STC51单片机 CH340下载电路
时间: 2023-10-21 07:25:36 浏览: 152
CH340自动上电 下载器PCB文件
STC51单片机的CH340下载电路是通过将CH340G的TXD引脚连接到单片机的RXD引脚,并将CH340G的RXD引脚连接到单片机的TXD引脚实现的。此外,CH340G的供电方式要根据具体情况来确定,如果使用5V供电,则不需要额外的操作,如果使用3.3V供电,则需要将第4脚连接到3.3V。下载程序时,STC51单片机需要断电再重新上电以完成下载过程。在整个电路图中,只有一个芯片CH340,所以我们首先需要参考CH340的数据手册来了解它所需的引脚功能。然后,根据数据手册中的引脚连接信息,将其与STC51单片机的引脚进行连接。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [基于STC89C51单片机,CH340芯片的下载电路](https://blog.csdn.net/qq_46212154/article/details/105634059)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [STC51单片机自动ISP下载电路设计 - ch340g单片机下载程序电路原理](https://blog.csdn.net/weixin_39861920/article/details/111833003)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]
阅读全文