working on getting stepper signals out of mesa 6i24 board
22 Apr 2020 01:42 #165027
by owhite
working on getting stepper signals out of mesa 6i24 board was created by owhite
Hey people I loaded a custom bitfile into my 6i24 board with stepgens in the config file. I would like to do a test to create a bare bones stepper output on some of the pins. Let's go through some halcmds...
my question is what commands should I run to see look at step and direction using and oscilloscope? The following did not seem to work:
Any suggestions? THANKS!
$ halcmd -kf
loadrt hostmot2
loadrt hm2_pci
loadrt threads name1=card_thread period1=1000000
addf hm2_5i24.0.read card_thread
addf hm2_5i24.0.write card_thread
start
show pin hm2_5i24.0.stepgen.00
Component Pins:
Owner Type Dir Value Name
9 bit IN FALSE hm2_5i24.0.stepgen.00.control-type
9 s32 OUT 0 hm2_5i24.0.stepgen.00.counts
9 float OUT 0 hm2_5i24.0.stepgen.00.dbg_err_at_match
9 float OUT 0 hm2_5i24.0.stepgen.00.dbg_ff_vel
9 float OUT 0 hm2_5i24.0.stepgen.00.dbg_pos_minus_prev_cmd
9 float OUT 0 hm2_5i24.0.stepgen.00.dbg_s_to_match
9 s32 OUT 0 hm2_5i24.0.stepgen.00.dbg_step_rate
9 float OUT 0 hm2_5i24.0.stepgen.00.dbg_vel_error
9 bit IN FALSE hm2_5i24.0.stepgen.00.enable
9 float IN 0 hm2_5i24.0.stepgen.00.position-cmd
9 float OUT 0 hm2_5i24.0.stepgen.00.position-fb
9 float IN 0 hm2_5i24.0.stepgen.00.velocity-cmd
9 float OUT 0 hm2_5i24.0.stepgen.00.velocity-fbmy question is what commands should I run to see look at step and direction using and oscilloscope? The following did not seem to work:
setp hm2_5i24.0.stepgen.00.step_type 0
setp hm2_5i24.0.stepgen.00.velocity-cmd 12.0
setp hm2_5i24.0.stepgen.00.enable true Any suggestions? THANKS!
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22 Apr 2020 01:57 #165028
by PCW
Replied by PCW on topic working on getting stepper signals out of mesa 6i24 board
Try setting the step type to 1
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22 Apr 2020 02:12 #165031
by owhite
Replied by owhite on topic working on getting stepper signals out of mesa 6i24 board
The line is just staying low. Other ideas?
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22 Apr 2020 02:28 #165032
by PCW
Replied by PCW on topic working on getting stepper signals out of mesa 6i24 board
Sorry, not step type but rather control-type
The following user(s) said Thank You: owhite
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22 Apr 2020 02:32 #165033
by owhite
Replied by owhite on topic working on getting stepper signals out of mesa 6i24 board
right again! Thank you.
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