Fitting an encoder on a Tormach 1100

Ok update The 7i85s board has arrived and flashed with freeby.mesanet.com/5i25_t2_7i85s.bit.

I have stopped PP from re flashing successfully.

I have the 5i25 in a spare PC using P2 (26 pin header) to connect to the 7i85s jumper-ed for PC power ( there is one led lit on the board)

Should I now see the encoder pins on the 7i85s or not. what should they look like?

andypugh wrote:

They will show up as belonging to the 5i25.

If you start LinuxCNC from the command line you should get a listing of the physical pin locations.

And you should see the associated output pins in HAL.

Ok It appear to have them:-

hm2/hm2_5i25.0: IO Pin 010 (P3-07): StepGen #2, pin Step (Output)
hm2/hm2_5i25.0: IO Pin 011 (P3-08): StepGen #3, pin Direction (Output)
hm2/hm2_5i25.0: IO Pin 012 (P3-09): StepGen #3, pin Step (Output)
hm2/hm2_5i25.0: IO Pin 013 (P3-10): IOPort
hm2/hm2_5i25.0: IO Pin 014 (P3-11): IOPort
hm2/hm2_5i25.0: IO Pin 015 (P3-12): IOPort
hm2/hm2_5i25.0: IO Pin 016 (P3-13): IOPort
hm2/hm2_5i25.0: IO Pin 017 (P2-01): IOPort
hm2/hm2_5i25.0: IO Pin 018 (P2-14): IOPort
hm2/hm2_5i25.0: IO Pin 019 (P2-02): IOPort
hm2/hm2_5i25.0: IO Pin 020 (P2-15): IOPort
hm2/hm2_5i25.0: IO Pin 021 (P2-03): IOPort
hm2/hm2_5i25.0: IO Pin 022 (P2-16): IOPort
hm2/hm2_5i25.0: IO Pin 023 (P2-04): IOPort
hm2/hm2_5i25.0: IO Pin 024 (P2-17): IOPort
hm2/hm2_5i25.0: IO Pin 025 (P2-05): IOPort
hm2/hm2_5i25.0: IO Pin 026 (P2-06): IOPort
hm2/hm2_5i25.0: IO Pin 027 (P2-07): IOPort
hm2/hm2_5i25.0: IO Pin 028 (P2-08): IOPort
hm2/hm2_5i25.0: IO Pin 029 (P2-09): IOPort
hm2/hm2_5i25.0: IO Pin 030 (P2-10): IOPort
hm2/hm2_5i25.0: IO Pin 031 (P2-11): IOPort
hm2/hm2_5i25.0: IO Pin 032 (P2-12): IOPort
hm2/hm2_5i25.0: IO Pin 033 (P2-13): IOPort

Could you give me some pointers of what I need to do to be able to use them ie use a custom hal file so as not to interfere with PP
Do I have to tell hal how many encoders etc. I am a bit lost now. Tnx.

andypugh wrote:

That looks like either the wrong bitfile or your "num_encoders" in the "loadrt hm2_pci" needs to be changed.

The P2 figures above seem to be same as the pins number in the 7i85s man.

The bit file I used was made by Peter to be able to use the Tormach file and have encoders on the P2 of the 5i25 with the 7i85s.
I haven't changed any hal loadrt stuff yet.

I am not sure what to change in the hal file to show the encoders on the 7i85s

@Andy
This is a snippet from the ini and hal file. I see that encoders=0 But I need the encoders to be on the 5i25 P2 only. How do I achieve this.

#### this is from the tormach_mill_base.ini

[HOSTMOT2]
DRIVER=hm2_pci
BOARD=5i25
DRIVER_PARAMS="config= num_encoders=0 num_pwmgens=1 num_3pwmgens=0 num_stepgens=5 "
BITFILE0=mesa/tormach_mill3.bit
DPLL_TIMER_NUMBER = 1
DPLL_TIMER_US= -100

[HAL]
HALUI = halui
HALFILE = tormach_mill_mesa.hal
POSTGUI_SHUTTLEXPRESS_HALFILE = millshuttlexpress.hal
POSTGUI_HALFILE = postgui_tormach_mill.hal

####This is from the tormach_mill_mesa.hal #####

loadrt trivkins
loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[TRAJ]AXES num_dio=64 num_aio=64
loadrt hostmot2
loadrt [HOSTMOT2]DRIVER [HOSTMOT2]DRIVER_PARAMS
loadrt estop_latch
loadrt toggle count=1
loadrt not names=prog-not-idle,a

But as a first step enable the encoders and see what you get.

Thanks for the rapid response. Yes they are there but is it possible for them to just be on the P2 as I have a feeling that they will interfere with other things on P3.

edit: for info I don't have the main Tormach BOB connected at this time
further edit: changing encoder=1 I get one encoder on P2 encoder =2 I get two but encoder 3 or 4 I still get 2
Below is deleting out completely the encoder=0 string
2/hm2_5i25.0: IO Pin 012 (P3-09): StepGen #3, pin Step (Output)
hm2/hm2_5i25.0: IO Pin 013 (P3-10): Muxed Encoder #2, pin Muxed Index (Input)
hm2/hm2_5i25.0: IO Pin 014 (P3-11): Muxed Encoder #2, pin Muxed A (Input)
hm2/hm2_5i25.0: IO Pin 015 (P3-12): Muxed Encoder #2, pin Muxed B (Input)
hm2/hm2_5i25.0: IO Pin 016 (P3-13): IOPort
hm2/hm2_5i25.0: IO Pin 017 (P2-01): IOPort
hm2/hm2_5i25.0: IO Pin 018 (P2-14): IOPort
hm2/hm2_5i25.0: IO Pin 019 (P2-02): IOPort
hm2/hm2_5i25.0: IO Pin 020 (P2-15): IOPort
hm2/hm2_5i25.0: IO Pin 021 (P2-03): IOPort
hm2/hm2_5i25.0: IO Pin 022 (P2-16): IOPort
hm2/hm2_5i25.0: IO Pin 023 (P2-04): IOPort
hm2/hm2_5i25.0: IO Pin 024 (P2-17): IOPort
hm2/hm2_5i25.0: IO Pin 025 (P2-05): IOPort
hm2/hm2_5i25.0: IO Pin 026 (P2-06): IOPort
hm2/hm2_5i25.0: IO Pin 027 (P2-07): Muxed Encoder Select #0, pin Mux Select 0 (Output)
hm2/hm2_5i25.0: IO Pin 028 (P2-08): Muxed Encoder #0, pin Muxed A (Input)
hm2/hm2_5i25.0: IO Pin 029 (P2-09): Muxed Encoder #0, pin Muxed B (Input)
hm2/hm2_5i25.0: IO Pin 030 (P2-10): Muxed Encoder #0, pin Muxed Index (Input)
hm2/hm2_5i25.0: IO Pin 031 (P2-11): Muxed Encoder #1, pin Muxed A (Input)
hm2/hm2_5i25.0: IO Pin 032 (P2-12): Muxed Encoder #1, pin Muxed B (Input)
hm2/hm2_5i25.0: IO Pin 033 (P2-13): Muxed Encoder #1, pin Muxed Index (Input)