【AT32F421测评】+ 环境搭建及Hello World
本帖最后由 dmzdmz666666 于 2021-4-21 22:57 编辑<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">开发板收到了</font>,也开箱完了,我们可以正式的开发这款开放板了,首先我先去找一下官方提供的资料,这样可以加速我们的开发,这里插一句,像国外半导体厂家意法半导体的STM32它的一大优势是在国内的资料比较丰富,生态比较好,当然了一方面是国内开发使用的时间较长,另一方面是人家在本土化方面确实下了不少功夫,国内的厂家在本土化方面是有优势的,所以国产厂家不仅要提高自身产品的实力,还要在生态方面要下功夫,让开发者更快的入门和上手,令人欣慰的时,雅特力在资料这方面没让我失望,</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">进入官网的</font>AT32技术论坛</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">进入第二条</font></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">这里就有提供比较全的资料包</font>(应该是官方的吧)附上网址</span></span><span style="font-size:10.5000pt"><span style="font-family:宋体">https://bbs.21ic.com/icview-3066948-1-1.html</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">下载好后的资料包如下</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">开发主要用的是</font>BSP(板级开发包) Datasheet(数据手册)Reference Manual(参考手册)</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">其他的都是一些工具或者电路图</font>,用到再说</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">下载好资料</font>,正式开始搭建开发环境,这里我选用较熟悉的ARM公司的MDK 5来开发,软件安装啥的我就不多讲了.</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">第一步</font>,我们需要安装对应的芯片器件包,使MDK 5支持开发雅特力的单片机,找到Pack,选择里面的</span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-style:italic">Pack_Keil_AT32F4xx_V1.3.6.ZIP,</span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-style:normal"><font face="黑体">解压</font></span></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体">MDK 5选择第一个,KEIL 4是选择第二个,双击就可以完成.</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">第二步</font>,安装AT_LINK调试器的对应驱动,选择Tool,找到里面的AT_Link_20210127_1.zip,解压,如下图,</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">选择第四个</font>,然后按提示进行安装,这里雅特力官方提供了用户手册(UM0004_AT_Link_User_Manual_ZH_V1.0.8,pdf),里面讲的很详细,点赞.<font face="黑体">正确做完该有的步骤</font>,当将开发板连上电脑,MDK 5上的Debug -> Settings中会出现如下展示,<font face="黑体">说明已经正确连接了</font>.至此,开发环境就已经搭建好了.</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">接下来</font>,我们要新建一个Hello World工程了,</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">第一步</font>,新建一个文件夹,这里取名叫AT32_Demo,然后在该文件夹新建以下五个子文件夹:</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">BSP</span></span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"> (存放at32_board.c及头文件,这里我理解的是官方为板子配套的一些常用函数,如延时函数,板载LED函数,板载按钮函数,串口打印函数等)</span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">CMSIS</span></span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">(存放是符合 CMSIS 规范的一些文件,如M4核内外设访问层代码，DSP库,安全库等)</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">FWLIB</span></span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">(存放AT32的与内外设相关的库函数)</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">HARDWARE</span></span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">(存放用户自己定义的一些函数)</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">USER</span></span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">(存放主函数和at32f4xx_it.c及头文件)</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">新建好后</font>,我们按规定将一些文件放入子文件夹中,我们打开我们之前下载的资料包,依次打开</span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">BSP</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"> -></span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">AT32F4xx_StdPeriph_Lib_V1.3.0(解压)->Libraries ->AT32F4xx_StdPeriph_Driver</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">,然后将该文件夹中的文件复制到我们的子文件夹</span></span></span><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">FWLIB</span></span></span></span></b><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:bold">;</span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">然后将与</font></span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">AT32F4xx_StdPeriph_Driver</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">并列的</font>CMSIS中的文件复制到我们的子文件夹</span></span></span><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">CMSIS</span></span></span></span></b><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:bold">;</span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">然后依次打开</font></span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">BSP ->AT32F4xx_StdPeriph_Lib_V1.3.0(解压)->Project ->AT32_Board</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">,将里面的文件复制到我们的子文件夹</span></span></span><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="color:#ff0000"><span style="font-weight:bold">BSP</span></span></span></span></b><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:bold">;</span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">依次打开</font>B</span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">SP ->AT32F4xx_StdPeriph_Lib_V1.3.0(解压) ->Project ->AT_START_F421->Templates</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">,将里面的</span></span></span><i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><span style="font-style:italic">at32f4xx_it.c</span></span></span></span></i><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">及对应头文件复制到我们的子文件夹</font></span></span></span><b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:bold">USER,</span></span></span></b><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">同时在里面添加</font>main.c,至此,工程配套文件已经构建完毕(这个可以按照自己的意愿添加到不同文件,但一个工程必须要有我上述所说的所有文件)</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal"><font face="黑体">第二步</font>,打开MDK 5,按照正常流程新建工程,这里我就不多讲了,但这里我要说一些细节,首先,要打开魔法棒,打开C/C++,在Define中填入</span></span></span><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">”</span></span></span><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">AT32F421C8T7,USE_STDPERIPH_DRIVER,USE_FULL_ASSERT,AT_START_F421_V1_0</span></span></span><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">”</span></span></span><span style="font-size:16.0000pt"><span style="font-family:黑体"><span style="font-weight:normal">,同时,要在Include Paths中包含所有的路径,防止程序报错,如下图所示</span></span></span></span></span></p>
<p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">下图就是我们工程的结构和所包含的文件</font></span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">打开</font>main函数,具体的程序我放在压缩包里,这里只讲重要的,因为要用到串口1来打印,我们要配置USART 1,雅特力官方在at32_board.c提供了UART_Print_Init(uint32_t bound)函数,这个就可以初始串口1,但是在这里,我选择参照该函数再写一个函数USART_Configuration(void)(个人习惯,想统一一下风格),将所有的串口初始化配置写到这里</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">这里可以不开启串口中断</font>.同时在</span></span><span style="font-size:16.0000pt"><span style="font-family:黑体">at32_board.c也提供了板载按键的初始化函数和状态读取函数,这里我们选择直接调用,最后的主函数如下图所示,</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">当按下</font>USER按钮,串口打印Hello World!,</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">这里说明一下</font>,我是直接使用AT-LINK-EZ的虚拟串口功能,这样方便一些.</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:16.0000pt"><span style="font-family:黑体"><font face="黑体">好</font>,第二篇评测结束.</span></span></span></span></p>
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<p>加油，分享的东西很给力，也很实用，期待后面的测评。</p>
<p>官方在at32_board.c有这个UART_Print_Init(uint32_t bound)串口打印函数的</p>
<p>好详细，谢谢分享！</p>
请问虚拟串口是安装哪个软件啊, 我安装了, 似乎不行, 请指点下, 谢谢 <p>文章不错，但是为啥字体这么难看。。。</p>
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