Pimping the mini-lathe
- tommylight
-
- Away
- Moderator
-
Less
More
- Posts: 19190
- Thank you received: 6433
26 Jul 2020 10:20 #175881
by tommylight
Replied by tommylight on topic Pimping the mini-lathe
Pin5 only.
Pin 6 is direction and your board does not use that.
Gnd goes from Mesa gnd to pwm board gnd.
Pin 6 is direction and your board does not use that.
Gnd goes from Mesa gnd to pwm board gnd.
The following user(s) said Thank You: RotarySMP
Please Log in or Create an account to join the conversation.
26 Jul 2020 10:50 - 26 Jul 2020 11:13 #175882
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
Thanks Tommy.
The 7i96 is connected with ethernet, flashed with 7i96d_1pwm and communicating normally with Linux. P3 is powered with 5V. With LinuxCNC running, I used HALShow to:and
According to the manual TB1-1 would normally be a ground. but according to MESA Flash readhmid, it is now the Step signal for Stepgen 0. Where do you find a GND once you use a non-standard bitfile?
Using my Osci, I cant see a 50% square wave (or any other signal) between TB1-1 and TB1-5
Also is it normal that the Mesaflash readhmid shows nothing on TB2 or TB3? Shouldn't all the generic I/O pins still show up? The read out from Mesaflash readhmid is very different to the one you posted for 7i96d_1pwm.
***edit***
I also just noticed that this readhmid readout shows only single ended connections for the encoder, whereas there should be pairs for differential connection.
The 7i96 is connected with ethernet, flashed with 7i96d_1pwm and communicating normally with Linux. P3 is powered with 5V. With LinuxCNC running, I used HALShow to:
setp hm2_7i96.0.pwmgen.00.enable truesetp hm2_7i96.0.pwmgen.00.value 50According to the manual TB1-1 would normally be a ground. but according to MESA Flash readhmid, it is now the Step signal for Stepgen 0. Where do you find a GND once you use a non-standard bitfile?
Using my Osci, I cant see a 50% square wave (or any other signal) between TB1-1 and TB1-5
Also is it normal that the Mesaflash readhmid shows nothing on TB2 or TB3? Shouldn't all the generic I/O pins still show up? The read out from Mesaflash readhmid is very different to the one you posted for 7i96d_1pwm.
***edit***
I also just noticed that this readhmid readout shows only single ended connections for the encoder, whereas there should be pairs for differential connection.
Last edit: 26 Jul 2020 11:13 by RotarySMP.
Please Log in or Create an account to join the conversation.
26 Jul 2020 10:57 - 26 Jul 2020 11:36 #175883
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
The ICSTATION PWM-analog board I am using only accepts PWM signals between 1kHz and 3kHz. What is the PWM frequency which the 7i96 ouputs?
+++edit+++
Found this:
forum.linuxcnc.org/39-pncconf/38723-pncc...tting-up-pwm-on-7i96
+++edit+++
Found this:
forum.linuxcnc.org/39-pncconf/38723-pncc...tting-up-pwm-on-7i96
Last edit: 26 Jul 2020 11:36 by RotarySMP.
Please Log in or Create an account to join the conversation.
- tommylight
-
- Away
- Moderator
-
Less
More
- Posts: 19190
- Thank you received: 6433
26 Jul 2020 11:43 - 26 Jul 2020 11:44 #175888
by tommylight
Replied by tommylight on topic Pimping the mini-lathe
Your Mesa pinout shows "transformer" and that is something i have not seen before !
From what i gather, the PWM output should be on the STEP4 header, so there is the GND and the PWM.
So TB2, pin 1 GND and pin 3 PWM+ should go to the pwm board.
The frequency can be set in hal.
From what i gather, the PWM output should be on the STEP4 header, so there is the GND and the PWM.
So TB2, pin 1 GND and pin 3 PWM+ should go to the pwm board.
The frequency can be set in hal.
Last edit: 26 Jul 2020 11:44 by tommylight. Reason: More info
The following user(s) said Thank You: RotarySMP
Please Log in or Create an account to join the conversation.
26 Jul 2020 11:49 - 26 Jul 2020 11:51 #175889
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I flashed the 7i96_1pwm bit file last week, and from the video I took it looked like I did the right one, but the result is very different than sample PCW posted here last week.
forum.linuxcnc.org/26-turning/38280-pimp...the?start=140#175545
I think I'll flash it again, and see if it returns a different result.
Mark
forum.linuxcnc.org/26-turning/38280-pimp...the?start=140#175545
I think I'll flash it again, and see if it returns a different result.
Mark
Last edit: 26 Jul 2020 11:51 by RotarySMP.
Please Log in or Create an account to join the conversation.
26 Jul 2020 13:42 #175896
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I reflashed it, but no change...
This is from the 7i96.zip file on the MESAnet 7i96 webpage. Could it be that there is a different version of this bitfile I should be using?
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$ dir
7i96_5abob_d.bit 7i96_6enc_d.bit 7i96_7i77d.bit 7i96_7i85sd.bit 7i96d_1pwm.pin 7i96_fallback.bit 7i96_inmd.bit 7i96_pktd.bit
7i96_5abob_d.pin 7i96_6enc_d.pin 7i96_7i78d.bit 7i96_7i85sinmd.bit 7i96d.bit 7i96_fallback.pin 7i96_inmd_dp.bit 7i96_pktd.pin
7i96_5abob_inmd.bit 7i96_7i76d.bit 7i96_7i78d.pin 7i96_7i89d.bit 7i96d.pin 7i96_g540dpl.bit 7i96_inmd_dp.pin source
7i96_5abob_inmd.pin 7i96_7i76d.pin 7i96_7i85d.bit 7i96d_1pwm.bit 7i96dpl.bit 7i96_inm_7i85sd.bit 7i96_inmd.pin
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$ mesaflash --device 7i96 --addr 10.10.10.10 --write 7i96d_1pwm.bit
Checking file... OK
File type: BIT file
Boot sector OK
EEPROM sectors to write: 6, max sectors in area: 16
Erasing EEPROM sectors starting from 0x100000...
|EEEEEE
Programming EEPROM sectors starting from 0x100000...
|WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
Board configuration updated successfully.
Checking file... OK
File type: BIT file
Boot sector OK
Verifying EEPROM sectors starting from 0x100000...
|VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
Board configuration verified successfully.
You must power cycle the hardware or use the --reload command to load a new firmware.
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$ mesaflash --device 7i96 --addr 10.10.10.10 --reload
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$ mesaflash --device 7i96 --addr 10.10.10.10 --readhmid
Configuration Name: HOSTMOT2
General configuration information:
BoardName : MESA7I96
FPGA Size: 9 KGates
FPGA Pins: 144
Number of IO Ports: 3
Width of one I/O port: 17
Clock Low frequency: 100.0000 MHz
Clock High frequency: 200.0000 MHz
IDROM Type: 3
Instance Stride 0: 4
Instance Stride 1: 64
Register Stride 0: 256
Register Stride 1: 256
Modules in configuration:
Module: DPLL
There are 1 of DPLL in configuration
Version: 0
Registers: 7
BaseAddress: 7000
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: WatchDog
There are 1 of WatchDog in configuration
Version: 0
Registers: 3
BaseAddress: 0C00
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: IOPort
There are 3 of IOPort in configuration
Version: 0
Registers: 5
BaseAddress: 1000
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: PWM
There are 1 of PWM in configuration
Version: 0
Registers: 5
BaseAddress: 4100
ClockFrequency: 200.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: StepGen
There are 4 of StepGen in configuration
Version: 2
Registers: 10
BaseAddress: 2000
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: QCount
There are 1 of QCount in configuration
Version: 2
Registers: 5
BaseAddress: 3000
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: SSerial
There are 1 of SSerial in configuration
Version: 0
Registers: 6
BaseAddress: 5B00
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 64 bytes
Module: Transformer
There are 1 of Transformer in configuration
Version: 0
Registers: 2
BaseAddress: 7D00
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Module: LED
There are 1 of LED in configuration
Version: 0
Registers: 1
BaseAddress: 0200
ClockFrequency: 100.000 MHz
Register Stride: 256 bytes
Instance Stride: 4 bytes
Configuration pin-out:
IO Connections for P1
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 0 IOPort None
14 1 IOPort None
2 2 IOPort None
15 3 IOPort None
3 4 IOPort None
16 5 IOPort None
4 6 IOPort None
17 7 IOPort None
5 8 IOPort None
6 9 IOPort None
7 10 IOPort None
8 11 IOPort Transformer 0 Drive (Out)
9 12 IOPort Transformer 0 Ref (Out)
10 13 IOPort Transformer 0 Null3 (Out)
11 14 IOPort Transformer 0 Null4 (Out)
12 15 IOPort Transformer 0 Null5 (Out)
13 16 IOPort Transformer 0 Null6 (Out)
IO Connections for TB1
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 17 IOPort StepGen 0 Step/Table1 (Out)
14 18 IOPort StepGen 0 Dir/Table2 (Out)
2 19 IOPort StepGen 1 Step/Table1 (Out)
15 20 IOPort StepGen 1 Dir/Table2 (Out)
3 21 IOPort StepGen 2 Step/Table1 (Out)
16 22 IOPort StepGen 2 Dir/Table2 (Out)
4 23 IOPort StepGen 3 Step/Table1 (Out)
17 24 IOPort StepGen 3 Dir/Table2 (Out)
5 25 IOPort PWM 0 PWM (Out)
6 26 IOPort PWM 0 Dir (Out)
7 27 IOPort QCount 0 Quad-A (In)
8 28 IOPort QCount 0 Quad-B (In)
9 29 IOPort QCount 0 Quad-IDX (In)
10 30 IOPort SSerial 0 RXData1 (In)
11 31 IOPort SSerial 0 TXData1 (Out)
12 32 IOPort SSerial 0 TXEn1 (Out)
Segmentation fault (core dumped)
minilathe@minilathe:~/Downloads/7i96/configs/hostmot2$ This is from the 7i96.zip file on the MESAnet 7i96 webpage. Could it be that there is a different version of this bitfile I should be using?
Please Log in or Create an account to join the conversation.
26 Jul 2020 13:49 - 26 Jul 2020 13:50 #175897
by PCW
TB2 pins 2 and 3 are the PWM outputs (- and + respectively)
You need to update mesaflash to get the TB numbers:
github.com/LinuxCNC/mesaflash
Replied by PCW on topic Pimping the mini-lathe
TB2 2,3 25 IOPort PWM 0 PWM (Out)
TB2 4,5 26 IOPort PWM 0 Dir (Out)
TB2 7,8 27 IOPort QCount 0 Quad-A (In)
TB2 10,11 28 IOPort QCount 0 Quad-B (In)
TB2 13,14 29 IOPort QCount 0 Quad-IDX (In)TB2 pins 2 and 3 are the PWM outputs (- and + respectively)
You need to update mesaflash to get the TB numbers:
github.com/LinuxCNC/mesaflash
Last edit: 26 Jul 2020 13:50 by PCW.
The following user(s) said Thank You: RotarySMP
Please Log in or Create an account to join the conversation.
26 Jul 2020 13:59 #175899
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I only just installed mesaflash using the instructions for that github link. What do I need to do differently to get the most current version?
Is there any documentation on the PWM setup? I just found:
Basic PWM setup:
setp hm2_7i96.0.pwmgen.pwm_frequency 10000
setp hm2_7i96.0.pwmgen.00.scale 24000 # full scale is 24000 RPM
setp hm2_7i96.0.pwmgen.00.output-type 1 # standard PWM and direction
And was wondering what the outut type is for only PWM in only one direction? or do I just use this and ignore the direction part?
Is there any documentation on the PWM setup? I just found:
Basic PWM setup:
setp hm2_7i96.0.pwmgen.pwm_frequency 10000
setp hm2_7i96.0.pwmgen.00.scale 24000 # full scale is 24000 RPM
setp hm2_7i96.0.pwmgen.00.output-type 1 # standard PWM and direction
And was wondering what the outut type is for only PWM in only one direction? or do I just use this and ignore the direction part?
Please Log in or Create an account to join the conversation.
26 Jul 2020 14:08 - 26 Jul 2020 14:17 #175900
by PCW
Replied by PCW on topic Pimping the mini-lathe
It sounds like you did not install the latest mesaflash (so you are using the old one)
after building mesaflash, did you run "sudo make install" ?
git clone github.com/LinuxCNC/mesaflash.git
cd mesaflash
make
sudo make install
And yes standard PWM (mode 1) is correct
after building mesaflash, did you run "sudo make install" ?
git clone github.com/LinuxCNC/mesaflash.git
cd mesaflash
make
sudo make install
And yes standard PWM (mode 1) is correct
Last edit: 26 Jul 2020 14:17 by PCW.
Please Log in or Create an account to join the conversation.
26 Jul 2020 14:23 #175901
by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I followed the lines of the git instructions one by one, including make including the four list. When I repeat them
minilathe@minilathe:~$ git clone github.com/LinuxCNC/mesaflash.git
fatal: destination path 'mesaflash' already exists and is not an empty directory.
minilathe@minilathe:~$ cd mesaflash
minilathe@minilathe:~/mesaflash$ make
make: Nothing to be done for 'all'.
minilathe@minilathe:~/mesaflash$ sudo make install
[sudo] password for minilathe:
install -p -D --mode=0755 --owner root --group root mesaflash /bin/mesaflash
install -p -D --mode=0644 --owner root --group root mesaflash.1 /share/man/man1/mesaflash.1
minilathe@minilathe:~/mesaflash$
minilathe@minilathe:~$ git clone github.com/LinuxCNC/mesaflash.git
fatal: destination path 'mesaflash' already exists and is not an empty directory.
minilathe@minilathe:~$ cd mesaflash
minilathe@minilathe:~/mesaflash$ make
make: Nothing to be done for 'all'.
minilathe@minilathe:~/mesaflash$ sudo make install
[sudo] password for minilathe:
install -p -D --mode=0755 --owner root --group root mesaflash /bin/mesaflash
install -p -D --mode=0644 --owner root --group root mesaflash.1 /share/man/man1/mesaflash.1
minilathe@minilathe:~/mesaflash$
Please Log in or Create an account to join the conversation.
Moderators: piasdom
Time to create page: 0.114 seconds