Hi Everybody, i have the following problem and i hope someone between you have the solution. IÂ've wrote a programm to generate a sine waveform from pwm signals. This sine waveform has a variable frequency from 10 to 100Hz, with a step of 0.1Hz.IÂ've done this, using a look up table with more than 7000 values,i.e values for 10,for 10.1,for 10.2 ...... My first question is: does somebody know how to do this without using so many values? I want also to control the amplitude(with a step of 0.5%) of the sine waveform. Do i need another look up table for this? or is there a possibility to do this with the same look up table for the frequencies. Your Ideas will be a great help for me. Thanks. Note that the frequency of the pwm must remain constant.