Altera Nios Development Board Bedienungsanleitung Seite 26

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1–18 Altera Corporation
Nios Development Board Reference Manual, Cyclone Edition December 2004
Dual 7-Segment Display
Figure 1–14. Console Serial Port Connector - J19
Figure 1–15. Debug Serial Port Connector – J27
Dual 7-Segment
Display
U8 and U9 are connected to the Cyclone device so that each segment is
individually controlled by a general-purpose I/O pin. When the Cyclone
pin drives logic 0, the corresponding LED turns on. See Figure 1–16 for
Cyclone device pin-out details.
Figure 1–16. Dual-7-Segment Display
The factory-programmed Nios II reference design includes parallel
input/output (PIO) registers and logic for driving this display.
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