Sigma DE2-70 manual Toggle switch setting for audio recorder and player

DE2-70 User Manual

•Load the Software Execution File into FPGA. (note *1)

•Configure audio with the toggle switches.

•Press KEY3 on the DE2-70 board to start/stop audio recoding (note *2)

•Press KEY2 on the DE2-70 board to start/stop audio playing (note *3)

Note:

(1). Execute DE2_70_AUDIO\demo batch\audio.bat will download .sof and .elf files.

(2). Recording process will stop if audio buffer is full.

(3). Playing process will stop if audio data is played completely.

Toggle Switches	0 – DOWN Position
SW0	Audio is from MIC
SW1	Disable MIC Boost
SW2	Disable Zero-cross Detection

1 – UP Position

Audio is from LINE-IN

Enable MIC Boost

Enable Zero-cross Detection

SW5		SW4	SW3
(0 – DOWN;		(0 – DOWN;	(0 – DOWN;	Sample Rate
1- UP)		1-UP)	1-UP)
0		0	0	96K
0		0	1	48K
0		1	0	44.1K
0		1	1	32K
1		0	0	8K
	Unlisted combination			96K

Table 6.4. Toggle switch setting for audio recorder and player.

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