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| <section id="bouffalo-lab-bl602"> |
| <h1>Bouffalo Lab BL602<a class="headerlink" href="#bouffalo-lab-bl602" title="Permalink to this heading"></a></h1> |
| <p>BL602/BL604 is Wi-Fi + BLE combo chipset for ultra-low-cost and |
| low-power application. Wireless subsystem contains 2.4G radio, Wi-Fi |
| 802.11b/g/n and BLE 5.0 baseband/MAC designs. Microcontroller subsystem |
| contains a low-power 32-bit RISC CPU, high-speed cache and memories. |
| Power Management Unit controls low-power modes. Moreover, variety of |
| security features are supported.</p> |
| <ul class="simple"> |
| <li><p>32-bit RISC CPU with FPU (floating point unit)</p></li> |
| <li><p>276KB RAM</p></li> |
| <li><p>128KB ROM</p></li> |
| <li><p>1Kb eFuse</p></li> |
| <li><p>Embedded Flash (Optional)</p></li> |
| <li><p>Four DMA channels</p></li> |
| </ul> |
| <section id="bl602-toolchain"> |
| <h2>BL602 Toolchain<a class="headerlink" href="#bl602-toolchain" title="Permalink to this heading"></a></h2> |
| <p>Toolchain can be obtained from |
| <a class="reference external" href="https://github.com/bouffalolab/bl_iot_sdk/tree/master/toolchain/riscv/Linux">bl_iot_sdk/toolchain/riscv</a></p> |
| <p>In addition, SiFive’s toolchain can be downloaded from:</p> |
| <p><a class="reference external" href="https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz">https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz</a></p> |
| </section> |
| <section id="building"> |
| <h2>Building<a class="headerlink" href="#building" title="Permalink to this heading"></a></h2> |
| <section id="nsh"> |
| <h3>nsh<a class="headerlink" href="#nsh" title="Permalink to this heading"></a></h3> |
| <p>First make sure the <code class="docutils literal notranslate"><span class="pre">riscv-gnu-toolchain</span></code> has been installed |
| correctly.</p> |
| <p>Configure the NuttX project: <code class="docutils literal notranslate"><span class="pre">./tools/configure.sh</span> <span class="pre">bl602evb:nsh</span></code>. Run |
| <code class="docutils literal notranslate"><span class="pre">make</span></code> to build the project.</p> |
| <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>root@pc:~/nuttx$<span class="w"> </span>tools/configure.sh<span class="w"> </span>bl602evb:nsh |
| |
| root@pc:~/nuttx$<span class="w"> </span>make |
| </pre></div> |
| </div> |
| </section> |
| <section id="wifi"> |
| <h3>wifi<a class="headerlink" href="#wifi" title="Permalink to this heading"></a></h3> |
| <p>Configure the NuttX project: <code class="docutils literal notranslate"><span class="pre">./tools/configure.sh</span> <span class="pre">bl602evb:wifi</span></code>. Run |
| <code class="docutils literal notranslate"><span class="pre">make</span></code> to build the project.</p> |
| <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>root@pc:~/nuttx$<span class="w"> </span>tools/configure.sh<span class="w"> </span>bl602evb:wifi |
| |
| root@pc:~/nuttx$<span class="w"> </span>make |
| </pre></div> |
| </div> |
| </section> |
| </section> |
| <section id="flashing"> |
| <h2>Flashing<a class="headerlink" href="#flashing" title="Permalink to this heading"></a></h2> |
| <p>Dev Cube is a chip integrated development tool provided by Bouffalolab, |
| which includes three functions: IOT program download, MCU program |
| download and RF performance test.</p> |
| <p>Dev Cube provides users with the function of downloading programs, and |
| supports the configuration of parameters such as clock and flash. Users |
| can decide whether to encrypt the program, add signatures, and replace |
| the information file, user resource file, partition table and other |
| functional configurations according to their own needs when the program |
| is started.</p> |
| <p>Users can get the latest version of Dev Cube through <a class="reference external" href="https://dev.bouffalolab.com/download">Bouffalo Lab |
| Dev</a>.</p> |
| <section id="config-download"> |
| <h3>Config download<a class="headerlink" href="#config-download" title="Permalink to this heading"></a></h3> |
| <p><strong>Configuration parameters include:</strong></p> |
| <ul class="simple"> |
| <li><p><strong>Interface</strong>: Select the communication interface for flashing, here |
| select Uart to download</p></li> |
| <li><p><strong>COM Port</strong>: When select UART for downloading, select the COM port |
| number connected to the chip, and you can click the Refresh button to |
| refresh the COM port</p></li> |
| <li><p><strong>Uart Rate</strong>: When select UART for downloading, fill in the baud |
| rate. The recommended download baud rate is 2MHz,</p></li> |
| <li><p><strong>Xtal</strong>: Select the crystal oscillator frequency when downloading. |
| If the board does not have a soldered crystal oscillator, the |
| internal RC32M clock source should be selected here,default is 40M</p></li> |
| <li><p><strong>Chip Erase</strong>: default setting is False</p></li> |
| </ul> |
| <p><strong>Configuration parameters include:</strong></p> |
| <ul> |
| <li><p><strong>Factory Params</strong>: Use the dts file in the device_tree folder of the |
| corresponding chip model in the Dev Cube directory. The default |
| selection is 40M.</p></li> |
| <li><p><strong>Partition Table</strong>: Use the partition table in the partition folder |
| of the corresponding chip model in the Dev Cube directory, and 2M |
| files are selected by default for BL602</p> |
| <p><strong>For the nuttx, BL602 has a dedicated partition file. It is placed |
| in</strong> <code class="docutils literal notranslate"><span class="pre">nuttx/tools/bl602</span></code></p> |
| </li> |
| <li><p><strong>Boot2 Bin</strong>: It is the first Flash program that runs after the |
| system is started. It is responsible for establishing the BLSP |
| security environment and guiding the main program to run. It uses the |
| Boot2 file in the builtin_imgs folder of the corresponding chip model |
| in the Dev Cube directory.</p></li> |
| <li><p><strong>Firmware Bin</strong>: Bin file path generated by user compilation</p></li> |
| <li><p><strong>Media/Romfs</strong>: Choose one of Media and Romfs. If you check media, |
| you should provide a file. If you check Romfs, a folder should be |
| provided.</p></li> |
| <li><p><strong>MFG Bin</strong>: Select MFG file</p></li> |
| <li><p><strong>AES-Encrypt</strong>: If you use the encryption function, you need to |
| select the AES-Encrypt option, and enter the Key and IV used for |
| encryption. Hexadecimal characters should be entered, and a Byte is |
| composed of two characters, so the Key and IV require 32 characters |
| to be input respectively. It should be noted that the last 8 |
| characters of the IV (ie 4Bytes) must be all 0</p></li> |
| <li><p><strong>Single Download Config</strong>: you can download a single file. Fill in |
| the starting address of the download, starting with 0x</p></li> |
| </ul> |
| <p>For details, please refer to <a class="reference external" href="https://bouffalolab.github.io/bl_iot_sdk/Developer_Environment/BLFlashEnv/BLFlashEnv.html#iot">BLFlashEnv — BL602 IoT |
| SDK</a></p> |
| </section> |
| </section> |
| <section id="debugging-with-openocd"> |
| <h2>Debugging with OpenOCD<a class="headerlink" href="#debugging-with-openocd" title="Permalink to this heading"></a></h2> |
| <p>Download OpenOCD <a class="reference external" href="https://static.dev.sifive.com/dev-tools/freedom-tools/v2020.12/riscv-openocd-0.10.0-2020.12.1-x86_64-linux-ubuntu14.tar.gz">RISC‑V |
| OpenOCD</a>.</p> |
| <p>Start OpenOCD:</p> |
| <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>root@pc:~$<span class="w"> </span>openocd<span class="w"> </span>-f<span class="w"> </span>~/bl_iot_sdk/tools/debug/if_bflb_link.cfg<span class="w"> </span>-f<span class="w"> </span>~/bl_iot_sdk/tools/debug/tgt_602_xip.cfg |
| </pre></div> |
| </div> |
| <p>Start GDB:</p> |
| <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>root@pc:~$<span class="w"> </span>riscv64-unknown-elf-gdb<span class="w"> </span>~/nuttx/nuttx<span class="w"> </span>-x<span class="w"> </span>~/bl_iot_sdk/tools/debug/602.init |
| </pre></div> |
| </div> |
| <p>Connect OpenOCD:</p> |
| <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span><span class="o">(</span>gdb<span class="o">)</span><span class="w"> </span>target<span class="w"> </span>remote<span class="w"> </span>:3333 |
| |
| <span class="o">(</span>gdb<span class="o">)</span><span class="w"> </span>c |
| </pre></div> |
| </div> |
| </section> |
| <section id="bl602-peripheral-support"> |
| <h2>BL602 Peripheral Support<a class="headerlink" href="#bl602-peripheral-support" title="Permalink to this heading"></a></h2> |
| <ul class="simple"> |
| <li><p>One SDIO 2.0 slave</p></li> |
| <li><p>One SPI master/slave</p></li> |
| <li><p>Two UART</p></li> |
| <li><p>One I2C master</p></li> |
| <li><p>Five PWM channels</p></li> |
| <li><p>10-bit general DAC</p></li> |
| <li><p>12-bit general ADC</p></li> |
| <li><p>Two general analog comparators (ACOMP)</p></li> |
| <li><p>PIR (Passive Infra-Red) detection</p></li> |
| <li><p>IR remote HW accelerator</p></li> |
| <li><p>16 or 23 GPIOs</p></li> |
| </ul> |
| <table class="docutils align-default"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Peripheral</p></th> |
| <th class="head"><p>Support</p></th> |
| <th class="head"><p>NOTES</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>GPIO</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>UART</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>SPI</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>I2C</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>DMA</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Wifi</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>SPI FLASH</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Timers</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Watchdog</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>RTC</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>RNG</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>AES</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>eFuse</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>ADC</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Bluetooth</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>LED_PWM</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>SHA</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>RSA</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </section> |
| <section id="supported-boards"> |
| <h2>Supported Boards<a class="headerlink" href="#supported-boards" title="Permalink to this heading"></a></h2> |
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| <li class="toctree-l1"><a class="reference internal" href="boards/bl602evb/index.html">bl602evb</a></li> |
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