如何扩展pyserial的输入缓冲区大小 [英] How to expand input buffer size of pyserial

问题描述

我想通过串口与电话通信。将一些命令写入电话后，我使用了 ser.read（ser.inWaiting（））来获取其返回值，但我总是总得到 1020个字节个字符，实际上，期望的返回值应该超过 50KB 。

I want to communicate with the phone via serial port. After writing some command to phone, I used ser.read(ser.inWaiting()) to get its return value, but I always got total 1020 bytes of characters, and actually, the desired returns is supposed to be over 50KB.

我尝试设置 ser.read（50000），但是解释器将挂起。

I have tried to set ser.read(50000), but the interpreter will hang on.

如何我会扩展输入缓冲区以一次获得所有返回值吗？

How would I expand the input buffer to get all of the returns at once?

推荐答案

如果在Windows平台上运行代码，只需在代码中添加一行即可。

If you run your code on Windows platform, you simply need to add a line in your code.

ser.set_buffer_size(rx_size = 12800, tx_size = 12800)

其中12800是我选择的任意数字。您可以使接收（rx）和发送（tx）缓冲区最大为2147483647（等于2 ^ 31-1）

Where 12800 is an arbitrary number I chose. You can make receiving(rx) and transmitting(tx) buffer as big as 2147483647 (equal to 2^31 - 1)

这将允许您扩展输入缓冲区

this will allow you to expand the input buffer to get all of the returns at once.

请注意，由于这是建议，因此仅对某些驾驶员有效。该驱动程序可能不会接受您的建议，并会保留其原始缓冲区大小。

Be aware that this will work only with some drivers since it is a recommendation. The driver might not take your recommendation and will stick with its' original buffer size.

这篇关于如何扩展pyserial的输入缓冲区大小的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！