Keil™, An ARM® Company

MCBSTR9 User's Guide

Jumper Descriptions

The jumpers used to configure the MCBSTR9 board are:

  • J1 - PWRDWN: Connects PIN 27 of IC2 (Ethernet controller) to GND.
  • J2 - VBATT: Battery Supply Voltage for CPU: Connects +3.3V Supply Voltage to the VBATT of the CPU.
  • J3 - GND: USB device is detected at power-up of the MCBSTR9 board.
  • J3 - P3.7: Allows soft-connect of the USB device by issuing a software restart via P3.7.
  • J4 - AV: Analog Voltage for AIN0: Connects POT1 potentiometer to analog input AIN0.