I received the Digilent Arty S7 50 rev B Board for the 7 Ways to Leave Your Spartan-6 FPGA program. See intro blog: Arty S7 50 First Power Up and Hardware-Only Blinky
According to this Digilent forum post the rev B should be released sometime in 2017
https://forum.digilent.com/topic/22950-about-arty-s7-50-board/?do=findComment&comment=67181
Looking for the Master XDC Xilinx Synopsys Design Constraint (SDC) I've found two versions under two different Digilent repositories. The xdc for revision E is under the Master XDC files for Digilent FPGA and Zynq boards repository, while the version for rev B is under its own repository
## This file is a general .xdc for the ARTY Rev. B
https://github.com/Digilent/Arty-S7-50-base-uc/blob/master/src/constraints/Arty-S7-50-Master.xdc
## This file is a general .xdc for the Arty S7-50 Rev. E
https://github.com/Digilent/digilent-xdc/blob/master/Arty-S7-50-Master.xdc
There are differences between the two constraints files but I am not able to identify if they are just changes in the names of some ports and comments or if they are more important.
But I refer them in case someone runs into trouble using the newer file's constraints and wants to make sure it's not an old constraint he has to use.
On the reference documentation page there are links to three versions of the Arty S7 board schematics
The main changes between version B and version E seem to be the voltage regulation circuit and the DDR3 memory circuit.
I am having trouble powering the board from a battery or from a power supply. The board turns on but then it starts to smell like a burnt circuit as if there is a short circuit somewhere.
Has anyone tried to power the board from any 7V-15V external power source?
