Fozzy Bear Posted September 18, 2016 Share Posted September 18, 2016 I was given a digital Pendolino a while ago and found that when trying to change the address, RM would not read the decoder. Everything always came up as 255. Ran it for a while, tried again but then it just died. I thought it was a broken wire to the motor but just packed it away for another day.That day was today and still the same problem. I got the poops with it and just left in on the track with the throttle open and went to get a beer. When I got back, it had started creeping along and gradually got faster and faster until after about 4 minutes, it was at top speed and ran perfectly.Stopped it and the same thing happened. I thought "there is something familiar about the time" then realised 4 minutes and 15 seconds is 255 seconds. Somehow, after reading the chip and getting 255 for the acceleration, I tried to change the address but the 255 acceleration was written back into the chip. Did a reset, ran it on address 3 and away it went.It seems the trick to these chips is "Don't read them" . Just write whatever CV you want to change and leave it. Kind of odd I thought but it works. Link to comment Share on other sites More sharing options...
96RAF Posted September 18, 2016 Share Posted September 18, 2016 Good sleuth work to latch onto the accel numbers. Link to comment Share on other sites More sharing options...
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