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Transfer Files from Arduino to Casio-FX-CG20

Discuss issues related to Calculator Hacking/Modding.
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Calculators: Casio fx-7400GII, Casio fx-7400GII (SH4), Casio fx-9750 G II, Casio fx-9750 G II (SH4), Casio fx-9860G, Casio fx-9860 G SD, Casio fx-9860G Slim, Casio fx-9860 GII SD, Casio fx-9860 GII SD Power Graphic 2, Casio Classpad 330 plus, Casio fx-CG 20, Casio Classpad fx-cp400, Casio fx-CG 50

Transfer Files from Arduino to Casio-FX-CG20

Postby SimonLothar » Wed Apr 11, 2018 6:05 am

What is the calculator's response to the 0x45 command? Usually you have to wait for a response-Packet (F. i. ACK) after sending a command or a data packet.

...
Serial.write("56");//checksum(calculated from everything after command)
...wait for ACK
sendData("12345678");
...wait for ACK
...
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Calculators: Casio fx-CG 20

Re: Transfer Files from Arduino to Casio FX CG20

Postby randomrguy » Wed Apr 11, 2018 6:27 am

Thank you, im gonna try that today. So everything else looks fine? And i just saw that some of my comments are missing, i'm adding them now. What are the bytes of your file transfer exmaple for(commented with /???)?

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