Casio CFX-9950G communications protocol Erik Grindheim August ~ October 2001 Manual
Update: 28 September, 2023
This document describes the communication process for transferring individual values to or from the Casio CFX-9950G graphic calculator. The communication is TTL-level asynchronous serial half-duplex communication, connecting to a PC's RS-232 COM port. The communication rate is 9600 bps with no parity, 8-bit byte size. The information in this document should be valid for all compatible units in the CFX-9850G series of Power Graphic calculators from Casio.
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Publication date: 02 May, 2012
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Casio CFX-9950G communications protocol Erik Grindheim August ~ October 2001 Manual PDF