STK300 Datasheet | Atmel

Description The main features of the board are shown in the diagram below. Note: There are a number of jumpers on the board which are used to select different operations and voltages. The default jumper settings are for programming operations at 5V JP1 Closed, with brown-out also set to 5V JP2 Open. To carry out other operations, some jumpers may have to be removed- refer to the relevant section for details. A full list of the jumpers and links are given in the table below. Hardware Description Jumpers, Links and their Functions Jumper JP1 JP2 PE0 PE1 Port B Port D LK1 CUT Under Board Function Voltage select Brown out select RS232 RXD RS232 TXD LEDs Switches Analogue Reference LCD Contrast Open 5V 2.9V Port E.0 Port E.1 LEDs Disabled Switches Disabled if LK1 cut then EXTERNAL REF from header If Cut, add extra resistor Closed 3.3V 4.5V RXD TXD LEDs Enabled Switches Enabled ONBOARD POT Default Open Closed Port E.0 Port E.1 Closed Closed Closed Contrast Pot Closed External Connections All Ports are brought out to edge of board on to headers. Each header has a...