've seen the problems and have no solution, please share your experiences so that I'll know that its not just me! Thanks a million, Mike, a very fustrated programmer at the moment. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/CFFolB/TM ---------------------------------------------------------------------~-> To unsubscribe from the msp430 group, send an email to: msp430-unsubscr...@egroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/msp430/ <*> To unsubscribe from this group, send an email to: msp430-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
