Linearizing an LED for 800 pwm steps'?

[HankMcSpank]

thanks ...i know how to do 256 steps....the problem is it's not enough resolution

I likely need 1024 steps (even a pwm value of 1 has the led quite visible).....at 256 steps a PWM value of 1 is too bright.

I can obviously just use 1024 steps and drive the LED that way ...but without some form of linearizing lookup/data table the LED doesn't fade up/down smoothly (all the brightness action is slanted towards the lower end of the PWM scale)

i've since worked out how to generate the curves I need....but what I still can't figure out is how to put this resulting lookup data into code space.

I read Melanie's "use code space as your playground"....but her syntax relates to PBP assembler....and I'm too clueless to map it to MPASM!

I tried pokecode....but it baulked when the data lookup values got above 255.

Since I can't use Lookup2 .....all I want to do is (for a starter!) get the following 512 lookup values into my program/codespace (my PIC has 7KB of program space ...my program is only about 1800 words...so should be sufficient space to cram list of 512 words in)....

0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,
50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,
96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,
131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,
165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,
199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,
233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,
267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,
301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,
335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,
370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,
405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,
441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,
477,478,479,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511

Just to give a little more detail wrt the end goal - I'm wanting to take an AD reading & convert it to LED brightness ....I'm using 10 bit ADC...so my intention is to divide the AD result by two then use that AD value to reference the corresponding bit of 512 words in that list ....therefore if incoming AD reading is 760 (10 bit reading)....divide it by 2 to get a 9 bit reading of 380 .....now reference the for 380th entry in that sequence of values ...that'll be the PWM value I need to use.


I've been searching/reading all night & I'm as confused now as whe I started - is this even do-able?