慕课嵌入式开发及应用(第四章.串行外设接口SPI模块)

心已赠人 2023-07-18 12:44 133阅读 0赞

### 慕课苏州大学.嵌入式开发及应用.第四章.较复杂通信模块.串行外设接口SPI模块 ###

*  0 目录
 *  4 较复杂通信模块
 *   *  4.1 串行外设接口SPI模块
     *   *  4.1.1 课堂重点
         *  4.1.2 测试与作业
 *  5 下一章

# 0 目录 #

# 4 较复杂通信模块 #

## 4.1 串行外设接口SPI模块 ##

### 4.1.1 课堂重点 ###

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### 4.1.2 测试与作业 ###

> 关于SPI的时钟极性与相位的选择，"CPOL=0，CPHA=1"表示  
> A.空闲电平低电平，上升沿取数  
> B.空闲电平低电平，下降沿取数  
> C.空闲电平高电平，下降沿取数  
> D.空闲电平高电平，上升沿取数  
> 正确答案：B

> 1下列哪些是SPI构件功能函数的参数：  
> A.模块号No  
> B.SPI主从机选择MSTR  
> C.波特率BaudRate  
> D.时钟极性CPOL与相位CPHA  
> 正确答案：A、B、C、D

> 2SPI通信中，主机和从机必须使用同样的时钟极性与时钟相位，才能正常通信。  
> A.B.  
> 正确答案：对

> 3串行外设接口SPI是原摩托罗拉公司推出的一种（ ）通讯接口。  
> 正确答案：同步串行

# 5 下一章 #

**博客地址:**

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