how to install custom firmware on Da Vinci Jr.

[prahalad1224]

I have tried using ATSAM-BA 2.1 for installing custom firmware but after upload board not detected. if anyone has binary file of firmware please share

[luc-github]

There is no FW for JR currently - did you read the readme ? https://github.com/luc-github/Repetier-Firmware-0.92/issues/106

there are some work on going but not using arduino and not based on repetier FW and currently not workable

[prahalad1224]

3F1J0_FW_V2.2.0.zip

This the FW on which Im working. but after installation, usb port gets disabled.

[prahalad1224]

Duet-WiFi.zip

and this the wifi FW which I think is compatible with Jr. help pls what to do?

[luc-github]

to flash Jr with duet FW you need to use samba as currently I did not finished to work on bossac for sam4e (https://github.com/luc-github/BOSSA/tree/arduino) I use 2.16

the process is described here and it works for me

be aware duet FW is absolutly not compatible with JR - only the core but not the pinout and I am 99% sure the variant need to be modified as I was not able to find the heater pin neither thermistor pin

Did you worked on jr pinout ?

[prahalad1224]

Jr. pinouts.xlsx

What do you mean by only the core? and yes i have pinout list and have tried it also. but dont know where Im lacking knowledge. and yes it is variant.cpp If I give you pinout list can you share me the modified variant.cpp?

pinout list attched here.

[luc-github]

this is not the pinout just the pin definition from MCU point of view

here the current know pinout that I have shared : http://www.soliforum.com/post/131637/#p131637 we have end stop / light / motors pins still miss heater pin, thermistor pin, sdcard reader pins, lcd pins, filament sensor pin, Jam sensor pin, others TBD ?

also duetFW does not support lcd / keypad so need to add it once pins are found

[luc-github]

also be aware that after erasing FW - the extruder is heating without control as soon as printer is power on so better to disconnect it when doing your tests I connected a 12v fan instead on my JR to monitor the activity

[prahalad1224]

ok thank you for your support. Can you please share me the duet .bin file with details procedure which you have modified to use in SAMBA 2.1?

and meanwhile I will see the pinouts for heater and thermistor. btw my extruder not heating!

[prahalad1224]

also, please share modified variant.cpp on my email. prahalad.solanki.90@gmail.com

it will be a great help. thank you

[luc-github]

Sorry I have nothing to share as I did not modified the vaiant yet - I am currently working with existing variant I did not modified the duet FW for JR, I did some test FW to test find / the pins but nothing for the printer itself

[luc-github]

if you can find pin for extruder and thermistor would be great I am currently busy with another project but will come back to JR porting soon

[luc-github]

any update ?

[luc-github]

I close issue then - feel free to reopen if needed

[the-imperfectionest]

I have one of these on loan to "fix" for a friend. Whats the best way to get the pinouts for you?

[luc-github]

Actually the pinout is now known - (http://www.soliforum.com/topic/13769/davinci-jr-repetier-port/page/6/) the reason why thermistor / heater what not detected was because they are handled by another mcu which make porting even more complex as there are 2 solutions : 1 - hardware rework to re route the pins to main MCU - not easy for most of people 2 - reprogram the MCU in charge of temperature - LPC1115 is an NXP mcu - ideal case would be to be able to flash LPC1115 using the main mcu - not sure it is possible, another solution whould be to use the header to flash it but this need soldering - and this one it is not easy

So it become harder to hack but yet not impossible