I am using the LPC900 PWM using CCU example programme, and I have a problem finding the relation between the brightness of the LED and the value of the registers OCRAH:OCRAL. I don't understand why a value of 0x000F in OCRAH:OCRAL gives a brightness of 25% as mentionned in the code. Could someone explain it to me? thanks in advance
here is the link of the program : http://www.keil.com/download/docs/203.asp the line is "initialize Duty-Cycle channel A 0x0100 => 25%" in the CCU_init function. It's almost at the end of the code just before the declaration of the init function. thanks for your help
using CCU example programme, ... I don't understand neither do I, since i have no idea what the "CCU example programme" is. There is a remote chance that I might help if you gave a link to the code and a line number or such to where " gives a brightness of 25% as mentionned in the code" is. Of course I know it is my duty to, for free, hunt up every obscure reference anyone makes, but today my paying job interfer with that. Erik
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