Mesa 5i25 + 7i75 +7i77 firmware
04 Mar 2015 20:08 #56461
by jtc
Mesa 5i25 + 7i75 +7i77 firmware was created by jtc
Hi. its any firmware that I can use mesa 5i25 connected to 7i77 (on P3) and 7i75 (connected on P2)?
I search on www.mesanet.com/software/parallel/5i25.zip but didn't find it...
I suppose that can use the "GPIO" names to control the 7i75 board, but have the pins names of the board will be extremely useful.
Thanks,
João
I search on www.mesanet.com/software/parallel/5i25.zip but didn't find it...
I suppose that can use the "GPIO" names to control the 7i75 board, but have the pins names of the board will be extremely useful.
Thanks,
João
Please Log in or Create an account to join the conversation.
05 Mar 2015 00:26 #56469
by PCW
Replied by PCW on topic Mesa 5i25 + 7i75 +7i77 firmware
Any firmware with 7I77 on P3 will work (P2 will be GPIO 17..33)
Please Log in or Create an account to join the conversation.
05 Mar 2015 01:11 - 05 Mar 2015 01:11 #56472
by jtc
Replied by jtc on topic Mesa 5i25 + 7i75 +7i77 firmware
Ok, thank you.
Last edit: 05 Mar 2015 01:11 by jtc.
Please Log in or Create an account to join the conversation.
06 Mar 2015 23:39 - 06 Mar 2015 23:44 #56514
by jtc
Replied by jtc on topic Mesa 5i25 + 7i75 +7i77 firmware
Hi again.
I have a problem now with the 7i75 board.
We are using a software stepgen to generate step/dir signals on output of mesa 7i75 ( mesa 5i25 GPIO). After some time with no improvements on tuninn the motor speed, we found that the step output from the board was much more slow that it should be. The period is about 2ms what makes sense in our case the servo thread is 1000000ns
I tried to lower this value, and it makes improvements, but at some point begin to have latency issues and still haven't the desired performance.
I try create make the base thread floating point so can run hm2_5i25.0.write and hm2_5i25.0.read faster, but can' find the correct sintax to make it floating point (with fp=1).
So, I'm wrong about something? I expected that the 5i25 I/O was much faster then a parallel port.
I have a problem now with the 7i75 board.
We are using a software stepgen to generate step/dir signals on output of mesa 7i75 ( mesa 5i25 GPIO). After some time with no improvements on tuninn the motor speed, we found that the step output from the board was much more slow that it should be. The period is about 2ms what makes sense in our case the servo thread is 1000000ns
I tried to lower this value, and it makes improvements, but at some point begin to have latency issues and still haven't the desired performance.
I try create make the base thread floating point so can run hm2_5i25.0.write and hm2_5i25.0.read faster, but can' find the correct sintax to make it floating point (with fp=1).
So, I'm wrong about something? I expected that the 5i25 I/O was much faster then a parallel port.
Last edit: 06 Mar 2015 23:44 by jtc.
Please Log in or Create an account to join the conversation.
07 Mar 2015 00:13 #56515
by PCW
Replied by PCW on topic Mesa 5i25 + 7i75 +7i77 firmware
If you want to control step/dir drives from a 5i25, you should use hardware step generation
For example if you use a 7i77_7i76 configuration, you will have 5 step/dir pairs available on the 7I75
all of which are capable of 8 MHz step rates
For example if you use a 7i77_7i76 configuration, you will have 5 step/dir pairs available on the 7I75
all of which are capable of 8 MHz step rates
Please Log in or Create an account to join the conversation.
Moderators: cmorley
Time to create page: 0.118 seconds