Klipper——纵维立方Mega Zero 升级

**硬件环境**：
	树莓派5B (已安装 Killper )
	纵维立方Mega Zero (Atmega1284P)

* Klipper 配置 Atmega1284p 固件

```bash
  make menuconfig
  ```

Micro-controller Architecture -->  Atmega AVR

![](/media/202412/image-20241120104659905_1735262437.png)

![](/media/202412/image-20241120104810413_1735262446.png)

* 编译固件

```
  pi@raspberrypi:~/klipper $ make
    Creating symbolic link out/board
    Building out/autoconf.h
    Compiling out/src/sched.o
    Compiling out/src/command.o
    Compiling out/src/basecmd.o
    Compiling out/src/debugcmds.o
    Compiling out/src/initial_pins.o
    Compiling out/src/gpiocmds.o
    Compiling out/src/stepper.o
    Compiling out/src/endstop.o
    Compiling out/src/trsync.o
    Compiling out/src/adccmds.o
    Compiling out/src/spicmds.o
    Compiling out/src/i2ccmds.o
    Compiling out/src/pwmcmds.o
    Compiling out/src/buttons.o
    Compiling out/src/tmcuart.o
    Compiling out/src/neopixel.o
    Compiling out/src/pulse_counter.o
    Compiling out/src/lcd_st7920.o
    Compiling out/src/lcd_hd44780.o
    Compiling out/src/spi_software.o
    Compiling out/src/i2c_software.o
    Compiling out/src/thermocouple.o
    Compiling out/src/sensor_adxl345.o
    Compiling out/src/sensor_angle.o
    Compiling out/src/sensor_mpu9250.o
    Compiling out/src/sensor_lis2dw.o
    Compiling out/src/sensor_ldc1612.o
    Compiling out/src/sensor_hx71x.o
    Compiling out/src/sensor_ads1220.o
    Compiling out/src/sensor_bulk.o
    Compiling out/src/avr/main.o
    Compiling out/src/avr/timer.o
    Compiling out/src/avr/gpio.o
    Compiling out/src/avr/adc.o
    Compiling out/src/avr/spi.o
    Compiling out/src/avr/i2c.o
    Compiling out/src/avr/hard_pwm.o
    Compiling out/src/avr/watchdog.o
    Compiling out/src/avr/serial.o
    Compiling out/src/generic/serial_irq.o
    Building out/compile_time_request.o
  Version: v0.12.0-322-g0855994e5
    Linking out/klipper.elf
    Creating hex file out/klipper.elf.hex
  ```

* 烧录
  使用一根 Mirco USB 线将树莓派和Atmega1284P连接，Mega Zero 接通电源可以在树莓派上看到设备 /dev/ttyUSB0；

```bash
  pi@raspberrypi:~/klipper $ ls -l /dev/ttyUSB0 
  crw-rw---- 1 root dialout 188, 0 Nov 20 10:15 /dev/ttyUSB0
  
  # 烧录
  pi@raspberrypi:~/klipper $ sudo avrdude -carduino -patmega1284p -P /dev/ttyUSB0 -b 115200 -D -U flash:w:out/klippei
  
  avrdude: AVR device initialized and ready to accept instructions
  avrdude: device signature = 0x1e9705 (probably m1284p)
  avrdude: reading input file out/klipper.elf.hex for flash
           with 33320 bytes in 1 section within [0, 0x8227]
           using 131 pages and 216 pad bytes
  avrdude: writing 33320 bytes flash ...
  
  Writing | ################################################## | 100% 4.22 s 
  
  avrdude: 33320 bytes of flash written
  avrdude: verifying flash memory against out/klipper.elf.hex
  
  Reading | ################################################## | 100% 3.61 s 
  
  avrdude: 33320 bytes of flash verified
  
  avrdude done.  Thank you
  ```

![](/media/202412/image-20241120105629455_1735262456.png)

* 修改 klipper 配置文件

参考 generic-melzi.cfg 文件根据设备实际情况修改 printer.cfg 文件；

![](/media/202412/image-20241120112355739_1735262471.png)

```
  [include fluidd.cfg]
  
  [virtual_sdcard]
  path: /home/pi/printer_data/gcodes
  on_error_gcode: CANCEL_PRINT
  
  [stepper_x]
  step_pin: PD7
  dir_pin: !PC5
  enable_pin: !PD6
  microsteps: 16
  rotation_distance: 40
  endstop_pin: ^PC2
  position_endstop: 0
  position_max: 200
  homing_speed: 50
  
  [stepper_y]
  step_pin: PC6
  dir_pin: !PC7
  enable_pin: !PD6
  microsteps: 16
  rotation_distance: 40
  endstop_pin: ^PC3
  position_endstop: 0
  position_max: 200
  homing_speed: 50
  
  [stepper_z]
  step_pin: PB3
  dir_pin: PB2
  enable_pin: !PA5
  microsteps: 16
  rotation_distance: 8
  endstop_pin: ^PC4
  position_endstop: 0.5
  position_max: 200
  
  [extruder]
  step_pin: PB1
  dir_pin: PB0
  enable_pin: !PD6
  microsteps: 16
  rotation_distance: 33.500
  nozzle_diameter: 0.400
  filament_diameter: 1.750
  heater_pin: PD5
  sensor_type: EPCOS 100K B57560G104F
  sensor_pin: PA7
  control: pid
  pid_Kp: 22.2
  pid_Ki: 1.08
  pid_Kd: 114
  min_temp: 0
  max_temp: 250
  
  # [heater_bed]
  # heater_pin: PD2
  # sensor_type: EPCOS 100K B57560G104F
  # sensor_pin: PA6
  # control: watermark
  # min_temp: 0
  # max_temp: 130
  
  [fan]
  pin: PB4
  
  [mcu]
  serial: /dev/ttyUSB0
  
  [printer]
  kinematics: cartesian
  max_velocity: 300
  max_accel: 3000
  max_z_velocity: 5
  max_z_accel: 100
  
  # 屏幕配置
  [display]
  lcd_type: st7920
  cs_pin: PA3
  sclk_pin: PA1
  sid_pin: PC1
  encoder_pins: ^PD2, ^PD3
  click_pin: ^!PC
  
  ```

```bash
# 启动
 /home/pi/klippy-env/bin/python /home/pi/klipper/klippy/klippy.py /home/pi/printer_data/config/printer.cfg -I /home/pi/printer_data/comms/klippy.serial -l /home/pi/printer_data/logs/klippy.log -a /home/pi/printer_data/comms/klippy.sock

# 查看日志
tail -f /home/pi/printer_data/logs/klippy.log
```

# 参考文档

[Atmega1284p BootLoad](https://www.klipper3d.org/zh/Bootloaders.html#atmega1284p)

[Mega Zero 配置文件](https://raw.githubusercontent.com/KevinOConnor/klipper/master/config/printer-creality-ender3-2018.cfg)