What happened to ObsoNET?

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By TheWhipMaster

Expert (120)

Аватар пользователя TheWhipMaster

02-03-2011, 13:26

PAL and GAL can be hack , I did it year ago in order to descramble a very well know French TV channel Wink
in order to do so you need a ALL 11 programmer with the analysis and power control module ... it's a bit risky for the component but well what you want is the logic not to save a component right ?

By PereGR

Champion (262)

Аватар пользователя PereGR

02-03-2011, 13:57

PAL and GAL can be hack , I did it year ago in order to descramble a very well know French TV channel Wink
in order to do so you need a ALL 11 programmer with the analysis and power control module ... it's a bit risky for the component but well what you want is the logic not to save a component right ?

... there is a chance...

By sd_snatcher

Prophet (3443)

Аватар пользователя sd_snatcher

03-03-2011, 00:30

Is there any programming guide for the ObsoNet available? That would also help to understand the hardware.

By Sd-Snatcher

Hero (582)

Аватар пользователя Sd-Snatcher

03-03-2011, 06:49

Is there any programming guide for the ObsoNet available? That would also help to understand the hardware.

All you need is at www.konamiman.com

By konamiman

Paragon (1117)

Аватар пользователя konamiman

03-03-2011, 10:19

By caro

Champion (511)

Аватар пользователя caro

03-03-2011, 11:07

www.konamiman.com/msx/obsonet/onetm-e.txt

      #7FE0-#7FFF: RTL8019AS registers
      #BFE0-#BFFF: RTL8019AS registers (mirror of #7FE0-#7FFF)


1) Whether the mirror sample of the registers RTL8019 is necessary?

   The Flash ROM size is 512K, but the ObsoNET address space shows only  16K simultaneously 
(actually 16K-32 bytes, due to the space occupied  by the RTL8019AS registers).
   The ROM is therefore divided in 32 logical pages of 16K each,  numbered 0 to 31.


2) Whether it is impossible will be limited to smaller volume FLASH-ROM?

PS. I understand, that a lot of memory does not happen :)

By the description, circuit it is possible to simplify and to do without GAL.

By konamiman

Paragon (1117)

Аватар пользователя konamiman

03-03-2011, 11:41

1) Whether the mirror sample of the registers RTL8019 is necessary?
The mirror zone was added for convenience but is not actually used by Obsonet BIOS.

2) Whether it is impossible will be limited to smaller volume FLASH-ROM?
You need only 16K of flash ROM, BIOS is actually only 2K long. However I think that 512K flash ROMs are the cheapest. Also, you will need a ROM chip that is compatible with the one used in Obsonet, if you want to use the existing Obsonet flash rom loader utility (I don't remember the exact model but it was a quite standard one).

By dhau

Paragon (1569)

Аватар пользователя dhau

29-04-2011, 00:14

Mr. Caro published his version of ObsoNet!

www.caro.su/msx/eth4msx.htm

By Sd-Snatcher

Hero (582)

Аватар пользователя Sd-Snatcher

29-04-2011, 01:19

Wooooo Frontpage........

By konamiman

Paragon (1117)

Аватар пользователя konamiman

29-04-2011, 09:26

That's great!! Even the schematics are published so "anyone" can build its own card! LOL!

Just a remark: caro, I see in the screenshoots that you are using "InterNestor Lite for Obsonet 1.02". I hope you know that this version is discontinued, you should use InterNestor Lite 2 instead (with ObsoNET BIOS 1.1) that implements the TCP/IP UNAPI specification and will let you use the latest networking applications developed.

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