Mesa 7i76e Plasma bit file
20 Jan 2021 12:51 #195986
by rodw
Mesa 7i76e Plasma bit file was created by rodw
Is this the right bit file and command to enable multiple encoders for THCAD's?
I downloaded the bit file tonight from the Mesa product page
It seemed to write the file ok and I power cycled the board but I only see 1 encoder.
Not sure if its related or not but I don't see my 7i73 any more either
Using master branch compiled from source as RIP
mesaflash --device 7i76e --addr 10.10.10.10 --write ./7i76e_7i76x1_Dpl.bitI downloaded the bit file tonight from the Mesa product page
It seemed to write the file ok and I power cycled the board but I only see 1 encoder.
Not sure if its related or not but I don't see my 7i73 any more either
Using master branch compiled from source as RIP
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20 Jan 2021 14:47 #195996
by PCW
Replied by PCW on topic Mesa 7i76e Plasma bit file
How many encoders are enabled in your hal file?
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20 Jan 2021 20:35 #196016
by rodw
Replied by rodw on topic Mesa 7i76e Plasma bit file
Thanks Peter, of course that was it.
Still missing my 7i73 not sure if I did something else silly or not
Still missing my 7i73 not sure if I did something else silly or not
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21 Jan 2021 01:42 #196047
by PCW
Replied by PCW on topic Mesa 7i76e Plasma bit file
The 7I76e plasma config should be identical SSerial port-wise
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22 Apr 2021 16:57 #206812
by txtrone
I just flashed the same bit file that Rod is posting about, received confirmation, restarted the 7i76e, and now I receive this error. Do I need to change the number of encoders in my machine.hal file from '1' to '2'? thx
Replied by txtrone on topic Mesa 7i76e Plasma bit file
How many encoders are enabled in your hal file?
I just flashed the same bit file that Rod is posting about, received confirmation, restarted the 7i76e, and now I receive this error. Do I need to change the number of encoders in my machine.hal file from '1' to '2'? thx
twopass: Error in file ./mark_i_connections.hal:
setting parameter 'hm2_7i76e.0.encoder.02.scale' to '-1'
parameter or pin 'hm2_7i76e.0.encoder.02.scale' not foundPlease Log in or Create an account to join the conversation.
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22 Apr 2021 17:14 #206815
by tommylight
Replied by tommylight on topic Mesa 7i76e Plasma bit file
If there is only one encoder loaded in the loadrt line of the hal file, the encoder number will be 0, you have it as 2.
So
hm2_7i76e.0.encoder.02.scale
should be
hm2_7i76e.0.encoder.00.scale
same for the two other lines.
So
hm2_7i76e.0.encoder.02.scale
should be
hm2_7i76e.0.encoder.00.scale
same for the two other lines.
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22 Apr 2021 17:26 #206818
by txtrone
I was trying to follow these directions. My THCAD 5 is connected to EncB (per the drawing) and I installed the updated bit file (per the directions) ... not sure where I went wrong. I searched around and came upon this post where it appears Rod is having the same, or a very similiar, issue... though it is hard to tell in the context of this post.
7.3. Hypersensing with a MESA THCAD-5
Replied by txtrone on topic Mesa 7i76e Plasma bit file
If there is only one encoder loaded in the loadrt line of the hal file, the encoder number will be 0, you have it as 2.
So
hm2_7i76e.0.encoder.02.scale
should be
hm2_7i76e.0.encoder.00.scale
same for the two other lines.
I was trying to follow these directions. My THCAD 5 is connected to EncB (per the drawing) and I installed the updated bit file (per the directions) ... not sure where I went wrong. I searched around and came upon this post where it appears Rod is having the same, or a very similiar, issue... though it is hard to tell in the context of this post.
7.3. Hypersensing with a MESA THCAD-5
We used a 15W Mean Well HDR-15 Ultra Slim DIN Rail Supply 24V DIN rail based isolated power supply.. This is a double insulated Isolation Class II device that will withstand any arc voltage that might be applied to the terminals.
Example HAL Code for Hypersensing
The following HAL code can be pasted into your plasmac_connections.hal to enable Ohmic sensing on Encoder 2 of a 7i76e. Install the correct bit file and connect the THCAD to IDX+ and IDX-. Be sure to change the calibration settings to agree with your THCAD-5.
# --- Load the Component ---
loadrt ohmic names=ohmicsense
addf ohmicsense servo-thread
# --- 7i76e ENCODER 2 SETUP FOR OHMIC SENSING---
setp hm2_7i76e.0.encoder.02.scale -1
setp hm2_7i76e.0.encoder.02.counter-mode 1
# --- Configure the component ---
setp ohmicsense.thcad-0-volt-freq 140200
setp ohmicsense.thcad-max-volt-freq 988300
setp ohmicsense.thcad-divide 32
setp ohmicsense.thcad-fullscale 5
setp ohmicsense.volt-divider 4.9
setp ohmicsense.ohmic-threshold 22.0
setp ohmicsense.ohmic-low 1.0
net ohmic-vel ohmicsense.velocity-in <= hm2_7i76e.0.encoder.02.velocity
# --- Replace Plasmac’s Ohmic sensing signal ---
unlinkp debounce.0.2.in
net ohmic-true ohmicsense.ohmic-on => debounce.0.2.in
net plasmac:ohmic-enable => ohmicsense.is-probingPlease Log in or Create an account to join the conversation.
22 Apr 2021 17:41 #206819
by PCW
Replied by PCW on topic Mesa 7i76e Plasma bit file
The three encoders on the 7I76E (and 7I96) plasma configurations are connected:
A Encoder 00
B Encoder 01
IDX Encoder 02
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22 Apr 2021 18:10 #206822
by txtrone
Thank you sir! That was confusing me as well, the directions call for connection of the THCAD to B, but the HAL code was using IDX.
Do I need to change this line in my machine.hal file to encoders=2 (or 3)?
Replied by txtrone on topic Mesa 7i76e Plasma bit file
The three encoders on the 7I76E (and 7I96) plasma configurations are connected:
A Encoder 00 B Encoder 01 IDX Encoder 02
Thank you sir! That was confusing me as well, the directions call for connection of the THCAD to B, but the HAL code was using IDX.
Do I need to change this line in my machine.hal file to encoders=2 (or 3)?
loadrt hm2_eth board_ip="10.10.10.10" config=" num_encoders=1 num_pwmgens=0 num_stepgens=4 sserial_port_0=00xxxx"Please Log in or Create an account to join the conversation.
22 Apr 2021 18:20 #206825
by PCW
Replied by PCW on topic Mesa 7i76e Plasma bit file
I would set num_encoders=2 and use the "B" encoder input (encoder 01)
for the Ohmic sensing
for the Ohmic sensing
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