Specifications

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[root@OMAP3EVM /]# adc_test -d /dev/adc7

The channel: /dev/adc0 0x0fff data: 3.2990 V

Note:

 For pin2, the command is "adc_test -d /dev/adc6". When the pin is empty, the

digit voltage is 2.2V.

4.3.11 SD Card Test

1. Connect to the SD card to the SOC8200 board, if the following

information appears on the debug port, the SD card has been

detected.

mmc0: new high speed SD card at address 0001

mmcblk0: mmc0:0001 APPSD 1.85 GiB

mmcblk0: p1

2. Input the following commands to mount the SD card.

[root@OMAP3EVM /]# mount -t vfat /dev/mmcblk0p1 /mnt

[root@OMAP3EVM /]# ls /mnt

Windows Embedded CE 6.0 R2 NCP linux-2.6.24

3. Umount the SD card.

[root@OMAP3EVM /]# umount /mnt

4.3.12 Buzzer Test

1. Enable the buzzer:

[root@OMAP3EVM /]# echo 1 > /sys/class/misc/beep/val

2. Disable the buzzer:

[root@OMAP3EVM /]# echo 0 > /sys/class/misc/beep/val

4.3.13 Audio Test

The board has an audio input and output interface, and we have alsa-utils

audio test tools in the filesystem, users can enter the following commands

for a test:

1. Recording Test：