10kOhms resistor on NMIN-2107

[mheinrich]

I got the NMIN-2107 board with my todays mail.
When I look to the backside of the PCB there is an additional 10kOhms resistor between GND and PA7 (PIN1 and PIN4 JP2) which is not shown on the schematic of the board.
What is the resistor good for and why isn't it drawn on the schematic sheet that came with the NMIN-2107 board?

[nmitech]

Yes, there is a 10K resistor that connects from PA7 to ground and it soldered on the solder side of J2 connector. This serves the Bootloader recovery purpose when the application program is crashed. As it explains in the manual, if you jumper PA7 high, the bootloader prompt will be enable. From here you can erase the corrupted data and start reload the new program.

Please email me nmitech@newmicros.com, i will email you the new Schematic in PDF file.
Sorry for the inconvinience.