Mesa FAQ

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17 Dec 2009 14:05 - 13 May 2012 11:28 #1325 by BigJohnT
My I/O doesn't show up on my 5i25/7i*7
Field power must be on for the I/O to work and the pins to show up.

Which driver should I use?
The one that matches your hardware. See the Integrators Manual for more info.

Where are the firmware libraries, I get an error saying there not found?
You probably don't have the firmwares installed. Use synaptic package manager to install 'emc2-firmware'. See the Integrators Manual for more info.

How are pins numbered in 50 pin cable for Mesa cards?
On the flat cable the wires are numbered 1,2,3,4,5 etc with the red wire being pin 1

on a 50 pin header the pins are numbered like this: (top view)

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

The pin one end of the connector is marked with a white square or "PIN 1" text on our cards. Also if you look at the back of a card, pin one has a square pad.

Peter provided this list of compatible cards from Mesa some of which only have support in 2.5 or master.

50 pin I/O FPGA cards:

PCI 5I20, 5I22, 5I23, 6i68+3x20

USB/PARALLEL 7I43, 7I61

50 pin daughter cards/motor drives compatible with 50 pin FPGA cards:

7I25,7I27,7I29,7I30,7I31,7I32,7I33,7I34,7I37,7I39,7I40,7I42,7I44,7I46,7I47,7I48,7I49,7I52,7I65

25 pin I/O PGFA cards
PCI 5I25

25 pin I/O daughter cards compatible with 5I25:

7I74,7I75,7I76,7I77,7I78

Remote serial daughter cards/drives

7I64,7I66,7I69,7I70,7I71,7I73, 8I20

50 pin RS-422 interface daughter cards needed between FPGA card and remote serial cards

7I34 (8 ch)
7I44 (8 ch)
7I47 (12 ch but awkward SSERIAL wiring as its pined out for encoders)
7I52 (6 ch)

25 pin RS-422 daughter cards needed between FPGA card and remote SSERIAL device

7I74 (8 ch)
7I76 (1 ch)
7I77 (1 ch)
7I78 (1 ch)

For those who like rolling your own config these are some basic starter configs.
5i25 + 7i77 Basic Config

File Attachment:

File Name: 7i77.zip
File Size:2 KB
Last Edit: 13 May 2012 11:28 by BigJohnT.
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