On Thursday 03 November 2016 12:55:49 Gene Heskett wrote: > Greetings all; > > My G0704 is at the moment, precluded from my bringing a rotary table > down from the shop and just plugging it in when I need it, which is > how I have it configured on the toy mill, which, while I have > the5i25's to do it, is still running software stepping o the parport. > But because I needed some home switches on the G0704, that 4th stepper > was removed from the loadrt line to get me usable I/O for homeing. > > My Bad, as I should have built the 3nd, cable & bob for P2 on the > 5i25. I can change it of course but the big box has no remaining room > for the 4th driver anyway without mounting it and a supply externally. > I will probably do it eventually, but its going to be a major PIMA to > get it all rebuilt. > > As I initially setup the 7i90HD, my thoughts are that what gpio I do > use should probably start at the last available pins on the 3rd 50 pin > connector, and grow downward from there, so that if, in the future, I > add another encoder, pwmgen or stepgen to run some accessory (toolpost > grinder for instance) to the controlled items, they will presumably be > grown across the 1st 50 pin connector to 2 2nd, and eventually meeting > the gpio in the middle, but at no point, given time and imagination > limits remaining for me, will I be forced to re-write my hal file, and > rewire a boatload of stuff to get it out of the way when another > stepgen or whathaveyou is added. > > Is this a realistic target? > Connectors are here & programming cable made.
?Apparently no. Reading between the lines of some of the non-bit files, its apparent that the stepgens are all on the 50-72 connector which I'd have to assume is the third one, on the end of the card. And that all outputs are present in true an complement on adjacent pins, so CAN be used as differential drive sources. Not 100% confirmed but it looks as if the other stuff follows a similar pattern but not all start at that individual connectors pin 1, or first active pin as the case may be. Since separating out the 7i90 *.bit files into just the 7i90_spi family, I still have not heard which is the best one to load with mesaflash when starting out with a 2 axis+spindle+1encoder lathe. So, unless someone has a better idea, I am going to put the 7i90_spi_svst8_4.bit file in it, and see what comes up in dmesg. At loadrt time in the hal file, I'll ask for an extra one of each so I have a spare already allocated. I am drowning in a lack of human readable docs here folks, doesn't anyone have a life preserver? I'd say my cable is good, a query:gene@sheldon:/lib/firmware/hm2/7i90$ sudo mesaflash --epp --device 7i90HD [sudo] password for gene: EPP device 7I90HD at 0x0378:0x0778 Next question, ISTR useing the --write option, but I see in the --help output, a --program option, so which is it? Humm, I just had it do a --readhmid, and it looks to be already programmed. But does not identify what bit file it might be. >From the readhmid printout, I have 8 stepgens, 4 pwmgens and 4 encoders. Must be time to rig a psu for it, and see if I can hook it to the pi. Damn I wish I had a monitor on the pi. But that connector/adapter is in a bag, someplace in the USPS system. And in a separate order, a $16 swinging wall mount for the monitor so I can mount it well above the spindle end of it, on a stick of now rusty 1.5" square tubing. And I'll have to jury rig a small router to imitate a hub too, so this will take the rest of the day unless I table this till I can monitor it direct. I need earlier in the day mail deliveries, this 15:30ish sucks. I think I'll table it and go see what I am to get for dinner. Thanks everybody. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
