I am configuring RAMPS 1.4 with an arduino mega2560 from Ultimachine.
In the configuration.h I set the motherboard to 33, turned off SDSupport and changed DISABLE_Z to false. Left everything else unchanged.
I compiled successfully, downloaded and was able to connect to and communicate with the board from RepG.
I downloaded and installed Pronterface, and am able to connect.
The problem is that my stepper motors only work intermittently, then after a time they stop working at all.
So I removed the pololu and attached a logic analyzer to the step and direction signals of X.
I press the X+100 button on pronterface and I see the direction line go high and some blips on the step line. I press X-100 and I see the direction line go low and no blips on the step line. I press X+100 again and I get no signals at all. After that I get no response until I hard reset.
I have nothing else attached to the board yet. No no heaters, no thermistors, etc.
In Pronterface if I check the Monitor Printer box I see ok T:0 B:0 lines every second so the processor is not frozen.
Can anyone provide insight into where I should start looking for the issue?
Thanks,
DougM
