The DE2 board includes a standard PS/2 interface and a connector for a PS/2 keyboard or mouse. Figure 1 shows the schematic of the PS/2 circuit. Instructions for using a PS/2 mouse or keyboard can be found by performing an appropriate search on various educational web sites. The pin assignments for the associated interface are shown in Table 1.
Figure 1. PS/2 Schematic.
Table 1. PS/2 signal assignments
See DE2_pin_assignments.csv, a comma-delimited file that matches "standard" descriptive names to actual FPGA pin locations. This file can be directly opened in Microsoft Excel.
Maintained by John Loomis, last updated 18 April 2007