16 résultats trouvés

par Richard
16 mars 2015 23:45
Forum : Silicium in English
Sujet : G850VS Circuit Board
Réponses : 0
Vues : 9055

G850VS Circuit Board

Here it is....

http://www.imagefactory.fsnet.co.uk/web/G850VS_1.jpg

[Edit modo] Smaller pics for integration, please [Edit modo]

Enjoy ! 8O
par Richard
11 mars 2015 14:20
Forum : Silicium in English
Sujet : G850VS update
Réponses : 0
Vues : 8489

G850VS update

Hi guys !

I now have a Japanese user manual that I'm slowly converting to English. I'm making a compilation of my notes including confirmed lists of basic and C commands, functions of keystrokes, how to enter C programs, machine code etc. I'll release a draft copy it here when I get some free time...

I have also disassembled another G850VS, photo's available soon. I have found though that the G850VS is VERY similar to the G850V (the memory chip has changed etc) and contains the following...

1. Additional battery terminals labeled BTY2+ and BTY2-. It appears they are for a backup battery (that used to sit beneath the 'name' label on the rear of the calculator). Components linked to these pads are missing though.

2. Buzzer terminals !!, labeled BZ+ and BZ-, difficult to see but a capacitor and diode may be missing. Testing to follow.

3. A Sharp S1L50752F25N2 gate array that connects to the side 'system bus' connector, probably housing a copy of the Z80 processor and other functions. At the side of this is a three-pin oscillator 'X1' (ceramic ?) and printed on top is 800C743 (could be 800G743).

4. A 70 nano seconds access time flash memory chip faster and much larger than expected (4Mbit organised as 512k 8-bit bytes in eight 64k sectors). Part number EN29F040A-70TCP.

5. Three epoxy covered surface mounted chips. two are clearly connected to the display, the third sits next to the flash memory chip ?.

Some chips are 5v, others are 3v. There are many test points, the only ones to note are three labeled BNK5 BNK6 BNK7 which I guess are some kind of memory bank switching (as Z80 processors historically had a very limited address bus).

Regards...
par Richard
28 févr. 2015 15:53
Forum : Silicium in English
Sujet : G850VS entering C ?
Réponses : 4
Vues : 13312

Re: G850VS entering C ?

Thanks Pir2 !

To see the difference in speed between C and basic I entered a simple loop program with 10,000 iterations. A simple for loop in both cases. My C code being....

{Int i;
for (i=0; i <10000; i++){}
}

The result was......

Basic 10.5 seconds
C 4.4 seconds

At first I was pleased to see a doubling in speed yet it does not explain the amazing results from another website that uses a more complicated loop to compare various calculators and their built-in languages. Extract re the G850VS below.....

37.7   PC-G850VS       Basic
4.25   PC-G850VS         C / Unstructured / Bytecode
0.0353  PC-G850VS         Assembly / Z80 @ 8.0 MHz

Hence my C loop should have been in the region of 9 times faster !?. What is wrong with my C loop ?, was it wrong to define 'i' as 'int i' ?.

Regards
par Richard
28 févr. 2015 14:16
Forum : Silicium in English
Sujet : G850VS entering C ?
Réponses : 4
Vues : 13312

Re: G850VS entering C ?

I managed to work it out from a mix of French and Japanese documents.

Next issue....

printf ("hello ¥n");

Where ¥ is the yen symbol (shift-G). This just prints 'hello', so what is the ¥n for ??

Regards
par Richard
28 févr. 2015 09:33
Forum : Silicium in English
Sujet : G850VS entering C ?
Réponses : 4
Vues : 13312

G850VS entering C ?

Hi...

I'd like to try writing C on this beast yet can't figure out the flow. Basic was easy.....press 'basic', type in your program, enter run mode and type 'run' !.

If I press 'C' I seem to get to some kind of complier menu with no way to enter a C program !?......HELP.

Regards
par Richard
19 févr. 2015 14:53
Forum : Silicium in English
Sujet : G850VS user manual to buy or download ?
Réponses : 3
Vues : 12369

Re: G850VS user manual to buy or download ?

pir2 a écrit :What differences from G850V to VS did you detect?

Except the contrast and speed, i didn't found any.

There are some dfferences from G850 / G850S to G850V / G850VS, already discussed here on the forum (CSAVE/CLOAD vs BSAVE/BLOAD for instance), are you sure you have the G850V user manual?
Hi Pir2

I have found G850VS information scattered across the internet. Unfortunately much of it I find is taken from the g850 or even e500 & hence keep finding false & misleading information. The Japanese g850vs manual would save much time and effort. It seems I have to buy a G850VS from Japan just to get the manual, then sell my unit.

I am making my own guide/reference for this pocket pc and will share when good enough.

Regards
par Richard
15 févr. 2015 09:55
Forum : Silicium in English
Sujet : G850VS System bus information in English ?
Réponses : 0
Vues : 8660

G850VS System bus information in English ?

Anyone have the above or link to it ?. I'm talking about the edge connector on the right of the machine.

Many websites mentioned by others in the past are now dead.

Regards
par Richard
15 févr. 2015 09:51
Forum : Silicium in English
Sujet : G850VS Peripherals ?
Réponses : 2
Vues : 10972

G850VS Peripherals ?

Hi

Does anyone know of a list of peripherals that will work with the pc-g850vs ?. It appears the ce-126p printer will, or will it ?.

This pocket computer desperately needs its own website where all information and downloads are available !

Regards
par Richard
13 févr. 2015 23:52
Forum : Silicium in English
Sujet : G850VS Autorun, 'FILES' command, G850VS manual etc ??
Réponses : 4
Vues : 12823

Re: G850VS Autorun, 'FILES' command, G850VS manual etc ??

pir2 a écrit :Hi Richard,

There is no Copy / aste function on this Basic editor.
The most simple thing to duplicate a code is to change the line number in edit mode and as a result copy the entire line to a new one.

Left bottom key enters you in the Katana key mode, where a correct combination of keys gives you the japanese character. For display only, same as on the E500 series.

Maybe you should try to search for an english version of the E500 series to get some help by comparison.
I grandly doubt there was an official english translation of the G850 series documentation, as it was never released out of Japan.
Thanks pir2

I know the G850VS manual was only printed in Japanese, but you can see much of the commands, command formats and examples of useage etc......but I can't even get my hands on a Japanese copy !!

Regards
par Richard
12 févr. 2015 15:20
Forum : Silicium in English
Sujet : G850VS user manual to buy or download ?
Réponses : 3
Vues : 12369

G850VS user manual to buy or download ?

I've asked this before but thought posting on it's own will be more visible :)

I have a scan of the Japanese G850V manual but I'm finding some functions that are different or don't work in the VS.

There MUST be one out there that someone has scanned or is willing to sell to me (via Paypal). I still see some G850VS are for sale with the proper Japanese manual included but not on Ebay....they are on Japanese sites that are impossible to comprehend even after translation. I have spent a few days now searching the web for the VS manual....

Sharp still list the G850VS on their website but don't have a manual to download !?.

I will even photocopy and return to someone if they are willing to let me have it for a week or two....

Regards
par Richard
12 févr. 2015 15:14
Forum : Silicium in English
Sujet : G850VS Autorun, 'FILES' command, G850VS manual etc ??
Réponses : 4
Vues : 12823

Re: G850VS Autorun, 'FILES' command, G850VS manual etc ??

gege a écrit :Hello,
1. Don't know
2. Type the L key or Shift Load (Load being the function above a certain key) - off the top of my head
3. No idea... probably not very critical
4. Use the up and down arrows in PROgram mode.

Keep the faith, you'll be handsomely rewarded by this remarkable machine !
G.E.
Thanks Gege !

2. yes it's shift-M for 'LOAD'
4. Thanks !, I'm sure I tried this before but now I see a block cursor that allows me to edit !!. Is there also a 'copy' function to allow me to enter multiple similar lines of code ?
5. What's the bottom left button do (the one with Japanese symbols on it). if I press it then start typing I get a box bottom right with space for three characters ?.

Regards
par Richard
10 févr. 2015 14:00
Forum : Silicium in English
Sujet : G850VS Autorun, 'FILES' command, G850VS manual etc ??
Réponses : 4
Vues : 12823

G850VS Autorun, 'FILES' command, G850VS manual etc ??

Hi friends

I'm slowly getting used to my impressive G850VS. Understanding documents written in french or Japanese is providing fun too :). I hope to provide my own user manual in English when it's presentable, I'm finding that basic information is scattered all over the place and even command lists written by others don't necessarily apply to the G850VS !.

My latest issues are....

1. How do you get the G850VS to autorun a bas file ?. The old ARUN, AUTORUN commands don't seem to work. I saw a Japanese document which seemed to say that the file had to saved with a specific name ??.

2. I can enter the 'FILES' command to see a list of my saved files but nothing seems to get a response other than the ↑ and ↓ keys (up and down arrows). How do I load, kill etc from this screen ??.

3. I have a scan of the original Japanese G850V user manual but can't find a scan of the latest G850VS user manual. Anyone have one or link to one I can have or even buy ??

4. How do I edit a line of a basic program ?. Do I have to enter it again ??.

Regards & thanks in advance for any responses.
par Richard
06 févr. 2015 19:57
Forum : Silicium in English
Sujet : Sharp G850VS programming in Basic ?
Réponses : 1
Vues : 9018

Re: Sharp G850VS programming in Basic ?

Ah...got it. You have to press the 'BASIC' button to return to run mode THEN type run !!.

Now to figure out the file system so I can name and save my programs....any clues to help me ?

Regards
par Richard
06 févr. 2015 18:37
Forum : Silicium in English
Sujet : Sharp G850VS programming in Basic ?
Réponses : 1
Vues : 9018

Sharp G850VS programming in Basic ?

Hi !

Just received my g850vs and tried to enter a simple program....

10 A=2
20 Print A
30 End

This shows on the screen as...

PROGRAM MODE
>
10:A=5
20:Print A
30:End

when I then type RUN I get.....

ERROR 12

What is wrong ????

Many thanks.....
par Richard
01 févr. 2015 13:55
Forum : Silicium in English
Sujet : Sharp G850vs info please !
Réponses : 4
Vues : 14220

Re: Sharp G850vs info please !

Thanks pir2

I'm hoping for a page dedicated to the g850vs that is all in English where all information is gathered together.

Regarding USB connection there is a Japanese company called Sunhayato that make (used to ???) peripherals for the G series. Yet their CT-441 usb convertor strangely seems to not be compatible with the g850vs !?
http://www.sunhayato.co.jp

[url]c:\CT-441.jpg[/url]

p.s. how do I insert images in this forum ?. I tried the img command and inserted the path to an image file but noting is shown in my post (as above this).

How do I insert .pdf files ??

Regards

Aller à la recherche avancée