With version 0.7 of GRC I could enter the taps of a filter in the
format [-23, 4, 245, 1235, 245, 4, -23]/32768 in the relevant GRC block
window (taps field) and GRC would do the division calculation for each
i.e the tap vector automatically became [-7.019e-4,1.22e-4, 7.47e-3,
3.76e-2, 7.47e-3, 1.22e-4, -7.019e-4].
Trying to do the same thing in the current version of GRC that is
with GNU Radio 3.2rc2 results in a warning message that the tap vector
cannot be evaluated. Does anyone know how to achieve the same thing as
demonstrated above for version 0.7?
A small thing I know but most coefficients of filters that I have come
fixed point 16 bit integers (-32768<=coeff<=32767) and doing a
more convenient than doing the extra calculation and then formatting the
resultant floating point vector into a copy and pasteable form for entry
into the GRC blocks.
Thanks very much.