HBI-V1 programing information needed...

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Van BiFi

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23-01-2006, 15:22

I noticed you're doing some redesigning... It's looks quite nice like that.

Van HansO

Paladin (672)

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23-01-2006, 20:39

Thanks. Still working on it.

Van mohai

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13-07-2015, 19:05

Hello,

sorry for update such an old thread.
Recently, I bought an HBI-V1 complete with box, manual and software.
It has been imported and adapted to PAL by LASP (an old Spanish MSX importer).
I have been studying the mod and I found following parts were changed or modified:

X101: PAL = 4.4333619 NTSC = 3.579545
R106: PAL = 4700 ohm NTSC = 1000 ohm
R107: PAL = 100 ohm NTSC = 1000 ohm

IC101 (V7020): Cut pins 19,20,21

There is no extra board also.
As far as I can see, there are no other parts modified.

Van mohai

Paladin (932)

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25-08-2015, 13:09



Van mars2000you

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21-08-2018, 21:32

My guess about CALL FMV is that allows to manually digitize fonts. As this cartridge is only a digitizer, not a superimposer, Sony seems to have imagined an alternative.

In stead of superimposing a text on a picture, you can add a text on a picture, by using a digitized font. Some parameters of CALL DFONT seem to allow the use of a specific built-in font (normal, bold, reverse, ?italic, ...), probably one of these parameters (?P for personal font) is for custom fonts created with CALL FMV.

Van mars2000you

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21-08-2018, 22:53

Correction: I meant the toggles mentioned about CALL DFONT, not the parameters of this instruction!

Btw, how can I activate these toggles??? I guess it's when loading BFONT.BIN as 'normal' characters are displayed with DFONT.BIN.

Van mars2000you

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22-08-2018, 01:44

Finally found what's the utiility of CALL FMD (not FMV as mentioned above!).....It makes different operations on the picture that is in the VRAM of the HBI-V1 cartridge and has 6 parameters. It seems to work like CALL AD, but with an interesting original second parameter:

CALL FMD (G,H,A,B,C,D)

H= Encoding type of image - 0 = YJK - 1=YJK + YAE - 2=RGB

Van mohai

Paladin (932)

afbeelding van mohai

25-07-2021, 20:48

Resurrecting this thread ... again LOL!

So, regarding the information collected, the digitizer is able to get 6 bits per RGB component, so 18 bits but, there is no way get such 18 bits raw, as there is a converter chip in the middle ?

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