MESA 7I76 / 7i76e Model
19 Jun 2018 05:56 - 19 Jun 2018 06:06 #112565
by Askjerry
Replied by Askjerry on topic MESA 7I76D
I have been doing many CNC machines... all using a parallel port to date. I just got the 6i25 / 7i76D Plug and Go combo... and i'm attempting to figure it all out so that I can present a detailed instruction video set on you YouTube channel.
I came up with the attached spreadsheet of how I believe the pins should be connected... figuring that since it was in a spreadsheet format, I could add a column to incorporate the actual assignment such as "Mist Coolant" or "Vacuum Table", etc.
Anyway... I'm looking at the way the pins are laid out... and then I run the MESAFLASH utility and I get the following...
And I'm just trying to wrap my head around how this printout aligns with the pins that I have outlined in the spreadsheet.
It looks like PIN-1 of TB-2 should be a step generator output... but my spreadsheet and the drawing at the author's page show PIN-1 as GROUND.
RE: d2t1xqejof9utc.cloudfront.net/screenshot...674c0a5f46/large.png (From Author)
RE: Attached spreadsheet (From me.)
I'm trying to determine how to puzzle them together before I just start connecting stuff. I'm also measuring for voltage between PIN-1 and PIN-6 which should be GND and 5VDC respectively... but getting nothing out. So it looks like the default jumper settings are NOT the ones for having the 6i25 power the board.
Once I get it figured out... I'm sure I'll ramp up quickly and be able to teach it well... but any assistance is greatly appreciated.
Thanks,
Jerry
I came up with the attached spreadsheet of how I believe the pins should be connected... figuring that since it was in a spreadsheet format, I could add a column to incorporate the actual assignment such as "Mist Coolant" or "Vacuum Table", etc.
Anyway... I'm looking at the way the pins are laid out... and then I run the MESAFLASH utility and I get the following...
Configuration pin-out:
IO Connections for P3
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 0 IOPort StepGen 0 Dir/Table2 (Out)
14 1 IOPort StepGen 0 Step/Table1 (Out)
2 2 IOPort StepGen 1 Dir/Table2 (Out)
15 3 IOPort StepGen 1 Step/Table1 (Out)
3 4 IOPort StepGen 2 Dir/Table2 (Out)
16 5 IOPort StepGen 2 Step/Table1 (Out)
4 6 IOPort StepGen 3 Dir/Table2 (Out)
17 7 IOPort StepGen 3 Step/Table1 (Out)
5 8 IOPort StepGen 4 Dir/Table2 (Out)
6 9 IOPort StepGen 4 Step/Table1 (Out)
7 10 IOPort SSerial 0 TXData1 (Out)
8 11 IOPort SSerial 0 RXData1 (In)
9 12 IOPort SSerial 0 TXData2 (Out)
10 13 IOPort SSerial 0 RXData2 (In)
11 14 IOPort QCount 0 Quad-IDX (In)
12 15 IOPort QCount 0 Quad-B (In)
13 16 IOPort QCount 0 Quad-A (In)
IO Connections for P2
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 17 IOPort StepGen 5 Dir/Table2 (Out)
14 18 IOPort StepGen 5 Step/Table1 (Out)
2 19 IOPort StepGen 6 Dir/Table2 (Out)
15 20 IOPort StepGen 6 Step/Table1 (Out)
3 21 IOPort StepGen 7 Dir/Table2 (Out)
16 22 IOPort StepGen 7 Step/Table1 (Out)
4 23 IOPort StepGen 8 Dir/Table2 (Out)
17 24 IOPort StepGen 8 Step/Table1 (Out)
5 25 IOPort StepGen 9 Dir/Table2 (Out)
6 26 IOPort StepGen 9 Step/Table1 (Out)
7 27 IOPort SSerial 0 TXData3 (Out)
8 28 IOPort SSerial 0 RXData3 (In)
9 29 IOPort SSerial 0 TXData4 (Out)
10 30 IOPort SSerial 0 RXData4 (In)
11 31 IOPort QCount 1 Quad-IDX (In)
12 32 IOPort QCount 1 Quad-B (In)
13 33 IOPort QCount 1 Quad-A (In)And I'm just trying to wrap my head around how this printout aligns with the pins that I have outlined in the spreadsheet.
It looks like PIN-1 of TB-2 should be a step generator output... but my spreadsheet and the drawing at the author's page show PIN-1 as GROUND.
RE: d2t1xqejof9utc.cloudfront.net/screenshot...674c0a5f46/large.png (From Author)
RE: Attached spreadsheet (From me.)
I'm trying to determine how to puzzle them together before I just start connecting stuff. I'm also measuring for voltage between PIN-1 and PIN-6 which should be GND and 5VDC respectively... but getting nothing out. So it looks like the default jumper settings are NOT the ones for having the 6i25 power the board.
Once I get it figured out... I'm sure I'll ramp up quickly and be able to teach it well... but any assistance is greatly appreciated.
Thanks,
Jerry
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