Mesa modbus and pktUart

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3 years 1 month ago #279633 by PCW
Replied by PCW on topic Mesa modbus and pktUart
Unless you cross compiled the mesa_modbus_AS_Driver.so on the X86 system,
it will not run on a ARM system

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3 years 1 month ago #279666 by Donno
Replied by Donno on topic Mesa modbus and pktUart
I downloaded Linuxcnc 2.9pre image for raspberry pi 4B and compiled linuxcnc-dev
Code:
git clone https://github.com/LinuxCNC/linuxcnc.git linuxcnc-dev cd linuxcnc-dev/src sudo apt install automake ./autogen.sh sudo apt-get install libmodbus-dev sudo apt-get install libusb-1.0-0-dev sudo apt-get install yapps2 sudo apt-get install intltool sudo apt-get install libboost sudo apt install devscripts sudo apt install dh-python libudev-dev tcl8.6-dev tk8.6-dev asciidoc dblatex sudo apt install libreadline-gplv2-dev docbook-xsl dvipng ghostscript graphviz sudo apt install groff imagemagick inkscape python-lxml source-highlight sudo apt install texlive-extra-utils texlive-font-utils texlive-fonts-recommended sudo apt install texlive-lang-cyrillic texlive-lang-french texlive-lang-german sudo apt install texlive-lang-polish texlive-lang-spanish texlive-latex-recommended sudo apt install w3c-linkchecker xsltproc python-dev python-tk libxmu-dev sudo apt install libglu1-mesa-dev libgtk2.0-dev intltool libboost-python-dev sudo apt install libmodbus-dev libusb-1.0-0-dev desktop-file-utils yapps2 sudo apt install python-yapps bwidget libtk-img mesa-utils tclx8.4 sudo apt install tcl-tclreadline python-configobj python-gtkglext1 sudo apt install python-xlib gstreamer0.10-plugins-base netcat sudo apt install python-pil python-glade2 python-pil.imagetk sudo apt install python-gst-1.0 w3c-linkchecker libxmu-dev libtirpc-dev sudo apt install gdebi gdebi-core sudo apt install libreadline-dev sudo apt install libeditreadline-dev sudo apt install libxmu-headers sudo apt install libxmu-dev ./configure --with-realtime=uspace make sudo make setuid source ../scripts/rip-environment cd ~/linuxcnc-dev/bin (edit modcompile to use ../src instead of src else it will not find makefile.modinc) ./modcompile mesa_modbus_A5_Driver.mod

I copied driver to another raspberry with linuxcnc2.9pre and copied driver to /usr/lib/linuxcnc/modules/mesa_modbus_A5_Driver.so

I now get the following error in linuxcnc
Code:
Debug file information: Note: Using POSIX non-realtime mesa_modbus_A5_Driver: dlopen: /usr/lib/linuxcnc/modules/mesa_modbus_A5_Driver.so: undefined symbol: hm2_pktuart_setup_rx ./Lathe_7i92T_0.hal:10: waitpid failed /usr/bin/rtapi_app mesa_modbus_A5_Driver ./Lathe_7i92T_0.hal:10: /usr/bin/rtapi_app exited without becoming ready ./Lathe_7i92T_0.hal:10: insmod for mesa_modbus_A5_Driver failed, returned -1 2759 Stopping realtime threads Unloading hal components Note: Using POSIX non-realtime

Any help PCW ?

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3 years 1 month ago #279667 by Donno
Replied by Donno on topic Mesa modbus and pktUart
Driver :
Code:
// Lichuan A5 AC Servo Drive Driver #define MAX_MSG_LEN 16   // may be increased if necessary to max 251 #define DEBUG 1 static const hm2_modbus_chan_descriptor_t channels[] = { /*  {TYPE,     FUNC, ADDR,   COUNT, pin_name} */     {HAL_U32,   3,   0x9C8, 1,     "speed-actual"},     {HAL_U32,   3,   0x9C9, 1,     "speed-instruction"},     {HAL_U32,   3,   0x9CA, 1,     "torque-instruction"},     {HAL_U32,   3,   0x9D4, 1,     "avg-load-rate"},     {HAL_U32,   3,   0x9E0, 1,     "phase-current"},     {HAL_U32,   3,   0x9E2, 1,     "bus-voltage"},     {HAL_U32,   3,   0x9E3, 1,     "tempreture"},     {HAL_U32,   6,   0x4CB, 1,     "set-speed"}, };

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3 years 1 month ago #279668 by PCW
Replied by PCW on topic Mesa modbus and pktUart
What is you loardrt line in your hal file?
Does your firmware have a pktuart?

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3 years 1 month ago #279671 by Donno
Replied by Donno on topic Mesa modbus and pktUart
mesaflash --device 7i92T --addr 192.168.1.121 --readhmid
Code:
donno@linuxcnc:~/Desktop $ mesaflash --device 7i92T --addr 192.168.1.121 --readhmid Configuration Name: HOSTMOT2 General configuration information:   BoardName : MESA7I92   FPGA Size: 20 KGates   FPGA Pins: 256   Number of IO Ports: 2   Width of one I/O port: 17   Clock Low frequency: 100.0000 MHz   Clock High frequency: 175.0000 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 2 of IOPort in configuration   Version: 0   Registers: 5   BaseAddress: 1000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: QCount   There are 2 of QCount in configuration   Version: 2   Registers: 5   BaseAddress: 3000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: StepGen   There are 10 of StepGen in configuration   Version: 2   Registers: 10   BaseAddress: 2000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: PWM   There are 2 of PWM in configuration   Version: 0   Registers: 5   BaseAddress: 4100   ClockFrequency: 175.000 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   Module: PktUARTTX   There are 1 of PktUARTTX in configuration   Version: 0   Registers: 4   BaseAddress: 6100   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: PktUARTRX   There are 1 of PktUARTRX in configuration   Version: 0   Registers: 4   BaseAddress: 6500   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes Configuration pin-out: IO Connections for P2 DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir  1                      0   IOPort       PWM              0        PWM             (Out) 14                      1   IOPort       StepGen          0        Step/Table1     (Out)  2                      2   IOPort       StepGen          0        Dir/Table2      (Out) 15                      3   IOPort       StepGen          1        Step/Table1     (Out)  3                      4   IOPort       StepGen          1        Dir/Table2      (Out) 16                      5   IOPort       None             4                      6   IOPort       None            17                      7   IOPort       None             5                      8   IOPort       None             6                      9   IOPort       QCount           0        Quad-A          (In)  7                     10   IOPort       QCount           0        Quad-B          (In)  8                     11   IOPort       QCount           0        Quad-IDX        (In)  9                     12   IOPort       None            10                     13   IOPort       None            11                     14   IOPort       None            12                     15   IOPort       None            13                     16   IOPort       None            IO Connections for P1 DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir  1                     17   IOPort       PktUARTRX        0        RXData          (In) 14                     18   IOPort       PktUARTTX        0        TXData          (Out)  2                     19   IOPort       PktUARTTX        0        TXEna           (Out) 15                     20   IOPort       None             3                     21   IOPort       None            16                     22   IOPort       None             4                     23   IOPort       None            17                     24   IOPort       None             5                     25   IOPort       None             6                     26   IOPort       None             7                     27   IOPort       None             8                     28   IOPort       None             9                     29   IOPort       None            10                     30   IOPort       None            11                     31   IOPort       None            12                     32   IOPort       None            13                     33   IOPort       None  

Hal File loadrt mesa_modbus_A5_Driver names=hm2_7i92.0.pktuart.0 and addf mesa_modbus_A5_Driver      servo-thread
Code:
# Generated by PNCconf at Mon Aug 28 20:19:10 2023 # Using LinuxCNC version:  Master (2.9) # If you make changes to this file, they will be # overwritten when you run PNCconf again loadrt [KINS]KINEMATICS loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS loadrt hostmot2 loadrt hm2_eth board_ip="192.168.1.121" config="num_encoders=1 num_pwmgens=0 num_stepgens=2" loadrt mesa_modbus_A5_Driver names=hm2_7i92.0.pktuart.0 setp    hm2_7i92.0.watchdog.timeout_ns 5000000 loadrt pid names=pid.x,pid.z,pid.s loadrt abs names=abs.spindle loadrt lowpass names=lowpass.spindle loadrt scale names=scale.spindle loadrt near addf hm2_7i92.0.read          servo-thread addf motion-command-handler   servo-thread addf motion-controller        servo-thread addf pid.x.do-pid-calcs       servo-thread addf pid.z.do-pid-calcs       servo-thread addf pid.s.do-pid-calcs       servo-thread addf scale.spindle            servo-thread addf abs.spindle              servo-thread addf lowpass.spindle          servo-thread addf near.0                   servo-thread addf hm2_7i92.0.write         servo-thread addf mesa_modbus_A5_Driver      servo-thread setp hm2_7i92.0.dpll.01.timer-us -50 setp hm2_7i92.0.stepgen.timer-number 1 # external output signals # --- DOUT-00 --- setp hm2_7i92.0.gpio.000.is_output true net dout-00  =>     hm2_7i92.0.gpio.000.out # --- SPINDLE-ENABLE --- setp hm2_7i92.0.gpio.005.is_output true net spindle-enable  =>     hm2_7i92.0.gpio.005.out # --- SPINDLE-CW --- setp hm2_7i92.0.gpio.006.is_output true net spindle-cw  =>     hm2_7i92.0.gpio.006.out # --- SPINDLE-CCW --- setp hm2_7i92.0.gpio.007.is_output true net spindle-ccw  =>     hm2_7i92.0.gpio.007.out # --- COOLANT-MIST --- setp hm2_7i92.0.gpio.008.is_output true net coolant-mist  =>     hm2_7i92.0.gpio.008.out # --- DOUT-01 --- setp hm2_7i92.0.gpio.013.is_output true net dout-01  =>     hm2_7i92.0.gpio.013.out # --- DOUT-02 --- setp hm2_7i92.0.gpio.015.is_output true net dout-02  =>     hm2_7i92.0.gpio.015.out # --- DOUT-03 --- setp hm2_7i92.0.gpio.016.is_output true net dout-03  =>     hm2_7i92.0.gpio.016.out # --- ESTOP-OUT --- setp hm2_7i92.0.gpio.030.is_output true net estop-out  =>     hm2_7i92.0.gpio.030.out # --- MACHINE-IS-ENABLED --- setp hm2_7i92.0.gpio.032.is_output true net machine-is-enabled  =>     hm2_7i92.0.gpio.032.out # --- SPINDLE-ENABLE --- setp hm2_7i92.0.gpio.033.is_output true net spindle-enable  =>     hm2_7i92.0.gpio.033.out # external input signals # --- HOME-X --- net home-x     <=  hm2_7i92.0.gpio.012.in # --- HOME-Z --- net home-z     <=  hm2_7i92.0.gpio.014.in # --- DIN-00 --- net din-00     <=  hm2_7i92.0.gpio.019.in # --- DIN-01 --- net din-01     <=  hm2_7i92.0.gpio.020.in # --- DIN-02 --- net din-02     <=  hm2_7i92.0.gpio.021.in # --- DIN-03 --- net din-03     <=  hm2_7i92.0.gpio.022.in # --- ESTOP-EXT --- net estop-ext     <=  hm2_7i92.0.gpio.023.in # --- PROBE-IN --- net probe-in     <=  hm2_7i92.0.gpio.024.in #******************* #  AXIS X JOINT 0 #******************* setp   pid.x.Pgain     [JOINT_0]P setp   pid.x.Igain     [JOINT_0]I setp   pid.x.Dgain     [JOINT_0]D setp   pid.x.bias      [JOINT_0]BIAS setp   pid.x.FF0       [JOINT_0]FF0 setp   pid.x.FF1       [JOINT_0]FF1 setp   pid.x.FF2       [JOINT_0]FF2 setp   pid.x.deadband  [JOINT_0]DEADBAND setp   pid.x.maxoutput [JOINT_0]MAX_OUTPUT setp   pid.x.error-previous-target true # This setting is to limit bogus stepgen # velocity corrections caused by position # feedback sample time jitter. setp   pid.x.maxerror 0.012700 net x-index-enable  =>  pid.x.index-enable net x-enable        =>  pid.x.enable net x-pos-cmd       =>  pid.x.command net x-pos-fb        =>  pid.x.feedback net x-output        <=  pid.x.output # Step Gen signals/setup setp   hm2_7i92.0.stepgen.00.dirsetup        [JOINT_0]DIRSETUP setp   hm2_7i92.0.stepgen.00.dirhold         [JOINT_0]DIRHOLD setp   hm2_7i92.0.stepgen.00.steplen         [JOINT_0]STEPLEN setp   hm2_7i92.0.stepgen.00.stepspace       [JOINT_0]STEPSPACE setp   hm2_7i92.0.stepgen.00.position-scale  [JOINT_0]STEP_SCALE setp   hm2_7i92.0.stepgen.00.step_type        0 setp   hm2_7i92.0.stepgen.00.control-type     1 setp   hm2_7i92.0.stepgen.00.maxaccel         [JOINT_0]STEPGEN_MAXACCEL setp   hm2_7i92.0.stepgen.00.maxvel           [JOINT_0]STEPGEN_MAXVEL # ---closedloop stepper signals--- net x-pos-cmd    <= joint.0.motor-pos-cmd net x-vel-cmd    <= joint.0.vel-cmd net x-output     => hm2_7i92.0.stepgen.00.velocity-cmd net x-pos-fb     <= hm2_7i92.0.stepgen.00.position-fb net x-pos-fb     => joint.0.motor-pos-fb net x-enable     <= joint.0.amp-enable-out net x-enable     => hm2_7i92.0.stepgen.00.enable # ---setup home / limit switch signals--- net home-x     =>  joint.0.home-sw-in net x-neg-limit     =>  joint.0.neg-lim-sw-in net x-pos-limit     =>  joint.0.pos-lim-sw-in #******************* #  AXIS Z JOINT 1 #******************* setp   pid.z.Pgain     [JOINT_1]P setp   pid.z.Igain     [JOINT_1]I setp   pid.z.Dgain     [JOINT_1]D setp   pid.z.bias      [JOINT_1]BIAS setp   pid.z.FF0       [JOINT_1]FF0 setp   pid.z.FF1       [JOINT_1]FF1 setp   pid.z.FF2       [JOINT_1]FF2 setp   pid.z.deadband  [JOINT_1]DEADBAND setp   pid.z.maxoutput [JOINT_1]MAX_OUTPUT setp   pid.z.error-previous-target true # This setting is to limit bogus stepgen # velocity corrections caused by position # feedback sample time jitter. setp   pid.z.maxerror 0.012700 net z-index-enable  =>  pid.z.index-enable net z-enable        =>  pid.z.enable net z-pos-cmd       =>  pid.z.command net z-pos-fb        =>  pid.z.feedback net z-output        <=  pid.z.output # Step Gen signals/setup setp   hm2_7i92.0.stepgen.01.dirsetup        [JOINT_1]DIRSETUP setp   hm2_7i92.0.stepgen.01.dirhold         [JOINT_1]DIRHOLD setp   hm2_7i92.0.stepgen.01.steplen         [JOINT_1]STEPLEN setp   hm2_7i92.0.stepgen.01.stepspace       [JOINT_1]STEPSPACE setp   hm2_7i92.0.stepgen.01.position-scale  [JOINT_1]STEP_SCALE setp   hm2_7i92.0.stepgen.01.step_type        0 setp   hm2_7i92.0.stepgen.01.control-type     1 setp   hm2_7i92.0.stepgen.01.maxaccel         [JOINT_1]STEPGEN_MAXACCEL setp   hm2_7i92.0.stepgen.01.maxvel           [JOINT_1]STEPGEN_MAXVEL # ---closedloop stepper signals--- net z-pos-cmd    <= joint.1.motor-pos-cmd net z-vel-cmd    <= joint.1.vel-cmd net z-output     => hm2_7i92.0.stepgen.01.velocity-cmd net z-pos-fb     <= hm2_7i92.0.stepgen.01.position-fb net z-pos-fb     => joint.1.motor-pos-fb net z-enable     <= joint.1.amp-enable-out net z-enable     => hm2_7i92.0.stepgen.01.enable # ---setup home / limit switch signals--- net home-z     =>  joint.1.home-sw-in net z-neg-limit     =>  joint.1.neg-lim-sw-in net z-pos-limit     =>  joint.1.pos-lim-sw-in #******************* #  SPINDLE #******************* setp   pid.s.Pgain     [SPINDLE_0]P setp   pid.s.Igain     [SPINDLE_0]I setp   pid.s.Dgain     [SPINDLE_0]D setp   pid.s.bias      [SPINDLE_0]BIAS setp   pid.s.FF0       [SPINDLE_0]FF0 setp   pid.s.FF1       [SPINDLE_0]FF1 setp   pid.s.FF2       [SPINDLE_0]FF2 setp   pid.s.deadband  [SPINDLE_0]DEADBAND setp   pid.s.maxoutput [SPINDLE_0]MAX_OUTPUT setp   pid.s.error-previous-target true net spindle-index-enable  =>  pid.s.index-enable net spindle-enable        =>  pid.s.enable net spindle-vel-cmd-rpm-abs     => pid.s.command net spindle-vel-fb-rpm-abs      => pid.s.feedback net spindle-output        <=  pid.s.output # ---Encoder feedback signals/setup--- setp    hm2_7i92.0.encoder.00.counter-mode 0 setp    hm2_7i92.0.encoder.00.filter 1 setp    hm2_7i92.0.encoder.00.index-invert 0 setp    hm2_7i92.0.encoder.00.index-mask 0 setp    hm2_7i92.0.encoder.00.index-mask-invert 0 setp    hm2_7i92.0.encoder.00.scale  [SPINDLE_0]ENCODER_SCALE net spindle-revs             <=   hm2_7i92.0.encoder.00.position net spindle-vel-fb-rps       <=   hm2_7i92.0.encoder.00.velocity net spindle-vel-fb-rpm       <=   hm2_7i92.0.encoder.00.velocity-rpm net spindle-index-enable     <=>  hm2_7i92.0.encoder.00.index-enable # ---setup spindle control signals--- net spindle-vel-cmd-rps        <=  spindle.0.speed-out-rps net spindle-vel-cmd-rps-abs    <=  spindle.0.speed-out-rps-abs net spindle-vel-cmd-rpm        <=  spindle.0.speed-out net spindle-vel-cmd-rpm-abs    <=  spindle.0.speed-out-abs net spindle-enable             <=  spindle.0.on net spindle-cw                 <=  spindle.0.forward net spindle-ccw                <=  spindle.0.reverse net spindle-brake              <=  spindle.0.brake net spindle-revs               =>  spindle.0.revs net spindle-at-speed           =>  spindle.0.at-speed net spindle-vel-fb-rps         =>  spindle.0.speed-in net spindle-index-enable      <=>  spindle.0.index-enable # ---Setup spindle at speed signals--- net spindle-vel-cmd-rps    =>  near.0.in1 net spindle-vel-fb-rps         =>  near.0.in2 net spindle-at-speed       <=  near.0.out setp near.0.scale 1.000000 setp near.0.difference 0.166667 #  Use ACTUAL spindle velocity from spindle encoder #  spindle-velocity bounces around so we filter it with lowpass #  spindle-velocity is signed so we use absolute component to remove sign #  ACTUAL velocity is in RPS not RPM so we scale it. setp     scale.spindle.gain 60 setp     lowpass.spindle.gain 1.000000 net spindle-vel-fb-rps        =>     scale.spindle.in net spindle-fb-rpm               scale.spindle.out       =>   abs.spindle.in net spindle-fb-rpm-abs           abs.spindle.out         =>   lowpass.spindle.in net spindle-fb-rpm-abs-filtered  lowpass.spindle.out   #****************************** # connect miscellaneous signals #****************************** #  ---HALUI signals--- net axis-select-x  halui.axis.x.select net jog-x-pos      halui.axis.x.plus net jog-x-neg      halui.axis.x.minus net jog-x-analog   halui.axis.x.analog net x-is-homed     halui.joint.0.is-homed net axis-select-z  halui.axis.z.select net jog-z-pos      halui.axis.z.plus net jog-z-neg      halui.axis.z.minus net jog-z-analog   halui.axis.z.analog net z-is-homed     halui.joint.1.is-homed net jog-selected-pos      halui.axis.selected.plus net jog-selected-neg      halui.axis.selected.minus net spindle-manual-cw     halui.spindle.0.forward net spindle-manual-ccw    halui.spindle.0.reverse net spindle-manual-stop   halui.spindle.0.stop net machine-is-on         halui.machine.is-on net jog-speed             halui.axis.jog-speed net MDI-mode              halui.mode.is-mdi #  ---coolant signals--- net coolant-mist      <=  iocontrol.0.coolant-mist net coolant-flood     <=  iocontrol.0.coolant-flood #  ---probe signal--- net probe-in     =>  motion.probe-input #  ---motion control signals--- net in-position               <=  motion.in-position net machine-is-enabled        <=  motion.motion-enabled #  ---digital in / out signals--- net dout-00     <=  motion.digital-out-00 net dout-01     <=  motion.digital-out-01 net dout-02     <=  motion.digital-out-02 net dout-03     <=  motion.digital-out-03 net din-00     =>  motion.digital-in-00 net din-01     =>  motion.digital-in-01 net din-02     =>  motion.digital-in-02 net din-03     =>  motion.digital-in-03 #  ---estop signals--- net estop-out     <=  iocontrol.0.user-enable-out net estop-ext     =>  iocontrol.0.emc-enable-in #  ---manual tool change signals--- net tool-change-request    <= iocontrol.0.tool-change net tool-change-confirmed  => iocontrol.0.tool-changed net tool-number            <= iocontrol.0.tool-prep-number #  ---Use external manual tool change dialog--- loadusr -W hal_manualtoolchange net tool-change-request    =>  hal_manualtoolchange.change net tool-change-confirmed  <=  hal_manualtoolchange.changed net tool-number            =>  hal_manualtoolchange.number #  ---ignore tool prepare requests--- net tool-prepare-loopback   iocontrol.0.tool-prepare      =>  iocontrol.0.tool-prepared

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3 years 1 month ago #279673 by PCW
Replied by PCW on topic Mesa modbus and pktUart
Don't know, maybe some difference in the build and run systems.

Also the loadrt line should have "ports" instead of "names"

I was able to launch your configuration here without error
(I shortened the name to lichuan)

halcmd: loadrt lichuan ports=hm2_7i96s.0.pktuart.0
halcmd: addf lichuan.00 servo-thread
halcmd:

 

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3 years 1 month ago #279701 by Donno
Replied by Donno on topic Mesa modbus and pktUart
Thanks for showing me the mistake:

halcmd: loadrt lichuan ports=hm2_7i96s.0.pktuart.0
halcmd: addf lichuan.00 servo-thread

I manage to find the hm2_pktuart_setup_rx -> hostmot2-serial.h i then copied hostmot2.so from linuxcnc-dev/rtlib to /usr/lib/linuxcnc/modules it then through error about hm2_eth so i did the same with hm2_eth.so

I manage to load linuxcnc and found my driver under Pins in HALSHOW will try to get communication going

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3 years 1 month ago #279709 by Donno
Replied by Donno on topic Mesa modbus and pktUart
I am getting a timeout in a5.00.last-error (a5 is the driver name) . QModbus  settings look like this  :

 

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Where do you set the Data bits and Stop Bits in Linuxcnc ? Or is it pre set ? if so what is the default settings ?

 

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3 years 1 month ago #279811 by Donno
Replied by Donno on topic Mesa modbus and pktUart
I manage to get the fault pin away and last-error it seems there is communication but getting error call/response function number mismatch :

 

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I don't know if there is anything i am missing ?

 

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3 years 1 month ago #279834 by PCW
Replied by PCW on topic Mesa modbus and pktUart
1. Do you have the RS-485 bias resistors added as shown earlier in this thread?
2. You might try enabling debug (=3) to see whats going on (and post the  results here)

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