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Flashing new bootloader
1980ace
Posts: 7Member
Hello. I had some problems with my a5 which resulted with me getting a new mainboard. I need to flash a bootloader to the new board so that I can put the firmware on it. I have an arduino uno to flash the bootloader and I would like to make sure that I'm connecting it correctly to the mainboard before I attempt to flash it. I'm new to 3d printing so any help is greatly appreciated!
uno pin 11 to mainboard d51 aux3 (MOSI)
uno pin 12 to mainboard d50 aux3 (MISO)
uno pin 13 to mainboard d52 aux3 (SCK)
uno pin 10 to mainboard RST exp2
uno 5v to mainboard 5v at aux3
uno gnd to mainboard gnd at aux3
Comments
All your pins on the MKS Gen L should be connected to the ICSP port (see first image below).
1. Connect pin 10 on the uno to the RST on the MKS Gen L ICSP port (see image #2 for pinout)
2. Connect MISO, MOSI, SCK, VCC, GND to the matching pins on both MKS ICSP and uno ICSP headers.
3. Flash the bootloader sketch.
4. Open the arduino serial monitor.
5. You may need to choose the correct baud rate to see text correctly.
6. Follow the prompts in the serial monitor.
1. Defaultly, TMC2130 v1.1 setuped to SPI mode by soldered jumpers. It can be different from your already installed v1.0
2. Voltage adjustment should perform with printer power on
And did you remove all jumpers from mainboard under SM drivers nests?
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