Plinden

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Plinden
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  • Some news : - using the display i just checked the baud rate, it's ok 115200 - using local commands (buttons near the display) i checked some eeprom values like accelerations, feedrate,steps per mm and so on. All values conform to the original eepro…
  • Another information : i can control the board with the local keyboard and display of the printer (five button system). My peripherals manager says i'm connected over port COM6. But no response of the board.
  • You are certainly right, there is an issue with the baud rate but : with my Olimex AVRISP-MK2 and using Atmel Studio, i can read, verify and upload the firmware as an .hex file and also read, verify and upload the eeprom content as an .eep file. The…
  • Ok. But this does'nt explain why i can not communicate with the board. May be a FTDI driver issue ?
  • I checked the baud rate : 115200 in the printer settings and in the eeprom . As explained the installed firmware is a copy of the original firmware which worked well in the past. As i don't send any command in manual control mode, i can not explain…
  • I suppose some drivers are dead on my Melzi board. I just received a new board, Melzi design from Geetech. Connecting over USB with Repetier-Host (v1.5.6) i can connect but no command working. Serial Port is ok. Firmware and EEPROM are ok ( I downlo…
  • Definitely strange behaviour ! Just for fun, I just plugged Z connector on the X output of the board and the X connector on the Z out put. Using manual control of Repetier-host : clic on X move : Z moves , that's logic, but clicking on Z moves Z als…
  • Still no solution ! I just installed an other Melzi board which i have as spare part. Behaviour slightly different : Z motors do shaked moves, randomly clock- or contraclockwise. I tried to change motor current, no success. After a few trys, board f…
  • Hello, After checking above points, i did'nt find the fault. I tried to modify various parameters, but no success. Please find EEPROM content here after : LanguageBaudrateFilament printedPrinter activeMax. inactive timeStop stepper after inactivityX…
  • Hello Mixanoid, I'm very interested to your firmwaresource as i'm trying to decompile the original hexfile of my melziboard...Please send it to me : tyyeul@gmail.com. I'll be very grateful ! Regards, P.Linden
  • Ok, thanks, i found the way and i can display simultaneously the source code (C/C++) and the desassembled hex file. This is very helpfull to understand the structure, the use of EEPROM and Sram, registers and so on. Explanations in the source code r…
  • Thank you for your answer ! I knew that arduinoIDE is able to use an ISP ! But i tried many and many times, changing drivers, ports, various parameters but i never succeed to communicate with my melzi board through my olimex avrisp-mk2. Of course i …
  • No information regarding LCD display ! Looks like an LCM2004 with a  "zonestar" signed board connected to the Melzi via 10 pins connector : 4 pins for data, 2 for usart 1, 2 pins for sda and scl (i²c), gnd and Vcc. CPU is ATmega1284P. They use five …
  • I got a translation of above text that just confirm the origin of the firmware, that is Repetier 0.91.
  • Thank you very much for your informations ! May be someone will see the above picture, speaking chinese, and be as kind as to give us a short translation ? Hopefully ... Regards, Paul LINDEN
  • For security reason i would like to make a backup of the actual firmware. As i can't access to the config file, how to proceed ?? I found this picture. At the bottom you'll find in clear text "repetier v0.91" and "http://www.repetier.com/download/ !…
  • Hello, Sorry for my late answer. After sending M115 to the printer, i just become printing duration, filament consumption and nothing else !
  • Hello, Hereafter the answer i just received from the seller of my printer : "Dear Paul.Thanks for your trust.I must to say that please don't change the firmware by yourself, as our engineer had changed from Host.So if you changed, some parts will no…
  • Thank you very much for your answer ! How can i determine if the installed repetier firmware is version 0.91 or 0.92.x ? This is my machine. Regards, Paul LINDEN