163 lines
6.4 KiB
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163 lines
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<div class="textblock"><h1><a class="anchor" id="autotoc_md2"></a>
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JTAG Interface</h1>
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<p>When connecting the MCU to the programmer via the JTAG interface, it is possible for a local power supply connected to the MCU to be used or for power from the debugging/programming adapter to be used. Since having power supplied to the MCU from the debugging/programming adapter can be useful for use outside of the Sunseeker vehicle, we chose to use that.</p>
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<h1><a class="anchor" id="autotoc_md3"></a>
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Microcontroller Connections</h1>
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<p>The board is going to be organized to the best of our abilities to be organized as such:</p>
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<ul>
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<li>Left Side:<ul>
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<li>Peripherals for communicating with/controlling the Sunseeker vehicle</li>
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</ul>
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</li>
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<li>Right Side:<ul>
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<li>Peripherals for communicating with users</li>
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</ul>
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</li>
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</ul>
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<h4><a class="anchor" id="autotoc_md4"></a>
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Universal Serial Communication Interfaces (USCIs):</h4>
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<ul>
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<li>A - Supporting up to four total of UART and/or SPI<ul>
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<li>A0 [SPI]:<ul>
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<li>CANbus Controller 0 (Microchip Technology MCP2515T-I/SO)</li>
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<li>CANbus Controller 1 (Microchip Technology MCP2515T-I/SO)</li>
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</ul>
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</li>
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<li>A1:</li>
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<li>A2 [UART]:<ul>
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<li>USB to UART Bridge (Future Technology Devices International FT230XS-R)</li>
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</ul>
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</li>
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<li>A3 [UART]:<ul>
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<li>RS-232 Transceiver (STMicroelectronics ST232CDR)</li>
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</ul>
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</li>
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</ul>
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</li>
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<li>B - Supporting up to four total of I2C and/or SPI<ul>
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<li>B0 [SPI]:<ul>
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<li>SD Card</li>
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<li>GPS Receiver (U-Blox NEO-M8Q-01A)</li>
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</ul>
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</li>
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<li>B1 [I2C]:<ul>
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<li>Inertial Measurement Unit (TDK InvenSense ICM-20948)</li>
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<li>Real-Time Clock/Calendar (Microchip Technology MCP7940MT-I/SN)</li>
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</ul>
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</li>
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<li>B2:</li>
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<li>B3 [SPI]:<ul>
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<li>Bluetooth/Wi-Fi (Espressif Systems ESP32-WROVER-IE (8MB))</li>
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</ul>
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</li>
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</ul>
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</li>
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</ul>
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<p>In addition to trying to keep the MCU and PCB organized with the left-side being to do with the Sunseeker vehicle and the right side to be peripherals interacting with users, we tried to also load-balance the USCI modules, as well as have the SPI protocol be used in more high data-rate peripherals and I2C used with lower or less-used peripherals. In Texas Instruments SLAS655G Document [Page 7] has a pin diagram showing the physical location of where each pin is physically located. </p>
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<li class="navelem"><a class="el" href="hardware.html">Hardware</a></li>
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<li class="footer">Generated on Mon Feb 22 2021 20:33:18 for 2020-2021 Sunseeker Telemetry and Lighting System by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.1 </li>
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