使用Free Pascal开发STM32程序

本文介绍了如何使用Free Pascal开发STM32程序,详细阐述了开发环境的准备、代码编写、使用STM32CubeMX生成初始化代码及编译烧录过程。通过一个LED闪烁的实例,展示了Free Pascal在STM32嵌入式开发中的应用。

在嵌入式系统开发中,STM32微控制器是非常受欢迎的选择之一。而Free Pascal则是一种强大的、跨平台的编程语言,它可以用于开发各种应用程序,包括嵌入式系统。本文将介绍如何使用Free Pascal开发STM32程序,并提供相应的源代码示例。

首先,我们需要准备一些开发环境。你可以从Free Pascal官方网站(https://www.freepascal.org/ ↗)下载并安装Free Pascal编译器。此外,你还需要安装STM32CubeMX,这是一个用于配置STM32微控制器的图形化工具。你可以从STMicroelectronics官方网站(https://www.st.com/ ↗)下载并安装该工具。

一旦你完成了开发环境的准备,我们可以开始编写STM32程序了。下面是一个简单的示例,演示了如何使用Free Pascal编写一个LED闪烁的程序。

program STM32_LED_Blink;

{$mode objfpc}
{$H+}

uses
  stm32f1xx_hal,
  stm32f1xx_hal_gpio,
  stm32f1xx_hal_rcc,
  stm32f1xx_hal_cortex,
  cortexm3;

var
  GPIO_InitStruct: GPIO_InitTypeDef;

begin
  // 初始化HAL库
  HAL_Init;

  // 配置系统时钟
  Sy
兼容turbo pascal以及free pascal的简易下拉菜单程序 此包是在原dos下的基于turbo_pascal编程环境(未用turbo_vision)的下拉菜单基础上进一步简化、优化而来。原来的程序支持鼠标操作、dos下环境操作、内存操作、汇编(asm)函数或过程、dos下的汉字系统等。由于freepascal对这些特性中的大部分不能很好地支持,所以本次对这些特性全部删除。精简后的系统同时支持TurboPascalFreePascal。 文件简介: 1、munit.pas----下拉菜单单元源程序 2、m.pas------通用下拉菜单程序(菜单要实现的功能由menu.mnu文本文件定义) 3、menu.mnu ----按一定格式由用户自定义的“菜单文件”,含主菜单、子菜单个数、子菜单宽度、子菜单、子菜单调用程序等。其格式要求见menuconv.exe的执行显示信息 4、menuconv.pas --自动将“menu.mnu”文件转化为“menu.pas”并自动编译生成“menu.exe”的源程序。转化后的menu.exe文件可独立运行,不再依赖menu.mnu文件。也可借助这个转换程序先生成一个菜单程序框架,再将“run(子菜单调用程序);”语句扩展成自已要实现的功能即可,这样可不必去关注munit单元的使用方法,简化编程。 5、arjj.pas ----给压缩程序arj.exe加壳(菜单)的程序源代码。菜单munit单元使用示例。 6、arj.exe-----压缩、解压缩程序 7、tpc.exe-----TurboPascal7.0编译程序 8、turbo.tpl----TurboPascal7.0编译时要用到的链接库文件 9、其他文件:均为用tpc.exe或fpc.exe编译生成的“单元文件”、“exe文件”或“临时文件”。
超强大、好用的Pascal语言解释器:RemObjects Pascal Script,支持以下特性: Pascal Script is a widely-used set of components for Delphi that makes it easy to add Pascal-based scripting support to your applications, so that they can extend or control your application with custom scripts. Get Pascal Script Free Now Start using Pascal Script now and download your free copy, including full source code. Pascal Script for Delphi Pascal Script is a free scripting engine that allows you to use most of the Object Pascal language within your Delphi or Free Pascal projects at runtime. Written completely in Delphi, it is composed of a set of units that can be compiled into your executable, eliminating the need to distribute any external files. Pascal Script started out as a need for a good working script, when there were none available at the time. Why use a scripting engine? A scripting engine allows an end user to customize an application to his or her needs without having to recompile it. In addition, you can update your applications by just sending a new script file that could even be compiled to byte code, which cannot easily be transformed back to source code. Pascal Script includes the following features: Variables, Constants Standard language constructs: Begin/End If/Then/Else For/To/Downto/Do Case x Of Repeat/Until While Uses Exit Continue Break Functions inside the script Calling any external DLL function (no special function headers required) Calling registered external methods All common types like Byte, Shortint, Char, Word, SmallInt, Cardinal, Longint, Integer, String, Real, Double, Single, Extended, Boolean, Array, Record, Enumerations, Variants Allows the importing and use of classes, with events, properties, methods and constructors Allows the importing and use of interface and their members Allows IDispatch dynamic method invocation through Variant Assignment of script functions to Delphi events Uses byte code as an intermediate format and allows storing and reloading compiled scripts Easy to use component version Support for include files Support for compiler defines Capability to call RemObjects SDK Services from within scripts Pascal Script includes a tool to create headers for importing classes and interfaces
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