Altera DE2-115 Manual de usuario descargar pdf (Pagina 35)

Figure 4-8 Connections between the slide switches and Cyclone IV E FPGA

There are 27 user-controllable LEDs on the DE2-115 board. Eighteen red LEDs are situated above

the 18 Slide switches, and eight green LEDs are found above the push-button switches (the 9th

green LED is in the middle of the 7-segment displays). Each LED is driven directly by a pin on the

Cyclone IV E FPGA; driving its associated pin to a high logic level turns the LED on, and driving

the pin low turns it off. Figure 4-9 shows the connections between LEDs and Cyclone IV E FPGA.

Figure 4-9 Connections between the LEDs and Cyclone IV E FPGA

A list of the pin names on the Cyclone IV E FPGA that are connected to the slide switches is given

in Table 4-1. Similarly, the pins used to connect to the push-button switches and LEDs are

displayed in Table 4-2 and Table 4-3, respectively.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 120 121

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Altera DE2-115 Manual de usuario Pagina 35