STK1000/Switches
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User switches
Switches on STK1000 provide a flexible way of connecting input to AVR32 designs. 8 switches are located under the LCD screen. The output from these switches are available on the header labelled switch. The typical use of the switches is to connect the flat cable supplied with STK1000 to connect the output of the switches to GPIO lines.
Read the section Connection of LEDs and switches to learn more about connecting the user switches to the GPIO header.
Pin out
Interrupt switches
Interrupt signals are used to tell AVR32 processors that they must interrupt the current task and perform an interrupt routine.
Non maskable Interrupt (NMI) and Interrupt A to D have dedicated switches. These signals are routed directly to the daughter board and not through jumpers the way the user switches are. The interrupt signals are available on the general expansion header as well as the PCI style expansion connector.
Interfaces
Refer the help files of the daughter board to find out what interfaces are used and which peripheral on the processor are connected to the interface.
Schematic
The switches are filtered to avoid spikes and noise from triggering several interrupts when the switch is activated.