如果CH340/CH341 在与其他器件进行串口通讯时出现乱码,首先需要确保双方串口设置完全相同,包括波特率、数据位、停止位、校验位等。其次需要明确双方收发误差率允许范围以及实际通讯时波特率误差。CH340/CH341 串口接收信号的允许波特率误差不小于 2%,CH340G/CH340T/CH340R 串口发送信号的波特率误差小于 0.3%,CH340C/CH3...
在串口应用中,当 CH340/CH341 与其他 IC 譬如 MCU 等芯片相互连接时,若有一方不需要供电工作时,要注意电流倒灌导致未供电的芯片开始工作或工作异常的情况,或者是通过串口下载程序时,MCU 需要复位以实现下载时,发现复位不成功,原因可能相同。解决办法:可在 CH340/CH341芯片的 发送引脚 TXD 上接一个反向二极管,然后...
解决办法:可在 CH340/CH341芯片的 发送引脚 TXD 上接一个反向二极管,然后再连接到对端 IC。在接收引脚上加一个限流电阻来防止对端 IC 对CH340/CH341倒灌电。 晶体以及电容的选用 对于CH340/CH341系列需要外接晶振的芯片,在选用晶振时如果选择 12MHz 的石英晶体,那么旁路电容一般选择 33pF 的独石或高频瓷片电容...
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If you are installing on a really old version of Windows such as Windows 98 make sure you install all the latest drivers for USB support, sometimes the unofficial Windows 98 Service packs are the best way. Devices using ESP8266 Chipset are often interfaced with the CH340 chip....
4.0-88通用内核后，ESP266开发板使用芯片CH340G ()停止与Espressif闪存工具"esptool“在我的ubuntu20...
CH340/CH341 串口接收信号的允许波特率误差不小于 2%，CH340G/CH340T/CH340R 串口发送信号的波特率误差...
App & System Services Drivers SerialDriverKit USBDriverKit DriverKit Zambetti Created Mar ’21 Replies 6 Boosts 1 Views 5.3k Participants 6 I have a CH340g connected to my M1 MacBook Air running the latest Big Sur 11.2.3.It appeared only one time in /dev, and now will not re-...
The CH340G is designed to be a plug-and-play solution, with no need for additional drivers or complex setup processes. It's a universal serial to USB driver that doesn't interfere with the target program's running, making it an ideal choice for those who value seamless integration. ...
Using the original CH340G chip, this series of chips is the USB-to-TTL chip recommended by STC. It will not cause incompatibility due to different drivers/different computers. With TXD and RXD indicators, it is easy to understand whether the product is working without the instrument. It can...