I am using a uVision 3 to write a firmware program for a TI chipcon CC1110 chip. Lately I am having VERY strange troubles with the compiler... I write a code. And it works great. Then I add a line of code. Any line which has no logic meaning like int k=0; (This isn't a specific example..this happens with ANY line of code,anywhere in the program). Then I burn the program to the chip and suddenly it doesnt work although no logical change ha been made. Then I write k=0;k=0;k=0;k=0; a few times (don't remember the number of times you need).Then I burn the code again and it works perfect! I add another k=0; ... it stops working....add some other lines...works fine. IM GOING CRAZY this makes no sense at all!! it seems that the number of code lines needs to be aligned to a certain size.This should not happen.This is not a memory issue for sure since I still have 16K of memory left.
Is this a known keil compiler bug??What should I do??
Thank you very much for your ideas and advice No need for VIP treatment, just trying to solve my problems...
What I have tried to do so far...(I'm very new to this stuff,this is the first firmware I'm writing ever)
1)First..I checked the code itself to be sure that Im not adding something that ruins the logic. Its not a logic problem for certain.
2) There is no use of function pointers in the program There are no uninitialized pointers. 3)I tried to figure out the Memory Map files and what they mean to see if there is an overflow (not so successfully to be honest...) When I compile the program it shows how much space it uses and its far from the limits of the chip.I dont think its a memory problem since I add lines of code and it stops working. Then I add some more line of code (more memory usage) and it works fine. As far as I know the chip has 32K of flash memory a 4K SRAM.
does you processor reset upon the failure? does it happen when you run your program on the simulator?
could you post a quick description of your program? what is it designed to do and how it achieves that?