PureData 语言 给 serial 添加 eol rn 识别换行符 正确读取完整数据

PureData阿木 发布于 5 天前 4 次阅读

阿木博主一句话概括：深入解析PureData语言中“serial”模块的换行符识别与处理

阿木博主为你简单介绍：
PureData是一种基于Max/MSP的实时音频和媒体处理语言，广泛应用于音乐制作、音频处理和交互式艺术等领域。在PureData中，使用“serial”模块进行串行通信时，正确识别和处理换行符（eol r）对于确保数据的完整性和准确性至关重要。本文将深入探讨PureData语言中“serial”模块的换行符识别与处理技术，并提供相应的代码实现。

一、
在PureData中，通过“serial”模块可以实现与外部设备或软件的串行通信。在进行数据交换时，换行符（eol r）是一个常见的分隔符，用于标识数据的结束。由于不同操作系统和编程语言的差异，换行符的表示方式可能不同。在PureData中正确识别和处理换行符是确保数据完整读取的关键。

二、PureData语言中的“serial”模块
“serial”模块是PureData中用于串行通信的核心模块，它允许用户读取和写入串行端口的数据。以下是一些常用的“serial”模块命令：

- open: 打开串行端口。
- close: 关闭串行端口。
- read: 从串行端口读取数据。
- write: 向串行端口写入数据。

三、换行符识别与处理
1. 换行符的表示
在不同的操作系统和编程语言中，换行符的表示可能不同。以下是几种常见的换行符表示方式：

- Windows: r
- Linux/Mac:
- Unix: r

2. PureData中的换行符处理
在PureData中，可以使用以下方法来识别和处理换行符：

- 使用“line”对象：将接收到的数据传递给“line”对象，它会自动识别并处理换行符。
- 使用“split”对象：将接收到的数据传递给“split”对象，并指定分隔符为换行符，从而将数据分割成多个部分。

以下是一个使用“line”对象的示例代码：

```pd
N canvas 0 0 450 300 serial_eol 0;
X obj 50 50 serial;
X obj 50 100 line;
X obj 50 150 print;
X obj 50 200 close;
X msg 50 50 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2 0 3 0;
X connect 3 0 4 0;
X connect 4 0 0 0;
X msg 50 100 open 1;
X connect 0 0 1 0;
X connect 1 0 2 0;
X connect 2