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Operating Systems OS X (Apple) The Alternate DC board for AudioScope.sh. Post 302947893 by wisecracker on Tuesday 23rd of June 2015 02:50:11 PM
Old 06-23-2015
Hi C'688...

I can't as the real values will eventually be determined by trial and error on the initial build and calibration phases. the V to F relationship is none linear and will range from about 700Hz to 2800Hz; (anywhere in that region depending on the voltage).
As I have pointed out the longhand method works but it is not a lookup table and looks mighty ugly...
Each of the 16 possible values will have its own frequency range as its lookup.
 

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mlib_ImageLookUp_Inp(3MLIB)				    mediaLib Library Functions				       mlib_ImageLookUp_Inp(3MLIB)

NAME
mlib_ImageLookUp_Inp - table lookup, in place SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageLookUp_Inp(mlib_image *srcdst, const void **table); DESCRIPTION
The mlib_ImageLookUp_Inp() function maps the source image to the destination image, in place, by using the user-specified lookup table. The following equation is used: srcdst[x][y][i] = table[i][srcdst[x][y][i]] PARAMETERS
The function takes the following arguments: srcdst Pointer to first source and destination image. table Pointer to lookup table. The data type of the lookup table is the same as the destination image. The number of entries in the lookup table is determined by the type of the input image. The format of the lookup table is: table[channel][index] The MLIB_BYTE type entries are indexed from 0 to 255. The MLIB_SHORT type entries are indexed from -32768 to -1, then from 0 to 32767. The MLIB_USHORT type entries are indexed from 0 to 65535. The MLIB_INT type entries are indexed from -2147483648 to -1, and then from 0 to 2147483647. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageLookUp(3MLIB), mlib_ImageLookUp2(3MLIB), mlib_ImageLookUpMask(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageLookUp_Inp(3MLIB)
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