User manual

DE2 User Manual

Configuring the FPGA in JTAG Mode

Figure 4.1 illustrates the JTAG configuration setup. To download a configuration bit stream into the

Cyclone II FPGA, perform the following steps:

• Ensure that power is applied to the DE2 board

• Connect the supplied USB cable to the USB Blaster port on the DE2 board (see Figure 2.1)

• Configure the JTAG programming circuit by setting the RUN/PROG switch (on the left side

of the board) to the RUN position.

• The FPGA can now be programmed by using the Quartus II Programmer module to select a

configuration bit stream file with the .sof filename extension

Figure 4.1. The JTAG configuration scheme.

Configuring the EPCS16 in AS Mode

Figure 4.2 illustrates the AS configuration set up. To download a configuration bit stream into the

EPCS16 serial EEPROM device, perform the following steps:

• Ensure that power is applied to the DE2 board

• Connect the supplied USB cable to the USB Blaster port on the DE2 board (see Figure 2.1)

• Configure the JTAG programming circuit by setting the RUN/PROG switch (on the left side

of the board) to the PROG position.

• The EPCS16 chip can now be programmed by using the Quartus II Programmer module to

select a configuration bit stream file with the .pof filename extension

• Once the programming operation is finished, set the RUN/PROG switch back to the RUN

position and then reset the board by turning the power switch off and back on; this action

causes the new configuration data in the EPCS16 device to be loaded into the FPGA chip.