Who knows... what i wanted to point-out is around the noise you can hear from the motor. 30KHz... who can hear it here but for sure, the whole thing may not work at all... or not as expected as such high frequency... a little bit why i already suggested something around a linear voltage regulation instead of PWM in the original thread 'Recommendations - Model train controller'
http://www.picbasic.co.uk/forum/show...1&postcount=94

in 250 Hz range PWM, it should work...BTW, let's see what will happen.