![](https://csdnimg.cn/release/download_crawler_static/86822969/bg3.jpg)
测量内部器件参数( A D STAT 命令) ............................................................................................................... 30
精度检查 ......................................................................................................................................................... 31
多路复用器(MUX)译码器检查 ..................................................................................................................... 31
数字滤波器检查 ............................................................................................................................................. 31
ADC 清除命令 ................................................................................................................................................ 32
导线开路检查(ADOW 命令) ......................................................................................................................... 32
热停机 ..................................................................................................................................................................... 34
版本代码 ................................................................................................................................................................. 34
看门狗和软件放电定时器 ..................................................................................................................................... 34
采用 GPIO 的 I2C/SPI 主控器 ............................................................................................................................... 36
COMM 寄存器 ............................................................................................................................................... 36
COMM 命令 ................................................................................................................................................... 38
串行接口概述 ................................................................................................................................................................. 39
四线式串行外设接口(SPI)物理层外部连接 ......................................................................................................... 39
定时 ................................................................................................................................................................. 39
两线式隔离型接口(隔离 SPI)物理层 .................................................................................................................... 40
外部连接 ......................................................................................................................................................... 41
选择偏置电阻器 ............................................................................................................................................. 41
隔离 SPI 脉冲细节 ......................................................................................................................................... 42
端口 A 针对 SPI 配置时 MT9804 的操作 ..................................................................................................... 43
唤醒串行接口 ................................................................................................................................................. 44
数据链路层 ............................................................................................................................................................. 45
包误差检测码 ................................................................................................................................................. 45
广播命令 ......................................................................................................................................................... 48
轮询(polling command)方法........................................................................................................................... 48
总线协议 ................................................................................................................................................................. 49
编程实例 ......................................................................................................................................................... 57
唤醒串行接口 ................................................................................................................................................. 57
写配置寄存器 ................................................................................................................................................. 58
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