DE2-70 Manual - Computation Structures Group
DE2-70 Manual - Computation Structures Group
DE2-70 Manual - Computation Structures Group
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Figure 3.12. Audio Recording and Saving as a WAV file.<br />
23<br />
<strong>DE2</strong>-<strong>70</strong> User <strong>Manual</strong><br />
To record audio sound from LINE-IN port, please connect an audio source to the LINE-IN port on<br />
the board. The operation is as same as recording audio from MIC.<br />
3.9 Overall Structure of the <strong>DE2</strong>-<strong>70</strong> Control Panel<br />
The <strong>DE2</strong>-<strong>70</strong> Control Panel is based on a NIOS II system running in the Cyclone II FPGA with the<br />
SDRAM-U2 or SSRAM. The software part is implemented in C code; the hardware part is<br />
implemented in Verilog code with SOPC builder, which makes it possible for a knowledgeable user<br />
to change the functionality of the Control Panel. The code is located inside the<br />
<strong>DE2</strong>_<strong>70</strong>_demonstrations directory on the <strong>DE2</strong> System CD-ROM.<br />
To run the Control Panel, users must first configure it as explained in Section 3.1. Figure 3.13<br />
depicts the structure of the Control Panel. Each input/output device is controlled by the NIOS II<br />
Processor instantiated in the FPGA chip. The communication with the PC is done via the USB<br />
Blaster link. The NIOS II interprets the commands sent from the PC and performs the<br />
corresponding actions.
Change language