Sign in

username:

password:



Not a member?

Search c54x



Search tips

Subscribe to c54x



c54x by Keywords

5409 | 5416 | AD5 | ADC | BIOS | Boot | Booting | Bootloader | C540 | C5402 | C5409 | C5416 | CCS | Codec | DMA | Dmad | DSK | DSKPlus | Dsplib | EVM | FFT | FIR | Flash | GPIO | HPI | Initialization | Interrupt | JTAG | LOG_printf | MCBSP | RFFT | RTDX | Sampling | STLM | UART | VC540

Discussion Groups

Discussion Groups | TMS320C54x | IIR filter coefficient conversion from float to Q15

Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).

  

Post a new Thread

IIR filter coefficient conversion from float to Q15 - megha daga - May 18 8:42:01 2006



hi everyone
I am working on IIR filter designing. I am gonna use the function iircas51. I am designing the
filter using matlab and I have a question regarding converion of filter coefficients from float
to Q15 (as expected in DSP). 
I saw there was a previous thread on that, but couldnt get the whole answer to my question.
From matlab I am getting coefficient values greater than 1. Sometimes they are greater than 2
too. 
I know I can get fixed point coefficients from matlab directly, but I dont have that specific
toolbox. 
Can someone kindly suggest me how to convert these float values to Q15 format.
Kindly reply.
Thanking You
Megha daga


(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )