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SimonLothar
Thu Apr 26, 2018 4:45 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Transfer Files from Arduino to Casio-FX-CG20
Replies: 20
Views: 16129

Re: Transfer Files from Arduino to Casio-FX-CG20

The problem was my casio. I bought a new one and now it's working like it should. The only kinda weird problem im still getting is: When transfering large Images, im getting an error package after around 120 data packages(i think its the last Data package). 0x15 01 0 6F//i've read in your pdf that ...
SimonLothar
Sun Apr 22, 2018 2:36 pm
 
Forum: Calculator Hacking/Modding Discussions
Topic: Transfer Files from Arduino to Casio-FX-CG20
Replies: 20
Views: 16129

Re: Transfer Files from Arduino to Casio-FX-CG20

I must admit, that I am at a loss here. If rx/tx-wires are not connected correctly, you shouldn't get any reaction at all. After you have sent the 0x45-command, do you wait for the ack-packet (without sending any other byte)? Perhaps you should post a complete dump of bytes, which are sent and recei...
SimonLothar
Sun Apr 15, 2018 7:33 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Transfer Files from Arduino to Casio-FX-CG20
Replies: 20
Views: 16129

Re: Transfer Files from Arduino to Casio-FX-CG20

Error check is just my String to be printed when no ack package is received. Before starting a file transfer or any other commend, there should be ensured, that the check-packet is properly answered by the ack-packet (See fxReverse 4.10.1). Could you log the bytes, which are actually exchanged by t...
SimonLothar
Sat Apr 14, 2018 8:35 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Transfer Files from Arduino to Casio-FX-CG20
Replies: 20
Views: 16129

Re: Transfer Files from Arduino to Casio-FX-CG20

I updated the Code now with checking for Ack, but its still not working. As soon as i connect the calculator to the Arduino, change cable to 3pin and press "RECV" my console is printing: _|0000000|_Error check _|0000000|_Error check _|00000000|_Error check _|00|_Error check _|000000|_Erro...
SimonLothar
Wed Apr 11, 2018 6:05 am
 
Forum: Calculator Hacking/Modding Discussions
Topic: Transfer Files from Arduino to Casio-FX-CG20
Replies: 1
Views: 1720

Transfer Files from Arduino to Casio-FX-CG20

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 fo...
SimonLothar
Sat Apr 07, 2018 5:56 pm
 
Forum: Casio fx-9860 SDK
Topic: Serial Number
Replies: 21
Views: 38241

Re: Serial Number

I think one really shouldn't rely on a zero terminator when working with serial numbers, as they might contain zeroes, which would cause weird behaviour anyway. Just to ensure that people, who use the serial number in their programs, are not concerned: The serial number of the casio fx-9860 calcula...
SimonLothar
Fri Apr 06, 2018 4:59 pm
 
Forum: Casio fx-9860 SDK
Topic: Serial Number
Replies: 21
Views: 38241

Re: Serial Number

A memcpy isn't necessary, the following suffices: //8-byte unique ID const unsigned char * deviceId = (unsigned char *) 0xA000FFD0; Then you can use deviceId the same way as you'd use workbuffer , except for writing of course. The problem with the serial number is, that it is not terminated by a ze...
SimonLothar
Thu Apr 05, 2018 8:12 pm
 
Forum: General
Topic: fx-9860GII Power Graphic 2 display issue
Replies: 3
Views: 3068

Re: fx-9860GII Power Graphic 2 display issue

Perhaps you could try to trigger the bootcode OS update by simultaneously holding down F2, 4 and Ac/ON and pressing the RESTART-button about one second (the calc should show a blank display after releasing the keys) and finally pressing 9 and x consecutively (hold down 9 and x about a second each). ...
SimonLothar
Wed Feb 28, 2018 6:25 pm
 
Forum: Casio fx-9860 SDK
Topic: [SOLVED] How to make own G1A run in SDK?
Replies: 11
Views: 24985

Re: [SOLVED] How to make own G1A run in SDK?

Long time since. I do not remember. I have the notion, that I had noticed some according code while browsing OSes.
SimonLothar
Wed Feb 21, 2018 6:58 am
 
Forum: Casio fx-9860 SDK
Topic: Reading storage memory of the emulator
Replies: 3
Views: 3438

Re: Reading storage memory of the emulator

Once you access the storage memory out of the emulator, a file CasioUserROM.mem in the project directory INIT is created. Unfortunately parts of the contents seem to be packed or encrypted. It looks as if the contents cannot be easily read or written.
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