 DSP functions of "dsPIC" can make fine FIR filters which tap count exceeds 100. In this tutorial,
I explain how to handle those coefficients.
The following figure is 127-tap FIR filter. We need to generate its coefficients
and quantize them in order to implement the filter into a dsPIC. We use
"DSPLinks" to do those tasks.
First of all, you need to download DSPLinks and install it on your PC.
Please start "DSPLinks" after installation.
A blank schematic appears.
Then please click "Parts" (Transistor icon) and click anywhere
on the schematic. "Parts Select" dialog appears. Choose RMZLPF
and click OK.
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