HBI-V1 programing information needed...

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By HansO

Paladin (672)

HansO's picture

15-01-2005, 11:36

It did not arrive yet. Lots of other emails did arrive, so maybe something wrong between your provider and yahoo.

Alternative is msxhans at chello dot nl

By mfrissen

Rookie (19)

mfrissen's picture

15-01-2005, 23:17

It did not arrive yet. Lots of other emails did arrive, so maybe something wrong between your provider and yahoo.

Alternative is msxhans at chello dot nl

Ok, i will resend it to your other email account, verry strange too , normally i get an error message from my provider when something is going wrong ...

By HansO

Paladin (672)

HansO's picture

16-01-2005, 14:28

The manual is online, thanks to Marco.

Available from
http://www.hansotten.com - MSX Hardware - Sony HBI-V1 userguide in german

I will move it to funet soon, the link on the webpage will remain valid.

By mfrissen

Rookie (19)

mfrissen's picture

18-01-2005, 00:04

Right now i'm buzzy on making an msx-dos program that uses the copy routine from the HBI-v1 itself so that i can do some experimenting on it.

Lateron on i will try to use the i/o ports them self

This can take a little while sinds i have to work alot these says Crying but i'm working on it.

What i want is a msx-dos program that can use the hbi module wih the folowing futures.

normal digitizing whith and without preview on the msx-screen. a keypress wil digitize and show/save

Loop digitizing : Continious updating the screen, and when spacebar is pressed the screen will be saved to disk and the filename will be updated from lets say cap001.scc to cap002.scc.

digitize to ram -- if i can properly figure out how direct i/o works, should be faster then to vram, so maybe nicer to record some animation when clipping the portion to be captured ... and maybe very nice for hd users, even if it isnt like with an movie box on the peecee ... dont you think ??

Showing the saved pictures --slideshow and one by one--

maybe some lightweighted editing funktions like reposisioning and clipping ...

By NYYRIKKI

Enlighted (5388)

NYYRIKKI's picture

19-01-2005, 08:21

digitize to ram -- if i can properly figure out how direct i/o works, should be faster then to vram, so maybe nicer to record some animation when clipping the portion to be captured ... and maybe very nice for hd users, even if it isnt like with an movie box on the peecee ... dont you think ??

If you have MegaSCSI, you can record EVA movies on HBI-V1 (That is how the original EVA movies was done)

By [D-Tail]

Ascended (8233)

[D-Tail]'s picture

19-01-2005, 20:19

Yeah, only the toolset seems to be lost somewhere... Or it's on Japanese sites. Doesn't bother me anyhow, cause I don't have a MEGA-SCSI Wink

EVA movies can also be converted from AVI-movies tho, using AVI2EVA. Smile

By mfrissen

Rookie (19)

mfrissen's picture

22-01-2005, 23:34

I cant use that software too, no MegaSCSI, just an Sunrise IDE with an hd +cd in a nice (C= 1541) housing together with an at PSU and a little cooler...but works realy great !

So, its should be fun if i can make a little program that canmake some sort of recording.
First of al , the speed doesn't have to be 30 fps, imposible on an msx, lets say 1 is reaseneble ...

By dvik

Prophet (2200)

dvik's picture

22-01-2006, 11:06

Some more info:

Write to #7FFC bit 0-1 (command):

00 = Terminate
01 = (Instant?) Digitize
02 = Digitize with delay
03 = ??

Write to #7FFF:

Delay for write command 2 (in frames)

By HansO

Paladin (672)

HansO's picture

22-01-2006, 18:28

Tomas Karlson (BlueMSX developer lately) send me the HBI-V1 service manual.
That gives some insight how the capturing is done:
1. First the composite video signal is split into RGB (with a standard television IC) and sync (the wellknown LM1881).
2. The three RGB signals are send to three a/d converters (6 bit).
3. The digital data is then stored in a 64 K DRAM memory after being converted to YJK.

The whole logic of capture, convert and store in DRAM and the interface with the MSX is performed by a Sony IC labeled MSM79v023. It is a standard IC it seems, many references on sites offering ICs for sale. But no datasheet alas.
The program is stored in a standard 27256 ROM.

The datasheet is on the MSX Whats New page of the MSX Info Pages.

By HansO

Paladin (672)

HansO's picture

23-01-2006, 15:08

The datasheet of two of the ICs in the HBI-V1 are added now:
- The MSM79v023 Oki Gate array
- video decoder Sony V7201

Thanks to Tomas again!

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