Hi, I´m working on the TI TMS320F2812 DSP. My program is activated by 
external interrupt xint2 and basically receives 2 variables from SCI, uses 
the ADC to adquire 3 DC voltages from potentiometers, and uses those 5 
variables to make some calculations using IQmath and deliver the results 
through the digital I/O.

Due to noise present at the potentiometers, there is a variation in the 
digital values of the voltages, which I've tried reduce with iir filtering 
using the sprc082 library.
Before working on the actual proyect, I've modified one of TI's examples 
(Gpio_toggle) to adquire one DC voltage from ADC and filter it. Reading all 
.pdf's and tutorials I've designed the filter, calculated the coefficients, 
added the corresponding files to the proyect and after some minor debugging 
it ran succesfully.

But when I've implemented it on the main proyect, it didn't work. It 
compiles succesfully, with no errors, but when running falls on the 
illegal_isr routine and it halts there. Using Mixed source and ASM mode to 
look where the problem is and running step by step I've discovered that 
after the instruction:

iir.init(&iir);

the proyect that works jumps to _IIR5BIQ32_init in the iir32.asm file 
(Dissasembly), goes through the code and then return to the Gpiotoggle.c, 
which is ok.

But the other one just jumps under .word 0xA1FF label on the Dissasembly, 
executes the following lines which doesn't have anything to do with my 
program and continue going on until it falls on the Illegal_Isr routine. The 
long jump seems to be the problem, but I've written the same code on both 
programs and there are no files missing.

Any help or comment would be greatly appreciated, as I don't know what else 
check out!

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