strange bug encountered. dir-pins

[keverin16]

hello everyone, i encountered a strange bug.
I compiled rp2040 firmware invisual studio, only changed to generic 4-axis, changed some pin numbers and set the number of axes to 4 in grbl-config. after compiling it marks "M3_STEP_PIN STEP_PINS_BASE + 3" yellow in visual studio, but i couldnt find a problem.
Anyway, after connecting to the board with openbuilds control i get ERROR 71, but it does connect ok. Does not want to connect to gsender, shows incompatible.
Now everything works fine in openbuilds control, except direction signal. I can jog+, i can jog-, it doesnt change. Only way i can make it change is if i invert the axis with $3. So it seems to be configured right. Anyone has an idea?

[terjeio]

Post your modified board map please, or replicate the bug with one of the provided board maps and tell me which.

[keverin16]

Post your modified board map please, or replicate the bug with one of the provided board maps and tell me which.

i tried with the stock config - compiles without problems
then i changed to board_generic_4axis by uncommenting this in my_machine - compiles without problems
then i changed the config to real 4-axes in grbl - config - N_Axis to "4" - then i get warnings in the driver.h folder. it underlines this in yellow: "M3_STEP_PIN STEP_PINS_BASE + 3"

[terjeio]

it underlines this in yellow: "M3_STEP_PIN STEP_PINS_BASE + 3"

Oops, a duplicate definition - will fix in the next commit. You can ignore it for now, or delete one of them.

[keverin16]

it underlines this in yellow: "M3_STEP_PIN STEP_PINS_BASE + 3"

Oops, a duplicate definition - will fix in the next commit. You can ignore it for now, or delete one of them.

I removed one, now that problem is gone, thanks.
But the main problem is still here and i have no idea why its here
all direction pins never change their state when i change direction. But when i invert them with $3 i can change them one by one, so they are working. Also still get error 71 when i connect with openbuilds control.

[keverin16]

here is what i see when connecting to openbuilds control:

[10:45:40] [ connect ] PORT INFO: Port is now open: COM3 - Attempting to detect Controller...

[10:45:40] [ connect ] Attempting to detect Controller (1): (Autoreset)

[10:45:40] [ ] ok

[10:45:40] [ connect ] Attempting to detect Controller (2): (Ctrl+X)

[10:45:41] [ connect ] Attempting to detect Controller (3): (others)

[10:45:41] [ ] error:71

[10:45:41] [ connect ] Attempting to detect Controller (4): (DTR Enable)

[10:45:41] [ ] GrblHAL 1.1f ['$' or '$HELP' for help]

[10:45:41] [ ] GrblHAL 1.1f ['$' or '$HELP' for help]

[10:45:42] [ connect ] Firmware Detected: grblHAL version 1.1f dated on COM3

[10:45:42] [ [external from hardware] ] OpenBuilds CONTROL received a FEEDHOLD notification from Grbl: This could be due to someone pressing the HOLD button (if connected)

[10:45:42] [ [external from hardware] ] OpenBuilds CONTROL received a CYCLESTART/RESUME notification from Grbl: This could be due to someone pressing the CYCLESTART/RESUME button (if connected)

[10:45:42] [ $$ ] $0=5.0 ;Step pulse time, microseconds

[10:45:42] [ $$ ] $1=25 ;Step idle delay, milliseconds

[10:45:42] [ $$ ] $2=0 ;Step pulse invert, mask

[10:45:42] [ $$ ] $3=0 ;Step direction invert, mask

[10:45:42] [ $$ ] $4=15 ;Invert step enable pin, boolean

[10:45:42] [ $$ ] $5=0 ;Invert limit pins, boolean/mask

[10:45:42] [ $$ ] $6=0 ;Invert probe pin, boolean

[10:45:42] [ $$ ] $9=1 ;PWM Spindle as bitfield where setting bit 0 enables the rest

[10:45:42] [ $$ ] $10=511 ;Status report options, mask

[10:45:42] [ $$ ] $11=0.010 ;Junction deviation, millimeters

[10:45:42] [ $$ ] $12=0.002 ;Arc tolerance, millimeters

[10:45:42] [ $$ ] $13=0 ;Report in inches, boolean (CONTROL needs $13=0)

[10:45:42] [ $$ ] $14=0 ;Invert control input signals, mask

[10:45:42] [ $$ ] $15=0 ;Coolant pins invert, mask

[10:45:42] [ $$ ] $16=0 ;Spindle pins invert, mask

[10:45:42] [ $$ ] $17=0 ;Control pins pullup disable, mask

[10:45:42] [ $$ ] $18=0 ;Limit pins pullup disable, mask

[10:45:42] [ $$ ] $19=0 ;Probe pin pullup disable, boolean

[10:45:42] [ $$ ] $20=0 ;Soft limits enable, boolean

[10:45:42] [ $$ ] $21=0 ;Hard limits enable, boolean

[10:45:42] [ $$ ] $22=0 ;Homing cycle enable, boolean (Grbl) / mask (GrblHAL)

[10:45:42] [ $$ ] $23=0 ;Homing direction invert, mask

[10:45:42] [ $$ ] $24=25.0 ;Homing locate feed rate, mm/min

[10:45:42] [ $$ ] $25=500.0 ;Homing search seek rate, mm/min

[10:45:42] [ $$ ] $26=250 ;Homing switch debounce delay, milliseconds

[10:45:42] [ $$ ] $27=1.000 ;Homing switch pull-off distance, millimeters

[10:45:42] [ $$ ] $28=0.100 ;G73 retract distance, in mm

[10:45:42] [ $$ ] $29=0.0 ;Step pulse delay (ms)

[10:45:42] [ $$ ] $30=1000.000 ;Maximum spindle speed, RPM

[10:45:42] [ $$ ] $31=0.000 ;Minimum spindle speed, RPM

[10:45:42] [ $$ ] $32=0 ;Laser-mode enable, boolean

[10:45:42] [ $$ ] $33=5000.0 ;Spindle PWM frequency

[10:45:42] [ $$ ] $34=0.0 ;Spindle off Value

[10:45:42] [ $$ ] $35=0.0 ;Spindle min value

[10:45:42] [ $$ ] $36=100.0 ;Spindle max value

[10:45:42] [ $$ ] $37=0 ;Stepper deenergize mask

[10:45:42] [ $$ ] $39=1 ;Enable printable realtime command characters, boolean

[10:45:42] [ $$ ] $40=0 ;Apply soft limits for jog commands, boolean

[10:45:42] [ $$ ] $43=1 ;Homing passes

[10:45:42] [ $$ ] $44=4 ;Homing cycle 1

[10:45:42] [ $$ ] $45=3 ;Homing cycle 2

[10:45:42] [ $$ ] $46=0 ;Homing cycle 3

[10:45:42] [ $$ ] $47=0 ;Homing cycle 4

[10:45:42] [ $$ ] $62=0 ;Sleep Enable

[10:45:42] [ $$ ] $63=3 ;Feed Hold Actions

[10:45:42] [ $$ ] $64=0 ;Force Init Alarm

[10:45:42] [ $$ ] $65=0 ;Require homing sequence to be executed at startup

[10:45:42] [ $$ ] $100=250.00000 ;X-axis steps per millimeter

[10:45:42] [ $$ ] $101=250.00000 ;Y-axis steps per millimeter

[10:45:42] [ $$ ] $102=250.00000 ;Z-axis steps per millimeter

[10:45:42] [ $$ ] $103=250.00000 ;A-axis steps per degree

[10:45:42] [ $$ ] $110=500.000 ;X-axis maximum rate, mm/min

[10:45:42] [ $$ ] $111=500.000 ;Y-axis maximum rate, mm/min

[10:45:42] [ $$ ] $112=500.000 ;Z-axis maximum rate, mm/min

[10:45:42] [ $$ ] $113=500.000 ;A-axis maximum rate, deg/min

[10:45:42] [ $$ ] $120=10.000 ;X-axis acceleration, mm/sec^2

[10:45:42] [ $$ ] $121=10.000 ;Y-axis acceleration, mm/sec^2

[10:45:42] [ $$ ] $122=10.000 ;Z-axis acceleration, mm/sec^2

[10:45:42] [ $$ ] $123=10.000 ;A-axis acceleration, deg/sec^2

[10:45:42] [ $$ ] $130=200.000 ;X-axis maximum travel, millimeters

[10:45:42] [ $$ ] $131=200.000 ;Y-axis maximum travel, millimeters

[10:45:42] [ $$ ] $132=200.000 ;Z-axis maximum travel, millimeters

[10:45:42] [ $$ ] $133=200.000 ;A-axis maximum travel, degrees

[10:45:42] [ $$ ] $341=0 ;Tool Change Mode

[10:45:42] [ $$ ] $342=30.0 ;Tool Change probing distance

[10:45:42] [ $$ ] $343=25.0 ;Tool Change Locate Feed rate

[10:45:42] [ $$ ] $344=200.0 ;Tool Change Search Seek rate

[10:45:42] [ $$ ] $345=200.0 ;Tool Change Probe Pull Off rate

[10:45:42] [ $$ ] $346=1 ;Restore position after M6 as boolean

[10:45:42] [ $$ ] $370=0 ;Invert I/O Port Inputs (mask)

[10:45:42] [ $$ ] $376=0 ;Rotational axes as bitfield

[10:45:42] [ $$ ] $384=0 ;Disable G92 Persistence

[10:45:42] [ $$ ] $394=0.0 ;Spindle on delay in s, range: 0.5 - 20

[10:45:42] [ $$ ] $398=100 ;Planner buffer blocks

[10:45:42] [ $$ ] $481=0 ;Autoreport interval in ms

[10:45:42] [ $$ ] $484=1 ;Unlock required after E-Stop as boolean

[10:45:42] [ $$ ] $486=0 ;Lock coordinate systems as bitfield

[10:45:42] [ $$ ] $534=0 ;unknown

[10:45:42] [ $$ ] $538=0 ;unknown

[10:45:42] [ $$ ] $539=0.0 ;unknown

[10:45:42] [ $$ ] $673=0.0 ;Coolant on delay in s, range: 0.5 - 20

[10:45:42] [ $$ ] $676=3 ;unknown

[10:45:42] [ $$ ] ok

[10:45:43] [ $I ] [VER:1.1f.20250405:]

[10:45:43] [ $I ] [OPT:VNMSL,100,1024,4,0]

[10:45:43] [ $I ] [AXS:4:XYZA]

[10:45:43] [ $I ] [NEWOPT:ENUMS,RT+,ES,EXPR,SED,RTC]

[10:45:43] [ $I ] [FIRMWARE:grblHAL]

[10:45:43] [ $I ] [SIGNALS:HSEP]

[10:45:43] [ $I ] [NVS STORAGE:*FLASH 4K]

[10:45:43] [ $I ] [FREE MEMORY:216K]

[10:45:43] [ $I ] [DRIVER:RP2040]

[10:45:43] [ $I ] [DRIVER VERSION:250405]

[10:45:43] [ $I ] [DRIVER OPTIONS:SDK_2.1.1]

[10:45:43] [ $I ] [AUX IO:2,0,0,0]

[10:45:43] [ $I ] [PLUGIN:Bootloader Entry v0.01]

[10:45:43] [ $I ] ok

[10:45:43] [ $G ] [GC:G0 G54 G17 G21 G90 G94 G49 G98 G50 M5 M9 T0 F0 S0.]

[10:45:43] [ $G ] ok

[keverin16]

i am really at a loss here, i measure directly at the rp2040 GPIO pin. so with $3 i can switch every direction pin between 0V and 3.3V. But if i jog around in both directions they just never change their state.
Same Problem in IOsender.

[terjeio]

I have just tested a 4-axis config made by the Web Builder and that works, so I need this or I am not able provide any help. And BTW which version do you have - $I output please.

Error 71 is from a bad expression - due to openbuilds control sending an incorrect command?

[keverin16]

I have just tested a 4-axis config made by the Web Builder and that works, so I need this or I am not able provide any help. And BTW which version do you have - $I output please.

Error 71 is from a bad expression - due to openbuilds control sending an incorrect command?

/*
generic_map_4axis.h - driver code for RP2040 ARM processors

Part of grblHAL

Copyright (c) 2021-2025 Terje Io
Copyright (c) 2021 Volksolive

grblHAL is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

grblHAL is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with grblHAL. If not, see http://www.gnu.org/licenses/.
*/

#if TRINAMIC_ENABLE
#error Trinamic plugin not supported!
#endif

#if N_ABC_MOTORS > 1
#error "Axis configuration is not supported!"
#endif

// Define step pulse output pins.
#define STEP_PORT GPIO_PIO // N_AXIS pin PIO SM
#define STEP_PINS_BASE 11 // N_AXIS number of consecutive pins are used by PIO

// Define step direction output pins.
#define DIRECTION_PORT GPIO_OUTPUT
#define X_DIRECTION_PIN 15
#define Y_DIRECTION_PIN 16
#define Z_DIRECTION_PIN 17
#define DIRECTION_OUTMODE GPIO_SHIFT6

// Define stepper driver enable/disable output pin.
#define ENABLE_PORT GPIO_OUTPUT
#define STEPPERS_ENABLE_PIN 7

// Define homing/hard limit switch input pins.
#define X_LIMIT_PIN 1
#define Y_LIMIT_PIN 2
#define Z_LIMIT_PIN 3
#define LIMIT_INMODE GPIO_MAP

// Define ganged axis or A axis step pulse and step direction output pins.
#if N_ABC_MOTORS > 0
#define M3_AVAILABLE
#define M3_DIRECTION_PIN (Z_DIRECTION_PIN + 1)
#define M3_LIMIT_PIN (Z_LIMIT_PIN + 1)
#else
#define AUXINPUT0_PIN 14
#define AUXOUTPUT0_PORT GPIO_OUTPUT
#define AUXOUTPUT0_PIN 5
#define AUXOUTPUT1_PORT GPIO_OUTPUT
#define AUXOUTPUT1_PIN 9
#endif

#define AUXOUTPUT2_PORT GPIO_OUTPUT // Spindle PWM
#define AUXOUTPUT2_PIN 22
#define AUXOUTPUT3_PORT GPIO_OUTPUT // Spindle direction
#define AUXOUTPUT3_PIN 9
#define AUXOUTPUT4_PORT GPIO_OUTPUT // Spindle enable
#define AUXOUTPUT4_PIN 19
#define AUXOUTPUT5_PORT GPIO_OUTPUT // Coolant flood
#define AUXOUTPUT5_PIN 20
#define AUXOUTPUT6_PORT GPIO_OUTPUT // Coolant mist
#define AUXOUTPUT6_PIN 21

// Define driver spindle pins
#if DRIVER_SPINDLE_ENABLE
#define SPINDLE_PORT GPIO_OUTPUT
#endif
#if DRIVER_SPINDLE_ENABLE & SPINDLE_PWM
#define SPINDLE_PWM_PIN AUXOUTPUT2_PIN
#endif
#if DRIVER_SPINDLE_ENABLE & SPINDLE_DIR
#define SPINDLE_DIRECTION_PIN AUXOUTPUT3_PIN
#endif
#if DRIVER_SPINDLE_ENABLE & SPINDLE_ENA
#define SPINDLE_ENABLE_PIN AUXOUTPUT4_PIN
#endif

// Define flood and mist coolant enable output pins.
#if COOLANT_ENABLE
#define COOLANT_PORT GPIO_OUTPUT
#endif
#if COOLANT_ENABLE & COOLANT_FLOOD
#define COOLANT_FLOOD_PIN AUXOUTPUT5_PIN
#endif
#if COOLANT_ENABLE & COOLANT_MIST
#define COOLANT_MIST_PIN AUXOUTPUT6_PIN
#endif

#define AUXINPUT1_PIN 23
#define AUXINPUT2_PIN 24
#define AUXINPUT3_PIN 5 // Probe

// Define user-control controls (cycle start, reset, feed hold) input pins.
#define RESET_PIN 8
#define FEED_HOLD_PIN 6
#define CYCLE_START_PIN 25

#if PROBE_ENABLE
#define PROBE_PIN AUXINPUT3_PIN
#endif

#if SAFETY_DOOR_ENABLE
#define SAFETY_DOOR_PIN AUXINPUT1_PIN
#elif MOTOR_FAULT_ENABLE
#define MOTOR_FAULT_PIN AUXINPUT1_PIN
#endif

[keverin16]

which version do you have - $I output please.

what do you mean by that? Which version of what?

[terjeio]

#define DIRECTION_OUTMODE GPIO_SHIFT6

cannot work - try GPIO_SHIFT15 instead, since you have changed the pins

[keverin16]

Great, will try tomorrow.
I am far from a programmer, can you explain what that number 15 means ond how do i know which to pick when i change the pin numbers?

[terjeio]

It is number of bit shifts to get the core supplied direction bits aligned with the GPIO register pins. Shift equals the X-dir pin, and shifting can only be used when the pins are consecutive (X, Y, Z, ... i.e. in the same order as delivered from the core).