I spent another 4 hours trying to resolve my communication error with my plastruder.
I cannot find any more solution to try.
I realy think it's the hardware that make that.
I installed the firmware v. 1.8 and connect a new thermistor for the build plateforme
and I cannot see it in repG like the other one. Also, when seting to 60C the LED
on the board dosen't light up.
I Installed RS486_tester from the gen3 firmware package on the master and the plastruder.
Connecting the USB cable on the plastruder show me that it was sending data.
When connected on the master it show that t wait for a response that never append.
I also try to update to firmware 1.8 from repG 10 since someone told that repG12 can make problem.
Nothing new. Always the payload error and the no firmware version in repG.
Can it be the bootloader on the board ?
Can it be because I pushed the bootloader on the sanguino in bitbang mode ?