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长丝脱气软件

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  • 上传时间:2021-06-30
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Filament degas project USB microcontroller implementation for a filament degassing routine Goals: controlling a current supply reading pressure from a vacuum controller setting a filament current as a function of time and vacuum pressure send data and receive parameters from a PC (via USB) Hardware used: * dsPIC33f * FTDI FT232R miniboard Implementation 1. Communication protocol The hardware layer is RS232, 250kBaud rate. Communication is based on frames. A Start Of Frame (SOF) byte indicates basic protocol informations. Pressure to voltage and viceversa conversion * p=10^(1.667*v-11.33) * v=(log10(p)+11.33)/1.667 Board photo:

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