I've almost finished to build my lxr. However it start to have a weird behaviour after I did an update through the sdCard and few attempt to burn the Avr through avrdude.Just before then it's been working for a while. The update went till the end and ask me to reboot...and kaboom nothing apart from a half turned on lcd. Anyhow I checked continuity between 5v and ground without the stm32 inserted: it is a plain 4.96. I could access the bootloader or the front system...but if I plug the mainboard and reboot I get only a faint lcd and no sign of life from the lxr. Check voltage on the isp on the frontboard it give me around 2.7v. I probably need to mention that I use an atmega644PA (those one on the shruti or ambika) so I had to tweak a bit the fuse setting.
So here it is I'm in front of wall wondering what to do next not being sur if that's a problem coming from badly update atmega...or worse something related to the mainboard. Any help would be apreciated