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rtx51's Introduction

RTX51有两个版本TINY和FULL,后者可替换选择很多,在此不收录。

RTX51 Tiny是一种实时操作系统(RTOS),是运行在8051内核上的RTOS,可以用它来建立多个任务(函数)同时执行的应用。RTX51 Tiny运行于大多数8051兼容的器件及其变种上。

非占先或多优先级的实时操作系统,是一个平级的时间片轮询实时操作系统,所有的任务平等运行。

RTX51 Tiny的程序用标准的C语言构造,由Keil C51 C编译器编译。用户可以很容易的定义任务函数,而不需要进行复杂的栈和变量结构配置,只需包含一个指定的头文件。RTX51TNY.LIB和RTX51BT.LIB库文件必须保存于库路径下,通常,该路径是"KEIL"C51"LIB文件夹。RTX51TNY.H必须保存在包含路径下,通常是"KEIL"C51"INC文件夹。

关键特性

  • 最大任务数:16
  • 最大活动任务:16
  • 代码空间需求:900字节最大
  • 数据空间需求:7字节
  • 栈空间需求:3字节/任务
  • 系统时钟因子:1000~65535
  • 中断等待:20个周期或更少
  • 上下文切换时间:100~700个周期

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