参数资料
型号: P0528
厂商: Terasic Technologies Inc
文件页数: 52/56页
文件大小: 0K
描述: BOARD DEV DE1 ALTERA
标准包装: 1
类型: FPGA
适用于相关产品: Cyclone II 2C20
所含物品: DE1 板,电源,USB 线缆,塑料盖和软件
配用: P0033-ND - BOARD ADAPTER HSMC TO GPIO
P0006-ND - BOARD ADAPTER THDB-SUM
P0001-ND - MODULE DIGITAL CAMERA 5MP (D5M)
P0307-ND - KIT DEV 4.3" LCD TOUCH PANEL
相关产品: 544-2107-ND - IC CYCLONE II FPGA 20K 240-PQFP
544-2106-ND - IC CYCLONE II FPGA 20K 240-PQFP
544-2105-ND - IC CYCLONE II FPGA 20K 484-FBGA
544-2104-ND - IC CYCLONE II FPGA 20K 484-FBGA
544-2103-ND - IC CYCLONE II FPGA 20K 256-FBGA
544-2102-ND - IC CYCLONE II FPGA 20K 256-FBGA
544-2101-ND - IC CYCLONE II FPGA 20K 484-FBGA
544-1781-ND - IC CYCLONE II FPGA 20K 256-FBGA
544-1670-ND - IC CYCLONE II FPGA 20K 484-FBGA
544-1669-ND - IC CYCLONE II FPGA 20K 484-FBGA
更多...
其它名称: DE1

DE1 User Manual
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Figure 5.3. Usage of the Key
5.3 A Karaoke Machine
This demonstration uses the microphone-in, line-in, and line-out ports on the DE1 board to create a
Karaoke Machine application. The Wolfson WM8731 audio CODEC is configured in the master
mode, where the audio CODEC generates AD/DA serial bit clock (BCK) and the left/right channel
clock (LRCK) automatically. As indicated in Figure 5.7, the I2C interface is used to configure the
Audio CODEC. The sample rate and gain of the CODEC are set in this manner, and the data input
from the line-in port is then mixed with the microphone-in port and the result is sent to the line-out
port.
For this demonstration the sample rate is set to 48 kHz. Pressing the pushbutton KEY0 reconfigures
the gain of the audio CODEC via the I2C bus, cycling through one of the ten predefined gains
(volume levels) provided by the device.
Figure 5.7. Block diagram of the Karaoke Machine demonstration.
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