====== DIP-switches and buttons information ======

The GECKO4-Education platform contains two 8-position DIP-switches and seven buttons as shown in the below figure.
{{ :gecko4education_epfl:buttons-epfl.png?220 |}}

Each of these switches is connected to an individual FPGA-pin. In case a switch is activated it gives 0V (logic 1) and if it is not activated it gives VCC (logic 0) on the FPGA-pin (the switches are therefore active low). Furthermore, all switches do not include an anti-dender circuit and the seven buttons are connected to clock-inputs of the FPGA.

===== DIP-switch(es) information =====

The below table indicates at which FPGA-pin each of the switches of the DIP-switches is connected. And {{ :gecko4education_epfl:dip_switches.tcl | here}} you find an example tcl script that can be used for pin-assignment in Quartus.
^Switch     ^1      ^2      ^3       ^4       ^5      ^6      ^7      ^8      ^
|DIP-switch1|PIN_V11|PIN_V10|PIN_AB10|PIN_AA10|PIN_AB9|PIN_AA9|PIN_AB8|PIN_AA8|
|DIP-switch2|PIN_Y8 |PIN_AB7|PIN_AA7 |PIN_Y7  |PIN_Y6 |PIN_AB5|PIN_AA5|PIN_AB4|

===== Button(s) information =====

The below table indicates at which FPGA-pin each of the buttons is connected. And {{ :gecko4education_epfl:switches.tcl | here}} you find an example tcl script that can be used for pin-assignment in Quartus.

^SW1    ^SW2    ^SW3    ^SW4    ^SW5    ^SW6     ^SW7     ^
|PIN_B11|PIN_A11|PIN_B12|PIN_A12|PIN_G22|PIN_AA11|PIN_AB11|
<note tip>All the seven buttons are connected to clock inputs of the FPGA and can therefore be used as clock source.</note>