uuxz99 发表于 2020-10-5 16:47

【AT-START-F403A测评】之三freeRTOS系统基于IAR环境外部QSPI flash(SPIM)EN25QH...

本帖最后由 uuxz99 于 2020-10-5 16:54 编辑

<p class="Default" style="text-indent:24.1pt"><span style="font-size:12pt"><span style="layout-grid-mode:char"><span style="font-family:Arial,sans-serif"><span style="color:black"><span lang="EN-US" style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">AT-START-F403A</span><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">评估板搭载了外置16M字节NOR QSPI Flash(</span> EN25QH128A<span lang="EN-US" style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">)</span><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">。足够大的容量和速度能够适合很多应用,在freeRTOS环境下做一个粗浅测试,因测试环境简单结果可能有谬误,仅供参考。</span></span></span></span></span></p>

<p style="text-align:justify; margin-top:22px; margin-bottom:22px"><span style="font-size:20px;"><strong><span style="font-family:Microsoft YaHei;"><span style="line-height:normal"><span lang="EN-US">1.SPIM</span>初始化:</span></span></strong></span>&nbsp; &nbsp; &nbsp; &nbsp;</p>

<ol>
        <li style="list-style-type:none"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">1.1端口初始化</span></span></span></span></span></li>
</ol>

<p align="left" style="margin-left:28px; text-align:left; text-indent:-6.95pt"></p>

<p align="left" style="margin-left:28px; text-align:left; text-indent:-6.95pt"></p>

<p style="list-style-type:none"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">&nbsp; &nbsp; &nbsp; &nbsp;1.2SPIM</span></span><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">配置flash</span></span></span></span></span></p>

<ul style="margin-left: 40px;">
        <li style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">配置外部flash器件类类型</span></span></span></span></span></li>
        <li style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">无加密设置</span></span></span></span></span></li>
        <li style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">测试样板设置</span></span></span></span></span></li>
</ul>

<p align="left" style="margin-left:28px; text-align:left; text-indent:-6.95pt"><strong><span style="font-size:22pt"><span style="line-height:normal"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:14.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">2. SPIM</span></span><span style="font-size:14.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">测试:</span></span></span></span></span></span></strong></p>

<p style="text-indent:21.25pt; text-align:justify"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">本次测试是完全应用环境下的测试,并非出于完全性指标测试,测试任务(线程)每秒启动一次测试循环,每次循环8个sector(4K)。每次测试过程是擦除扇区-&gt;逐字写入(4字节写入直到扇区满)-&gt;读扇区-&gt;校验。</span></span></span></span></span><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">由于外部flash是104MHz操作频率,因此将AHB降到200MHz,以便外部flash操作在最好性能下。</span></span></span></span></span></p>

<p>&nbsp;</p>

<p align="left" style="margin-left:28px; text-align:left; text-indent:-6.95pt"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">2.1 SPIM</span></span></b><b><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">写入测试方法:</span></span></b></span></span></span></p>

<p align="left" style="margin-left:28px; text-align:left"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">写入4K样本数据计算完成写入所需时间。数据按照4字节写入操作,整个写入时间包括如下</span></span></span></span></span></p>

<ul>
        <li>&nbsp; <span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">扇区擦除时间。</span></span></span></span></span></li>
        <li style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">扇区编程时间。</span></span></span></span></span></li>
        <li style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">flash状态控制等时间。</span></span></span></span></span></li>
</ul>

<p style="text-align: left;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">&nbsp; &nbsp; &nbsp; &nbsp;2.2 SPIM</span></span></b><b><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">读取测试方法:</span></span></b></span></span></span></p>

<p><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">读取刚才写入4K样本数据所需时间。读取按照4字节读出操作,整个读出时间包括如下:</span></span></span></span></span>&nbsp; &nbsp; &nbsp; &nbsp;</p>

<ul>
        <li style="text-indent: 24pt;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">读取前检查外部flash状态</span></span></span></span></span></li>
        <li style="text-indent: 24pt;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">读取数据。</span></span></span></span></span></li>
</ul>

<p style="margin-top: 22px; margin-bottom: 22px;"><strong><span style="font-size:22pt"><span style="line-height:normal"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:14.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">3. SPIM粗测结果</span></span></span></span></span></span></strong></p>

<p style="text-align:left"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">3.1 需要说明固件库相关SPIM函数操作命名FLASH_ErasePage中的page,与器件page是不同概念,器件手册说明了page是不可擦除操作,但可以编程操作,函数page对应器件的是器件sector,固件操作就是按照sector 4K来的,使用中可能需要注意。</span></span></span></span></span></p>

<p><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">3.2&nbsp;测试结果</span></span></span></span></span></p>

<p style="list-style-type:none"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">测试结果如下图所示。</span></span></span></span></span></p>

<p style="text-align:left"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">3.3 测试结果说明</span></span></span></span></span></p>

<p style="list-style-type: none; margin-left: 40px;"><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">3.3.1 扇区写入时间约在50-60ms,其中扇区擦除用时占比80%以上,编程写入时间约在8毫秒,其余时间约为1-3毫秒为系统状态查询</span></span><m:omath><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;"><m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr>、</m:r></span></span></m:omath></span></span></span><span style="font-size:10.5pt"><span style="layout-grid-mode:char"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">控制及测试本身和信息打印等开销。</span></span></span></span></span></p>

<p style="list-style-type: none; margin-left: 40px;"></p>

<p style="list-style-type: none; margin-left: 40px;">3.3.2<span style="font-size:12.0pt"><span style="font-family:&quot;微软雅黑&quot;,&quot;sans-serif&quot;">扇区读取速度约在1毫秒及以内</span></span></p>

<p>&nbsp;</p>

okhxyyo 发表于 2020-10-9 15:06

<p>雅特力AT-START-F403A测评汇总</p>

<p><a href="https://bbs.eeworld.com.cn/thread-1143018-1-1.html" target="_blank">https://bbs.eeworld.com.cn/thread-1143018-1-1.html</a></p>
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