User`s manual
JampII-mini Users Manual  - 6 -  PD0606-6-00-01 
Q  JP10  Factory test input 
R  JP5  Boot mode selection (BOOT 0) 
S  JP4  Boot mode selection (BOOT 1) 
T  J14  DB9 RS-232 output 
U  J10  RS-485 output 
V  J5  Ethernet port connector 
3.1.  Assembly and Connections 
  In order to use JampII-mini, the user must first assemble and connect the peripherals to 
JampII-mini, as described in the following procedure. 
1.  Place JampII-mini on a static free surface. 
2.  Make sure all of the jumpers are in the default position. See Table3-2 for more on jumper 
setting. 
3.  Connect 5V regulated power supply to the board. 
4.  Connect serial cross cable between JampII-mini UART 1 (J13) and PC/terminal serial port. 
5.  Launch a terminal program such as HyperTerminal on the PC. Configure the serial port with the 
following parameters: 57600 bits per second, 8 data bits, no parity, 1 stop bit, no flow control. 
6.  Connect the board to a local area network (optional). User can connect JampII-mini directly to 
one computer with cross cable, or use ordinary Ethernet cable connects JampII-mini to hub. 
3.2.  Operation 
  When power is first apply all LED in JampII-mini will light up, after a short period the red LED 
will turn off. If the red LED turns on for a very long period after power up, it is possible that hardware 
may already damage. In this case, please contact Design Gateways tech support (support@design-
gateway.com). 
  A few second after red LED turn off, the debug information will be displayed on the terminal 
program. For more detail about software functionality, please see Chapter 5 Software Description 
3.3.  Configurations 
  Jumpers are used to configure JampII-mini to operate in different mode. The following table 
lists all the settings for each jumper. 










