Trying to create a printer.cfg. Is it possible to get fan pin and stepper current info from marlin source?

bassamanator · January 26, 2023, 8:42pm

Hi there,

I’m trying to refine a printer.cfg that I found for my printer, Sovol SV06.
It’s missing:

The heater_fan information. I’m trying to find the pin for that fan.
I also want to set the correct run_current for the stepper motors.

The Marlin source code is open to the public for this printer. I’m having trouble finding this information in the source code though.

Is this information embeded within the Marlin source? Should I keep looking?

Thanks!

Sineos · January 27, 2023, 7:13am

Following is the logic and the way how to find such information in Marlin sources:

Identify the MOTHERBOARD in the relevant Configuration.h
Find it in boards.h
Then scroll up in boards.h to see which is the leading MCU type
Find the pins_XXX.h in the relevant folder of the MCU type

#1

github.com

Sovol3d/Sv06-Source-Code/blob/315aa28b5c1438b36ae17dc43500cfc70e7e24b0/Marlin/Configuration.h#L143


      
          * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
          */
          //#define SERIAL_PORT_3 1
          //#define BAUDRATE_3 250000   // Enable to override BAUDRATE
          
          
// Enable the Bluetooth serial interface on AT90USB devices
          //#define BLUETOOTH
          
          
// Choose the name from boards.h that matches your setup
          #ifndef MOTHERBOARD
           #define MOTHERBOARD BOARD_SOVOL_V131
          #endif
          
          
// Name displayed in the LCD "Ready" message and Info menu
          #define CUSTOM_MACHINE_NAME "SOVOL SV06"
          
          
// Printer's unique ID, used by some programs to differentiate between machines.
          // Choose your own or use a service like https://www.uuidgenerator.net/version4
          //#define MACHINE_UUID "00000000-0000-0000-0000-000000000000"
          
          
/**

#2

github.com

Sovol3d/Sv06-Source-Code/blob/315aa28b5c1438b36ae17dc43500cfc70e7e24b0/Marlin/src/core/boards.h#L358


      
          #define BOARD_CREALITY_V453           4048  // Creality v4.5.3 (STM32F103RE)
          #define BOARD_TRIGORILLA_PRO          4049  // Trigorilla Pro (STM32F103ZET6)
          #define BOARD_FLY_MINI                4050  // FLYmaker FLY MINI (STM32F103RCT6)
          #define BOARD_FLSUN_HISPEED           4051  // FLSUN HiSpeedV1 (STM32F103VET6)
          #define BOARD_BEAST                   4052  // STM32F103RET6 Libmaple-based controller
          #define BOARD_MINGDA_MPX_ARM_MINI     4053  // STM32F103ZET6 Mingda MD-16
          #define BOARD_GTM32_PRO_VD            4054  // STM32F103VET6 controller
          #define BOARD_ZONESTAR_ZM3E2          4055  // Zonestar ZM3E2    (STM32F103RCT6)
          #define BOARD_ZONESTAR_ZM3E4          4056  // Zonestar ZM3E4 V1 (STM32F103VCT6)
          #define BOARD_ZONESTAR_ZM3E4V2        4057  // Zonestar ZM3E4 V2 (STM32F103VCT6)
          #define BOARD_SOVOL_V131              4058  // Sovol V1.3.1 (GD32F103RET6)
          
          
//
          // ARM Cortex-M4F
          //
          
          
#define BOARD_TEENSY31_32             4100  // Teensy3.1 and Teensy3.2
          #define BOARD_TEENSY35_36             4101  // Teensy3.5 and Teensy3.6
          
          
//
          // STM32 ARM Cortex-M4F

#3

github.com

Sovol3d/Sv06-Source-Code/blob/315aa28b5c1438b36ae17dc43500cfc70e7e24b0/Marlin/src/core/boards.h#L297


      
          #define BOARD_KRATOS32                3027  // K.3D Kratos32 (Arduino Due Shield)
          
          
//
          // SAM3X8C ARM Cortex M3
          //
          
          
#define BOARD_PRINTRBOARD_G2          3100  // PRINTRBOARD G2
          #define BOARD_ADSK                    3101  // Arduino DUE Shield Kit (ADSK)
          
          
//
          // STM32 ARM Cortex-M3
          //
          
          
#define BOARD_MALYAN_M200_V2          4000  // STM32F070CB controller
          #define BOARD_MALYAN_M300             4001  // STM32F070-based delta
          #define BOARD_STM32F103RE             4002  // STM32F103RE Libmaple-based STM32F1 controller
          #define BOARD_MALYAN_M200             4003  // STM32C8T6 Libmaple-based STM32F1 controller
          #define BOARD_STM3R_MINI              4004  // STM32F103RE Libmaple-based STM32F1 controller
          #define BOARD_GTM32_PRO_VB            4005  // STM32F103VET6 controller
          #define BOARD_GTM32_MINI              4006  // STM32F103VET6 controller
          #define BOARD_GTM32_MINI_A30          4007  // STM32F103VET6 controller

#4

github.com

Sovol3d/Sv06-Source-Code/blob/main/Marlin/src/pins/stm32f1/pins_SOVOL_V131.h

/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 *

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bassamanator · January 27, 2023, 10:58pm

I wasn’t expecting this. Thank you so much!

I’ll post back when I complete this task

Much

bassamanator · January 29, 2023, 1:04pm

@Sineos Learned a lot looking through the source code, thanks for that!

Still can’t seem to find the pin for the hotend_fan. I only see one fan listed, which is the part cooling fan.

Is there someone else that I should be looking?

theophile · January 29, 2023, 2:09pm

Some printers have the hotend fan wired directly to the +12V/+24V rail (e.g. Ender 3). Maybe yours is like that too?

Sineos · January 29, 2023, 3:00pm

Well, without knowing the board it is difficult:

You could trace back the fan’s pins from the connector and see where you end up
On a lot of boards, the hot-end fan is not PWM controlled but fixed speed. It is possible that a high heater pin automatically sets the hot-end high as well without own dedicated pin.

Quick google revealed at least three Klipper cfg for this board (there is even an open PR for Klipper):

github.com

Pr20100/SOVOL-SV06-Klipper-profile/blob/main/Files/printer.cfg

# This file contains pin mappings for the stock Sovol SV06
# To use this config, during "make menuconfig" select the
# STM32F103 with a "28KiB bootloader" and serial (on USART1 PA10/PA9) communication.
# Also, since it is using the GD32F103, please select Disable SWD at startup

# Flash this firmware by copying "out/klipper.bin" to a SD card and
# turning on the printer with the card inserted. The firmware
# filename must end in ".bin" and must not match the last filename
# that was flashed.

# See docs/Config_Reference.md for a description of parameters.

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0
restart_method: command

#############################################################################################################
      ### PRINTING PROFILE

# If you have an error : ".../steppers/steppers-basic.cfg' does not exist"

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github.com

spinixguy/Sovol-SV06-firmware/blob/main/klipper-printer-sovol-sv06.cfg

# This file contains pin mappings for the stock Sovol SV06
# To use this config, during "make menuconfig" select the 
# STM32F103 with a "28KiB bootloader" and serial (on USART1 PA10/PA9) communication.
# Also, since it is using the GD32F103, please select Disable SWD at startup

# Flash this firmware by copying "out/klipper.bin" to a SD card and
# turning on the printer with the card inserted. The firmware
# filename must end in ".bin" and must not match the last filename
# that was flashed.

# See docs/Config_Reference.md for a description of parameters.
[include mainsail.cfg]

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0
restart_method: command

[printer]
kinematics: cartesian
max_velocity: 300

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All lack a hot-end fan. So it seems to be handled differently

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