latest motor firmware not working

[garyc]

Hi Paul,

Sorry for the intrusion.

Following on from the last motor decoder problem thread I also had the same issues.

I built the motor decoder and programmed the latest firmware into the pic 12f629 without issue.

Using a MERG programmer I can modify the CV,s and confirm there values when I look at the eeprom addresses.

Using a dual trace scope I can confirm correct waveforms on pins 6 and 7.

When I try to run the motor I get no activity on either of the motor (l272) drive pins from the pic even though i get acknowledge pulses to the motor when in service mode.

I can only conclude that the firmware has been broken since its last update as so many other users have had good results  before 2013.

I used the firmware published on the internet.

Regards,

Gary Charlton

[Paul Harman]

Hi Gary

Are you using 14, 27, or 28 speed steps? This firmware does not support 126 speedstep mode.

[garyc]

Hi Paul,
Many thanks for your help. My command station was set to 128 step by default. After setting to 28 step I can now measure Pwm pulses on pins 3 and 4,5 of the pic.

Thanks again

Gary