I2C Test; Sd/Mmc Card/Usb/Spiflash; Device Routes; Usb Disk Test - Advantech RSB-3730 User Manual

b. Record and playback:
# arecord -t wav -c 1 -r 44100 -d 5 /tmp/mic.wav
# aplay /tmp/mic.wav
2
3.6 I c Test
2
Check the i c device (audio codec: 0-000a).
2
I c set and get
3.7

SD/MMC Card/USB/SpiFlash

3.7.1

Device Routes

eMMC: /dev/mmcblk2
SD: /dev/mmcblk1
QSPI: /dev/mtd0
For example: SD test
# dd if=/dev/urandom of=data bs=1 count=1024
# dd if=/dev/mmcblk1 of=backup bs=1 count=1024 skip=4096
# dd if=data of=/dev/mmcblk1 bs=1 seek=4096
# dd if=/dev/mmcblk1 of=data1 bs=1 count=1024 skip=4096
# diff data data1
# dd if=backup of=/dev/mmcblk1 bs=1 seek=4096
3.7.2

USB Disk Test

RSB-3730 User Manual 34