Using L297/L298 with Sanguino Hi, I have burnt like 8 Polulu/Stepsticks. Those are costly and have long waiting time. So I was trying to run it with L297/L298. The only problem is Polulu/Stepstick the DIR signal is on high, while on L297 it is on a low pulse. Is there a way to change the signal, in the Configuration.h? I'm using Splinter https://reprap.org/forum/read.php?158,236831,236831#msg-236831 Sat, 14 Mar 2026 19:29:26 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?158,236831,306915#msg-306915 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,306915#msg-306915
nice work man :)

can you share the firmware of reprap while using stepper driver 1.2

thanks]]> learner_m Sanguino(lolu) Wed, 05 Feb 2014 23:47:34 -0500 https://reprap.org/forum/read.php?158,236831,238417#msg-238417 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,238417#msg-238417
Quote

I couldn't find any setting in configuration.h file.

Use a decent firmware, then. Teacup uses macros (in pinio.h) for such things for cases exactly like yours.]]> Traumflug Sanguino(lolu) Thu, 22 Aug 2013 04:30:21 -0400 https://reprap.org/forum/read.php?158,236831,238131#msg-238131 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,238131#msg-238131
7404 is dirt cheap and I already had 1 lying unused. So it was a better solution, for now.

If anyone can point me to a setting in configuration.h file that would be the best solution.]]> AnandMG Sanguino(lolu) Wed, 21 Aug 2013 04:23:37 -0400 https://reprap.org/forum/read.php?158,236831,237811#msg-237811 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,237811#msg-237811
Quote

Used a 7404 invertor IC.

Impressive how quite some people prefer to add costly hardware instead of changing a line of software code or two. Glad you got it working.]]> Traumflug Sanguino(lolu) Tue, 20 Aug 2013 07:30:59 -0400 https://reprap.org/forum/read.php?158,236831,237651#msg-237651 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,237651#msg-237651 Just explaining in case anyone else tries it out.
First I had issues even using 7404 as the L297/8 circuit & Sanguino weren't linked. I was using a separate power source for Sanguino and another for the L297/8. Hence, so there was no absolute ground for the 7404, and hence it wasn't always high. When I used the same source, it worked like a charm.]]> AnandMG Sanguino(lolu) Mon, 19 Aug 2013 15:56:29 -0400 https://reprap.org/forum/read.php?158,236831,237504#msg-237504 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,237504#msg-237504 AnandMG Sanguino(lolu) Mon, 19 Aug 2013 05:05:59 -0400 https://reprap.org/forum/read.php?158,236831,236964#msg-236964 Re: Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,236964#msg-236964 Stepper Driver 1.2 work just fine as a Pololu replacement. No microstepping, of course.

Also, DIR isn't a pulse, but a continuous signal. Can be inverted in about all firmwares.]]> Traumflug Sanguino(lolu) Sat, 17 Aug 2013 07:20:18 -0400 https://reprap.org/forum/read.php?158,236831,236831#msg-236831 Using L297/L298 with Sanguino https://reprap.org/forum/read.php?158,236831,236831#msg-236831
I have burnt like 8 Polulu/Stepsticks. Those are costly and have long waiting time. So I was trying to run it with L297/L298.

The only problem is Polulu/Stepstick the DIR signal is on high, while on L297 it is on a low pulse. Is there a way to change the signal, in the Configuration.h? I'm using Splinter]]> AnandMG Sanguino(lolu) Fri, 16 Aug 2013 17:02:18 -0400