363 replies to this topic

[Brazzucko]

<_< There is many diagrams that don?t works, it?s not easy to find a good and functional diagram????

[Bj2c]

i got the diagram , you can see the function of all pins ,

http://www.hwserver...._en.html#MAX23x

look by yourself , it work for me , i build my cable a year ago , and still works , sorry for the english

still no cables to buy in my country

[Brazzucko]

This is a real problem.......

You can get the calc, but can?t get the cable??.

[epaloco]

I can't find the sb-87 link cable anywhere. I have searched ebay and found nothing. The stores in my town only carry the TI graph link cable. I tried that and it doesn't work. Does anyone know where I can buy an sb-87 link cable or one similar to it for an affordable price?

i could help you made your circuit if you want...

I made my own because here in my country this cable is 75 dolars plus taxes that is 94.5 dolars!!!! that?s 1/3 of the calculator price!!!!


mail me

[2072]

On the link page of my website there is one that build and sell very good cables... but the website is in French, one cable cost 24 euros.

[Ronan]

Is any desktop program for Mac OSX to communicate with cfx9850 available?
I mean the program running under real OSX, not Classic mode.
I didn't see any <{GNULINUX}> program is porting to Mac plateform.

What kind of cable may be needed?

Thanks a lot

[Brazzucko]

For Mac OS you can use the original casio SB-87-w cable but the software, i thing is only for windows, you can see at the CASIO site , if there is any program for MAC OS, you will find there.....

[Brazzucko]

For 24 Euros i can by the original Casio cable!!!!!!

It's a high price for a non-Casio cable.....

[rjstephens]

but macs dont have serial. only usb

they used to have some kind of DIN port wich was similar to a RS232 port, but they rpelaced it with USB.

[Ronan]

Brazzucko and Bytefish Productions,
Thank you both of you.
I've had the one CASIO released for old Macintosh.
I am looking for the one can work under the new Unix based Mac OSX.
Since many projects are to port programs within different Unix
I expect somebody may be porting <{GNULINUX}> program for CASIO calculator
to OSX.....

One more critiria is only usb and firewire are equiped on new model Mac.
I may need specific adapter to get them work.

Please let me know if you get more informations and thank you for your response.

[rjstephens]

see if you can get one of those usb to serial adapters working.

[Ronan]

but macs dont have serial.  only usb

they used to have some kind of DIN port wich was similar to a RS232 port, but they rpelaced it with USB.

Yes, there is no more ADB port. usb and firewire only.

I wonder some 3nd party made serial-to-usb cable can work.....
There is another possibility:
Apple sell some machine with a firewire-to-serial adapter.
It may work without any addtional driver.

But I try to have the software.

[Ronan]

see if you can get one of those usb to serial adapters working.

Official CASIO FAQ does say such a adapter called i-Dock. I need to take time to get one.....

[Brazzucko]

There is any USB Casio cable, or we have to use one adaptador

[Ronan]

I found it here: "Can I use with iMAC?"
http://www.casio.co....ion.html#pclink
It's the manufacturer.
http://www.newmotion.../mini-idock.htm

[epaloco]

: I built the second schematic of casiocorner the one with the max232,and I?d no problem with the software casio addins or fa123 with my laptop.
But with my Pc when I try to transmit from the PC to the calc it says.transmision error,etc.

Y meassured voltajes and my toshiba satellite has 7.5 volts at the input of the L7805 this DIFFERS to my PC that is only 5.0v?

Could it be a lack of power?what coul I do?
I mean if I take out the l7805 perhaps I?ll function,but what happens when I connect it to the notebook?I wonder what would happen in the calc?

thanks

=)

[Ronan]

Actually I have a pc and it works with cfx9850 very well.

Sometimes somedody always has bad ideas to make something complicated,
and I am the one.......

[Bob Vila]

i downloaded scorch from cpa, the zip is called scorch4.zip and it is a .fxi file inside. my question is how do i read it?

[CrimsonCasio]

On that same site look for a FXI to CAT converter.

[Bob Vila]

thanks, i'll look for one.

[Bob Vila]

i downloaded it, but it doesn't seem to be working...

[epaloco]

I need the voltage measure in the tip of the link cable....anything else...

someone with a tester near him,it?s only 10 seconds please
measure the voltage between the tip and ground and between middle and ground.

Thanks very much, =)

[Bob Vila]

what the heck is a .fxi file anyways?

[rjstephens]

There is some german company that sells a really good casio program with a cable. the program is called FX Interface. It uses the .fxi file format.

[rjstephens]

just curious why do you need to know?

(i wouild do it but my multimeter is broken)

[rjstephens]

i wasn't referring to the ADB port. i was reffering to the printer and serial ports, which are very similar to RS232 Ports, but have a DIN connection. you can buy an adapter or make one yourself.

ages ago I bought an adapter to get my PC modem working on my ancient Mac LC III. I'll send you the adapter if you wish but it probably wouldn't do you much good.

[Killer83Z]

http://www.fx-interf...e_fxi_info.html

Sold in europe.

[ankh]

Hi everybody!! I would like to know a good diagram of a link cable (pc-calculator) that works fine winth the Algebra FX 2.0. I?m using windows xp (don?t know if it could be a problem). I?ve seen some of them but I don?t know wich is the good one for this model .

[epaloco]

because I want to reach the conclusion that the problem I?m having is a lack of current so thats the cause my fa123 software transmit with the laptop and not from the pc...I noticed that the laptop contrary to peoples belif has more current at the serial port that the bic PC...incredible no!!??

byebye

[epaloco]

a good one could it be the one I?ve made that is the second schematic from casiocorner,but the problem is that it drains lot of current from the serial port and unless you want to supply esxtra power with a batterie you will nedd to be very carefull qith the cables you use and the connections you made because ...

lot of cables=lot of resistance=lot of current drain=less voltage=calculator not receiving!!!!!

I?m doeing my experiments and I?m reaching the conclusion that you need at least 3 volts in the tip and 4.5 volts in the middle...

obviously less than 5 volts or you will ruin your calculator....


good luck !!

[Mohamed]

ou'd probably get a wrong reading since the cable won't keep a constant voltage at it's tip.
I should've tried, but I don't have a multi-meter.

You could also try the fxi patch on the tools section on my site, maybe your cable is the fxi type.

[Ronan]

i wasn't referring to the ADB port.  i was reffering to the printer and serial ports, which are very similar to RS232 Ports, but have a DIN connection.  you can buy an adapter or make one yourself.

ages ago I bought an adapter to get my PC modem working on my ancient Mac LC III.  I'll send you the adapter if you wish but it probably wouldn't do you much good.

Thank you so much for your kindness.

I'll try the devices I already have to make sure they can work or not.
And I'll be back to post any solution or problem.
Again, thank you very much.

[jantje]

I've build the cable from the second schematic from casiocorner for the second time, and everthing works fine, except the receive function at the calculator (GFX9850GB+).

When I will send a file from my pc to my calc, the calc won't receive. If I press F2 in the LINK-menu, receive appears for one or two seconds and then you're back in the LINK menu.
I've an other cable (self-made too), the previous one from casiocorner, and everything works fine.
What's wrong with the second schematic?
What can be wrong with my cable?

I've connected pin 1,4 and 6, as the casio software needs.

Anyone that can help me?

Thanx...

[rjstephens]

i reccommend you try powering the cable from battery rather than serial port.

[epaloco]

I think that I could help you....

tell me the voltages you have in reference to ground to the tip and to the middle of your stereo plug connector.
Please this measure this after you send the instruction of receive or transmit in your software because you need this to open your port ,otherwise you will read 0v.

good luck!

[ankh]

Thanks for the answer but in the diagram of casio corner, the second one is not completed and so i?m still confused , would you tell me want components did you use exactly,measures...., i don?t want to do experiments and take riscks, I rather prefer to do experiments with gaseosa

[epaloco]

you need one voltage regulator 78L05
2 conmutation diodes 1N4148
5 caps all with the same capacitance...I used 11uF
1 max232 comparator
1 plug stereo 2.5mm
une serial port db9 plug interface(9 pins the one that is used for mouse for example)
and cables...

I advice you to use blinded cables but if you don?t use them is not crucial...

Try to keep down the overall resistence..I mean the less cable you use the less resistence you have,so more current in the circuit..that?s better

any comments feel free to mail me or post another reply...

[Ronan]

There is another possibility:
Apple sell some machine with a firewire-to-serial adapter.
It may work without any addtional driver.

I'm sorry it's a wrong information.
The adapter is to switch PC monitor for Mac...