Pyserial 缓冲区的填充速度比我读取的快 [英] Pyserial buffer fills faster than I can read

问题描述

我正在以 921600 的波特率通过串口从微控制器读取数据.我正在读取大量 ASCII csv 数据，并且由于它的输入速度如此之快，缓冲区被填满，所有其余数据在我可以阅读它之前迷路了.我知道我可以手动编辑 serialwin32 的 pyserial 源代码以增加缓冲区大小，但我想知道是否还有其他方法可以解决?

I am reading data from a microcontroller via serial, at a baudrate of 921600. I'm reading a large amount of ASCII csv data, and since it comes in so fast, the buffer get's filled and all the rest of the data gets lost before I can read it. I know I could manually edit the pyserial source code for serialwin32 to increase the buffer size, but I was wondering if there is another way around it?

我只能估计我将收到的数据量，但大约有 200kB 的数据.

I can only estimate the amount of data I will receive, but it is somewhere around 200kB of data.

推荐答案

有一个接收缓冲区"滑块，可从设备管理器中的 com 端口的属性"页面访问.可以通过端口设置"​​选项卡上的高级"按钮找到它.

There's a "Receive Buffer" slider that's accessible from the com port's Properties Page in Device Manager. It is found by following the Advanced button on the "Port Settings" tab.

更多信息:

http://support.microsoft.com/kb/131016 在标题 接收缓冲区

http://tldp.org/HOWTO/Serial-HOWTO-4.html 在标题中断

尝试将其降低一两个档次.

Try knocking it down a notch or two.

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