Marius, PCW from Mesa has kindly built a bit file for the 7i76e for me that has remapped the smart serial interface to a UART See https://forum.linuxcnc.org/27-driver-boards/33286-bit-file-for-mesa-7i76e-with-uart#99388 He says he does not know if it is complete or how to drive it.
I thought I'd start with a couple of Arduinos with MAX488 chips to play with this as I don't have a Hypertherm at this stage. The MAX488's remap the Arduino 2 wire serial interface to the required 4 wire connection as per this post http://www.homebuiltrovs.com/rovforum/viewtopic.php?f=15&t=1047 Once I have a working Arduino/Hypertherm emulator, it would be time to substitute the 7i76e at the opposite end and see what happens. I've been really pushed for time recently so don't hold your breath. From what I can see, the Hypertherm pins map exactly to the MAX488 pins. Rod Webster 0435 765 611 Vehicle Modifications Network www.vehiclemods.net.au On 22 September 2017 at 15:54, Marius Liebenberg <[email protected]> wrote: > Thanks a lot Alexander. That looks like the right thing. > Do you have a snippet that shows how to instantiate and connect? > > ------ Original Message ------ > From: "Alexander Rössler" <[email protected]> > To: "Marius Liebenberg" <[email protected]>; "EMC developers" < > [email protected]> > Sent: 2017-09-21 18:10:38 > Subject: Re: [Emc-developers] Mesa RS-422 hal example > > Hello Marius, >> >> The PktUart HAL driver should work for you. I implemented something >> similar recently. There is an example in the Machinekit sources. >> >> Best regards, >> Alexander >> >> Marius Liebenberg writes: >> >> Hi >>> I asked this on the EMC list but thought it should be more relevant >>> here. >>> >>> I need to write a custom RS-422 protocol to control a plasma cutter. I >>> have a mesa 7i44 (amongst other's ) on the system. >>> I have never used or seen any examples of how to communicate to custom >>> hardware via the RS-422 on the mesa cards. Is there anyone out there >>> that has some examples that I can look at to get started please? >>> Or some advise will do as well thanks. >>> >>> >>> >>> ----------------------------- >>> Regards / Groete >>> >>> Marius D. Liebenberg >>> +27 82 698 3251 >>> +27 12 743 6064 >>> >>> >>> --- >>> This email has been checked for viruses by Avast antivirus software. >>> https://www.avast.com/antivirus >>> ----------------------------------------------------------- >>> ------------------- >>> Check out the vibrant tech community on one of the world's most >>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> _______________________________________________ >>> Emc-developers mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-developers >>> >> >> >> -- >> Alexander Rössler >> [email protected] >> +43 680 1348338 >> Lebnergasse 1/7/7 >> 1210 Wien - Austria >> ATU72251528 >> > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
