What bit file for a 7i76e + 7i85s

Is it possible to move the step/dir 0 from TB2 7i76e > TB2 7i85s diff out 0

I have the encoder for the servo on the 7i85s

Can 7i85s be used for step/dir . If so I am struggling to see which TB2 pins to connect to 9-16

I have enclosed the show all below

The board is flashed witth 7i76e_7i76x1_7i85sx2d.bit

The first 7I85S has stepgens 5..8 and encoders 0..3:

IO Connections for P1
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir

1 17 IOPort SSerial 0 RXData2 (In)
14 18 IOPort SSerial 0 TXData2 (Out)
2 19 IOPort StepGen 8 Step/Table1 (Out)
15 20 IOPort StepGen 8 Dir/Table2 (Out)
3 21 IOPort StepGen 7 Step/Table1 (Out)
16 22 IOPort StepGen 7 Dir/Table2 (Out)
4 23 IOPort StepGen 6 Step/Table1 (Out)
17 24 IOPort StepGen 6 Dir/Table2 (Out)
5 25 IOPort StepGen 5 Step/Table1 (Out)
6 26 IOPort StepGen 5 Dir/Table2 (Out)
7 27 IOPort MuxedQCountSel 0 MuxSel0 (Out)
8 28 IOPort MuxedQCount 0 MuxQ-A (In)
9 29 IOPort MuxedQCount 0 MuxQ-B (In)
10 30 IOPort MuxedQCount 0 MuxQ-IDX (In)
11 31 IOPort MuxedQCount 1 MuxQ-A (In)
12 32 IOPort MuxedQCount 1 MuxQ-B (In)
13 33 IOPort MuxedQCount 1 MuxQ-IDX (In)

So if I understand correctly I should used TB2 pins 11-14 for the step/dir

So pin 5 on the DB25 will give me two physical connections on the 7i85s TB2 11-12 for the STEP + & -

:woohoo:

Yes, the Step+, Step- (and Dir+, Dir-) are driven by single FPGA pins
stepgen 5 is on the 7I85S's diff out 0,1m stepgen 6 on diff out 2,3 etc etc

PCW wrote: Yes, the Step+, Step- (and Dir+, Dir-) are driven by single FPGA pins
stepgen 5 is on the 7I85S's diff out 0,1m stepgen 6 on diff out 2,3 etc etc

Thanks for taking the time Peter. I got confused looking for the second pin not realising it was coming from a single pin.

I hope this make clearer for others to follow

Hello!
I want to use 7i76e (REV. C) + 7i85s + 7i85s, but I can't download the archive with the bit files.
Can anybody help me out? (it can be encoder + stepgen for both 7i85s cards)
 

7i76e_7i76x1_7i85sx2d.bit is the proper bit file

All 7I76E firmware is in the 7I76E zip archive:

www.mesanet.com/software/parallel/7i76e.zip

(There is a link to each card specific support zip file in the specification tab
of that card  in the  Mesa webstore)

My Chrome some why don't allow to download... (that is why I have asked, I know it's on the website, just thought it was deleted...)
But tried in Firefox and success...

xenon-alien wrote:

My Chrome some why don't allow to download... (that is why I have asked, I know it's on the website, just thought it was deleted...)
But tried in Firefox and success...

Yes, I noticed Mesa is not using a SSL certificate on some parts of their website. Maybe they have a http:// link on the download....