Well, it work perfect in all of the profesional drivers I have. The most important thing is the firmware are the same, and can use it whit no change. This is the electronics I use. 2 HD74HC08P: This chip is a 4 AND logic gate 1 SN74HC04N: This chip es a 6 INVERTER logic gate. Each AND chip control 2 Drivers, and 1 INVERTER chip, control up to 6 Drivers. In my case, I use 3 Drivers in the X,Y,by Gustavo Tenuto - Developers
Endlane, that's exactly what I was thinking in the last hour. I found the HD74LS04 and 08 gates NOT and AND... I will try this, if it work I publish the result. Thanks a lot.by Gustavo Tenuto - Developers
Please Jo, I have the same problem... can you help me?. Regards. Gus.by Gustavo Tenuto - Firmware - mainstream and related support
In marlin, board 33, use pin 54 and 55 (A0 and A1) to control Step and Dir... If I connect the CW to pin 54 and CCW to pin55, and GND, allways turn to the same way in repetier host. If I change the pins (CW to pin 55 and CCW to pin 54) allways turn to the other way... thats my problems. I have 100 profesional stepper drivers like this and need to use to control 3d Printer. This topic was discuseby Gustavo Tenuto - Developers
Hi, joeb1, thanks for the reply... In my case, all the drivers have only 1 pin CW and 1 pin CCW only... if I conect to arduino and program directly works fine in both directions, but in Marlin firmware the Step/Dir metod dont work... beacouse the drivers have 2 pulse 1 for each direction, and in Marlin have 1 pulse and 1 digital (step/dir). I read in this forum someone doing the necesary code chaby Gustavo Tenuto - Developers
Hi, I have stepper drivers whit pins CW+- and CCW+- instead the standard pololus Step/Dir pins... now need to know if anybody change some lines in marlin to work in this mode?. Actually if I conect to arduino and run repetier, the motors move in the same direction ever. If change the pins manually runs in the other direction... Thanksby Gustavo Tenuto - Developers