描述
<div class="document">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">注:* 为必填项</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><strong><span style="color: #0093e6;">请在报名阶段填写 ↓</span></strong></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3>
<hr class="horizontal-splitline normal-bold-2">
<p>作为一个BIOS工程师,和 SPINOR 打交道是每天必不可少的工作。如同正经的硬件工程师一定会使用福禄克的万用表一样,业内BIOS工程师公认的烧录器是 Dedi Prog 出品的 SF100/SF600这种。这系列烧录器具有速度快、兼容性强、广泛支持各种芯片等等优点。唯一每种不足的是:价格太高。最基础的SF100 也要 1800人民币。</p>
<p>前一段时间,南京沁恒(就是生产CH340那家公司)推出了一款 USB 转SPI 芯片:CH347。它是一款高速USB总线转接芯片,通过USB总线提供异步串口、I2C同步串行接口、SPI同步串行接口和JTAG接口等。这次我们使用他的 USB 转 SPI 功能实现 SPI NOR 芯片的烧写。</p>
<p>设计上除了支持 3.3V的SPI NOR 还设计支持 1.8V 的芯片,当然如果你感兴趣还可以修改我这个项目支持更多的电压选择。 为了实现这个功能选择了 TXS0108EPWR 来进行电平转换,同时使用了一个 CH552 控制显示装填的LED 和SPI 电平。</p>
<p>烧写速度以 GD25LQ128C 16MB 为例,全片擦除: 65.438s,空检测 8.313s(读取校验也是这个时间),写入时间 165.984s(不包括全片擦除)。</p>
<p>整体设计尺寸和 SF100 相同,意味着如果你的 SF100 意外损坏,可以直接将这个设计的电路板放进去即可使用。</p>
<p> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3>
<hr class="horizontal-splitline normal-bold-2">
<p>原创首次开源。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3>
<hr class="horizontal-splitline normal-bold-2">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">Public Domain</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><strong><span style="color: #0093e6;">请在竞赛阶段填写 ↓</span></strong></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3>
<hr class="horizontal-splitline normal-bold-2">
<p>整体设计核心是CH347,所有的设计都是围绕这个芯片进行的。这款芯片支持• 480Mbps高速USB设备接口,使用 3.3V 进行供电外围元器件只需晶振和电容。这次设计使用了芯片提供的串口,用于和CH552通讯,控制最终的烧录接口的电压;此外最重要的就是 SPI 接口</p>
<h4>异步串口</h4>
<ul>
<li>内置固件,仿真标准串口,用于升级原串口外围设备,或者通过USB增加额外串口。</li>
<li>计算机端Windows操作系统下的串口应用程序完全兼容,无需修改。</li>
<li>硬件全双工串口,内置独立的收发缓冲区,通讯波特率支持1200bps~9Mbps。</li>
<li>串口支持8个数据位,支持奇校验、偶校验以及无校验,支持1或2停止位。</li>
<li>每个串口内置12K字节的接收FIFO,4K字节的发送FIFO。</li>
<li>支持常用的MODEM联络信号RTS、DTR、DCD、RI、DSR、CTS。</li>
<li>支持CTS和RTS硬件自动流控。</li>
<li>支持半双工,提供串口正在发送状态指示TNOW,可用于控制RS485收发切换。</li>
<li>支持最多8路GPIO输入输出功能。</li>
</ul>
<h5>SPI同步串行接口</h5>
<ul>
<li>作为Host/Master主机模式。</li>
<li>提供SCS线、SCK/CLK线、MISO/SDI/DIN线、MOSI/SDO/DOUT四根信号线。</li>
<li>支持2根片选信号线,可分时操作2个SPI接口设备。</li>
<li>支持8位/16位数据结构,支持MSB和LSB传输。</li>
<li>支持SPI模式0/1/2/3,支持传输频率配置,传输频率可达60MHz。</li>
<li>支持硬件DMA发送和接收。</li>
<li>通过计算机API配合,可灵活操作4线接口的FLASH、MCU、传感器等器件。</li>
</ul>
<p>硬件电路图如下:</p>
<p>其中比较特别的地方有三处:</p>
<p>1. CH347 是核心,外部需要一个8MHz 的晶振,选择工作在 Mode 2 下,这个模式下报告为 HID 设备,无需额外安装驱动,只要一个应用程序即可。</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"><img src="//image.lceda.cn/pullimage/DlUduMyLX1jYhS2M1gUp3VnoWQZLlToNLbmhJWnd.png" alt="" width="779" height="499"></p>
<p>其中比较特别的地方有三处:</p>
<p>1. CH347 是核心,外部需要一个8MHz 的晶振,选择工作在 Mode 2 下,这个模式下报告为 HID 设备,无需额外安装驱动,只要一个应用程序即可。</p>
<p><img src="//image.lceda.cn/pullimage/aA5CWnSMrQ0lwnsw58GfA0zh3UoHyhn4XdenNTBH.png" alt="" width="715" height="309"></p>
<p>2.CH347 工作电压是 3.3V ,它的SPI 接口默认电压为 3.3V ,但是我们需要烧写1.8V 的 SPI NOR,因此需要想办法将3.3V 电平转接为1.8V。这次给出的方法是通过 AMS1117可调版。这个芯片能够根据 Adj 引脚的电压,决定输出的电压。这里我们搭配 CH552 控制的 GPIO 通过电阻实现电压组合,从而实现了 3.3V 和 1.8V的输出。此外,CH552还负责控制3个LED,分别表示Error/Busy/Pass.</p>
<p><img src="//image.lceda.cn/pullimage/py2dLWh3Ypx5mKXx3Amjw91O7BPgyShFCr4hDBmJ.png" alt="" width="470" height="361"></p>
<p> <img src="//image.lceda.cn/pullimage/BeW4jffvhOwM82Xf1SU8dwgzkOPLjVyxfezmr3bw.png" alt="" width="779" height="224"></p>
<p>输出的电压会送给TXS0108 使用,这是一个电平转换专用芯片,右侧的输出会跟随Vadj进行改变,因此能够实现 3.3V和1.8V的 SPI 信号输出。</p>
<p><img src="//image.lceda.cn/pullimage/BV02oDEgty48AXZzewPqfa57FNCeqB90LNC6nEY5.png" alt="" width="306" height="214"></p>
<p>3.输出接口和 SF100 定义相同,因此SF100 的烧录治具可以直接兼容这个设备。</p>
<p><img src="//image.lceda.cn/pullimage/VIyFPS0hXWMqy0zY85OYtHt4yw0IRYtKvIsn3260.png" alt="" width="556" height="237"></p>
<p> </p>
<p>PCB 设计如下:</p>
<p><img src="//image.lceda.cn/pullimage/0FvvuoRzpDCni2s7S89qBvVmnFgF38yvPkvMJhH1.png" alt="" width="1430" height="695"></p>
<p>尺寸是按照 SF100 设计的,整体布局并不很紧张。</p>
<p> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3>
<hr class="horizontal-splitline normal-bold-2">
<p>前面提到了设计使用 Ch347 的 Mode 2 ,因此只需要编写一个应用程序即可。使用 VC来编写一个 Console 的代码,操作上更灵活,更方便在各种场景中使用。为了兼容性,代码使用Win32 模式(能够在 X64 下运行),使用Ch340DLL.DLL 来完成硬件的而控制。要点有以下几部分:</p>
<p>1.支持5个命令,分别是烧写(其中包括擦除操作)、校验、读取、擦除和空检测。</p>
<p> printf("Usage: \n");</p>
<p> printf("-f <filename> :Flash SPINOR\n");</p>
<p> printf("-v <filename> :Verify SPINOR\n");</p>
<p> printf("-d <filename> :Save SPINOR to a file\n");</p>
<p> printf("-e :Erase SPINOR\n");</p>
<p> printf("-b :Check if SPINOR is blank\n");</p>
<p>2. 不同的芯片支持是通过配置文件来完成的,在目录中有一个config.txt文件。举例如下,其中分号表示这行为注释,读取之后会忽略。每一行数据分别是型号、ChipID 、使用电压和容量。</p>
<p>;ChipModel,Chip ID, Voltage, Size</p>
<p> </p>
<p>GD25L32,0xC86016,1.8V,0x400000</p>
<p>GD25Q32,0xC86014,3.3V,0x400000</p>
<p>GD25LQ128C,0xC86018,1.8V,0x1000000</p>
<p>GD25B256,0xC84019,3.3V,0x2000000</p>
<p>具体的处理在源代码中:</p>
<p> // 读取配置文件</p>
<p> char ConfigFilename[MAX_PATH]; //存放路径的变量</p>
<p> GetCurrentDirectoryA(MAX_PATH, ConfigFilename);</p>
<p> strcat(ConfigFilename, "\\config.txt");</p>
<p>3. 烧录器的电压控制和LED控制是通过 Ch552实现的。其中定义了几个命令,完整代码如下:</p>
<p>/*</p>
<p> SPINOR Flasher 的CH552 代码,主要作用是控制电压和灯号</p>
<p> Version: 0.3</p>
<p> 1 - 1.8V (实际测试为 2V)</p>
<p> 2 - 3.3V</p>
<p>*/</p>
<p>#define PASSLED 14</p>
<p>#define BUSYLED 15</p>
<p>#define ERRLED 16</p>
<p>#define VCTRL 17</p>
<p> </p>
<p> </p>
<p>void setup() {</p>
<p> pinMode(PASSLED, OUTPUT);</p>
<p> pinMode(BUSYLED, OUTPUT);</p>
<p> pinMode(ERRLED, OUTPUT);</p>
<p> // 默认AMS1117 输出 1.8V</p>
<p> digitalWrite(VCTRL, LOW);</p>
<p> pinMode(VCTRL, OUTPUT_OD);</p>
<p> </p>
<p> digitalWrite(PASSLED, LOW);</p>
<p> digitalWrite(BUSYLED, LOW);</p>
<p> digitalWrite(ERRLED, LOW);</p>
<p> </p>
<p> Serial0_begin(115200);</p>
<p> </p>
<p> //while (!USBSerial()) {</p>
<p> // ; // wait for serial port to connect. Needed for native USB port only</p>
<p> // }</p>
<p>}</p>
<p> </p>
<p>void ProcessData(char bData) {</p>
<p> if (bData == '1') {</p>
<p> USBSerial_write('a');</p>
<p> Serial0_write('a');</p>
<p> digitalWrite(VCTRL, LOW);</p>
<p> } else if (bData == '2') {</p>
<p> USBSerial_write('b');</p>
<p> Serial0_write('b');</p>
<p> digitalWrite(VCTRL, HIGH);</p>
<p> } else if (bData == '3') {</p>
<p> USBSerial_write('c');</p>
<p> Serial0_write('c');</p>
<p> digitalWrite(PASSLED, HIGH);</p>
<p> } else if (bData == '4') {</p>
<p> USBSerial_write('d');</p>
<p> Serial0_write('d');</p>
<p> digitalWrite(PASSLED, LOW);</p>
<p> } else if (bData == '5') {</p>
<p> USBSerial_write('e');</p>
<p> Serial0_write('e');</p>
<p> digitalWrite(BUSYLED, HIGH);</p>
<p> } else if (bData == '6') {</p>
<p> USBSerial_write('f');</p>
<p> Serial0_write('f');</p>
<p> digitalWrite(BUSYLED, LOW);</p>
<p> } else if (bData == '7') {</p>
<p> USBSerial_write('g');</p>
<p> Serial0_write('g');</p>
<p> digitalWrite(ERRLED, HIGH);</p>
<p> } else if (bData == '8') {</p>
<p> USBSerial_write('h');</p>
<p> Serial0_write('h');</p>
<p> digitalWrite(ERRLED, LOW);</p>
<p> }</p>
<p>}</p>
<p> </p>
<p>void loop() {</p>
<p> while (USBSerial_available()) {</p>
<p> char bData = USBSerial_read();</p>
<p> </p>
<p> ProcessData(bData);</p>
<p> }</p>
<p> </p>
<p> while (Serial0_available()) {</p>
<p> char bData = Serial0_read();</p>
<p> ProcessData(bData);</p>
<p> }</p>
<p>}</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3>
<hr class="horizontal-splitline normal-bold-2">
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">立创 EDA 设计,BOM 来自电路图</p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<table style="border-collapse: collapse; width: 480pt;" width="640">
<tr style="height: 14.4pt;">
<td style="height: 14.4pt; width: 48pt;" width="64" height="19">ID</td>
<td style="width: 48pt;" width="64">Name</td>
<td style="width: 48pt;" width="64">Designator</td>
<td style="width: 48pt;" width="64">Footprint</td>
<td style="width: 48pt;" width="64">Quantity</td>
<td style="width: 48pt;" width="64">Manufacturer Part</td>
<td style="width: 48pt;" width="64">Manufacturer</td>
<td style="width: 48pt;" width="64">Supplier</td>
<td style="width: 48pt;" width="64">Supplier Part</td>
<td style="width: 48pt;" width="64">Price</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">1</td>
<td>204-10SURD/S530-A3-L</td>
<td>BUSY1,ERR1,PASS1,POWER1</td>
<td>LED-TH_BD3.0-P2.54-FD</td>
<td align="right">4</td>
<td>204-10SURD/S530-A3-L</td>
<td>EVERLIGHT(亿光)</td>
<td>LCSC</td>
<td>C99771</td>
<td align="right">0.1726</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">2</td>
<td>1uf</td>
<td>C1,C2,C3,C8</td>
<td>C1206</td>
<td align="right">4</td>
<td>C1206X104K1RAC7800</td>
<td>KEMET(基美)</td>
<td>LCSC</td>
<td>C600091</td>
<td align="right">0.4961</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">3</td>
<td>10uf</td>
<td>C4,C10</td>
<td>C1206</td>
<td align="right">2</td>
<td>C1206X104K1RAC7800</td>
<td>KEMET(基美)</td>
<td>LCSC</td>
<td>C600091</td>
<td align="right">0.4961</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">4</td>
<td>22pf</td>
<td>C5,C6,C11</td>
<td>C1206</td>
<td align="right">3</td>
<td>C1206X104K1RAC7800</td>
<td>KEMET(基美)</td>
<td>LCSC</td>
<td>C600091</td>
<td align="right">0.4961</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">5</td>
<td>0.1uf</td>
<td>C7,C9</td>
<td>C1206</td>
<td align="right">2</td>
<td>C1206X104K1RAC7800</td>
<td>KEMET(基美)</td>
<td>LCSC</td>
<td>C600091</td>
<td align="right">0.4961</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">6</td>
<td>0.1uf</td>
<td>C13</td>
<td>C1206</td>
<td align="right">1</td>
<td>C1206F104K1RAC3083</td>
<td>KEMET</td>
<td>LCSC</td>
<td>C141208</td>
<td align="right">0.2182</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">7</td>
<td>1TS005A-2700-5001</td>
<td>DLD1,START1</td>
<td>SW-TH_4P-L6.0-W6.0-P4.50-LS6.5</td>
<td align="right">2</td>
<td>1TS005A-2700-5001</td>
<td>HYP(鸿源精密)</td>
<td>LCSC</td>
<td>C319408</td>
<td align="right">0.1744</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">8</td>
<td>CH552HDR</td>
<td>H1</td>
<td>HDR-TH_4P-P2.54-V-M</td>
<td align="right">1</td>
<td>B-2100S04P-A110</td>
<td>Ckmtw(灿科盟)</td>
<td>LCSC</td>
<td>C124378</td>
<td align="right">0.2526</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">9</td>
<td>4.7K</td>
<td>R1,R3,R4(NC)</td>
<td>R1206</td>
<td align="right">3</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">10</td>
<td>5.1K</td>
<td>R2</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">11</td>
<td>10K</td>
<td>R5</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">12</td>
<td align="right">100</td>
<td>R6</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">13</td>
<td align="right">160</td>
<td>R7</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">14</td>
<td align="right">0</td>
<td>R8</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">15</td>
<td>10K</td>
<td>R9</td>
<td>R1206</td>
<td align="right">1</td>
<td>PTFR1206B10K0P9</td>
<td>ResistorToday</td>
<td>LCSC</td>
<td>C351536</td>
<td align="right">1.2904</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">16</td>
<td align="right">62</td>
<td>R10</td>
<td>R1206</td>
<td align="right">1</td>
<td>CR1206J405R1G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C102372</td>
<td align="right">0.02</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">17</td>
<td>5.1K</td>
<td>R11,R12,R13</td>
<td>R1206</td>
<td align="right">3</td>
<td>CR1206F46R98G</td>
<td>LIZ(丽智电子)</td>
<td>LCSC</td>
<td>C3036986</td>
<td align="right">0.032</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">18</td>
<td>CH347T</td>
<td>U1</td>
<td>SSOP-20_L7.5-W5.2-P0.65-LS8.0-BL</td>
<td align="right">1</td>
<td>CH347T</td>
<td>WCH(南京沁恒)</td>
<td>LCSC</td>
<td>C5122332</td>
<td align="right">18.63</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">19</td>
<td>Jumper for PS2 Power</td>
<td>U1P</td>
<td>HDR-TH_2P-P2.54-V</td>
<td align="right">1</td>
<td>826629-2</td>
<td>TE Connectivity</td>
<td>LCSC</td>
<td>C86471</td>
<td align="right">2.55</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">20</td>
<td>SF100 Slot</td>
<td>U2</td>
<td>SF100 SLOT</td>
<td align="right">1</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">21</td>
<td>TLV1117LV33DCYR</td>
<td>U3</td>
<td>SOT-223_L6.7-W3.5-P2.30-BR</td>
<td align="right">1</td>
<td>TLV1117LV33DCYR</td>
<td>TI</td>
<td>LCSC</td>
<td>C15578</td>
<td align="right">0.9837</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">22</td>
<td>8MHz</td>
<td>U4</td>
<td>HC-49S_L11.2-W5.0-P4.88</td>
<td align="right">1</td>
<td>GB0800004</td>
<td>DIODES(美台)</td>
<td>LCSC</td>
<td>C1669797</td>
<td align="right">1.7999</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">23</td>
<td>TXS0108EPWR</td>
<td>U5</td>
<td>TSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL</td>
<td align="right">1</td>
<td>TXS0108EPWR</td>
<td>TI(德州仪器)</td>
<td>LCSC</td>
<td>C17206</td>
<td align="right">3.25</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">24</td>
<td>AMS1117-ADJ</td>
<td>U6</td>
<td>SOT-223_L6.7-W3.5-P2.30-BR</td>
<td align="right">1</td>
<td>AMS1117-ADJ</td>
<td>AMS</td>
<td>LCSC</td>
<td>C6188</td>
<td align="right">0.9126</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">25</td>
<td>CH552G</td>
<td>U7</td>
<td>SOP-16_L10.0-W3.9-P1.27-LS6.0-BL</td>
<td align="right">1</td>
<td>CH552G</td>
<td>WCH</td>
<td>LCSC</td>
<td>C111292</td>
<td align="right">3.59</td>
</tr>
<tr style="height: 14.4pt;">
<td style="height: 14.4pt;" align="right" height="19">26</td>
<td>USB-212-BCW</td>
<td>USB1</td>
<td>USB-A-SMD_USB-212-BCW</td>
<td align="right">1</td>
<td>USB-212-BCW</td>
<td>XUNPU</td>
<td>LCSC</td>
<td>C720521</td>
<td align="right">0.4714</td>
</tr>
</table>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注:项目涉及的BOM清单。这个位置请上传BOM的截图。清单详情请以PDF的格式上传到附件中。建议包括型号、品牌、名称、封装、采购渠道、用途等内容。具体内容和形式应以表达清楚项目构成为准。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3>
<hr class="horizontal-splitline normal-bold-2">
<p style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img src="//image.lceda.cn/pullimage/iiPZujuE7NhiXr8n9nvf9Uj5tDg32wcp2OGtjrUy.jpeg" alt="" width="4064" height="3048"></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><img src="//image.lceda.cn/pullimage/Rulpu9MF4j3pXxnQGCU4NbpqgYMhB8BsNRCqAxYe.jpeg" alt="" width="4064" height="3048"></p>
<h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3>
<hr class="horizontal-splitline normal-bold-2">
<p style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频要求:请横屏拍摄,分辨率不低于1280×720,格式Mp4/Mov,单个视频大小限100M内;</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频标题:立创电赛:{项目名称}-{视频模块名称};如立创电赛:《自动驾驶》-团队介绍。</span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 14px;">更多详情:<a href="/posts/15a52db9fd7d40c492eb505280278e45" target="_blank">https://diy.szlcsc.com/posts/15a52db9fd7d40c492eb505280278e45</a></span></p>
<p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p>
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