I have two sets of MC9SDT256B based systems. oscillator freq. 4.0Mz. so bus frequency should be 2.0Mz with PLL clock "disabled". After I build up a project with codewarrior. Codewarrior waywardly
sets the internal bus clock 8.0Hz. If I set up my timers literally according to the real value. i.e. I need
PWM frequency 45Hz. I setup PMW frequency in codewarrior 45Hz.I would get 11.0+Hz. Also, my pulse
width measurement also shows the reading pulse width is 4 times as the real ones. This seems not quite right although I can justify manually. Please check the attached screen shot of the setup.
What mistakes could I make?
Any response would be really appreciated
codewarset.jpg
Message Edited by t.dowe on 2009-09-04 03:12 PM
