【MA35D1】Eadc如何使用Buffer data access

以通道5为例

# cd /sys/bus/iio/devices/

# echo 1 > iio_sysfs_trigger/add_trigger

# cat trigger0/name > iio:device1/trigger/current_trigger

# echo 100 > iio:device1/buffer/length

# echo 1 > iio:device1/scan_elements/in_voltage5_en

# echo 1 > iio:device1/buffer/enable

# hexdump -v -e '"iio0:" 100/2 "%2x " "\n"' /dev/iio\:device1

iio0:fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff fff

^C

# echo 0 > iio:device1/buffer/enable

# echo 1 > iio:device1/buffer/enable

# hexdump -v -e '"iio0:" 100/2 "%2x " "\n"' /dev/iio\:device1

iio0:627 62b 626 62b 628 62a 627 62c 627 62a 627 62a 629 62b 627 62a 627 62b 627 62b 627 62b 627 62b 627 62b 627 62b 627 62b 626 62b 627 62b 626 62b 628 62b 627 62c 627 62a 626 62b 626 62b 626 62a 627 62b 627 62a 627 62a 627 62a 627 62a 627 62a 628 62a 627 62a 628 62a 627 62a 627 62b 627 62b 627 62c 627 62b 625 62a 627 62c 627 62a 626 62c 626 62b 627 62b 627 62b 627 62a 627 62a 626 62a 627 62a 627 62a