.. include:: ../disclaimer-zh_CN.rst
:Original: Documentation/iio/ep93xx_adc.rst
:翻译:
司延腾 Yanteng Si <[email protected]>
.. _cn_iio_ep93xx_adc:
==================================
思睿逻辑 EP93xx 模拟数字转换器驱动
==================================
1. 概述
=======
该驱动同时适用于具有5通道模拟数字转换器的低端 (EP9301, Ep9302) 设备和10通道
触摸屏/模拟数字转换器的高端设备(EP9307, EP9312, EP9315)。
2. 通道编号
===========
EP9301和EP9302数据表定义了通道0..4的编号方案。虽然EP9307, EP9312和EP9315多
了3个通道(一共8个),但是编号并没有定义。所以说最后三个通道是随机编号的。
如果ep93xx_adc是IIO设备0,您将在以下位置找到条目
/sys/bus/iio/devices/iio:device0/:
+-----------------+---------------+
| sysfs 入口 | ball/pin 名称 |
+=================+===============+
| in_voltage0_raw | YM |
+-----------------+---------------+
| in_voltage1_raw | SXP |
+-----------------+---------------+
| in_voltage2_raw | SXM |
+-----------------+---------------+
| in_voltage3_raw | SYP |
+-----------------+---------------+
| in_voltage4_raw | SYM |
+-----------------+---------------+
| in_voltage5_raw | XP |
+-----------------+---------------+
| in_voltage6_raw | XM |
+-----------------+---------------+
| in_voltage7_raw | YP |
+-----------------+---------------+