What happened to ObsoNET?

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Por TheWhipMaster

Expert (120)

Imagen del 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 ?

Por PereGR

Champion (262)

Imagen del 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...

Por sd_snatcher

Prophet (3480)

Imagen del sd_snatcher

03-03-2011, 00:30

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

Por Sd-Snatcher

Hero (582)

Imagen del 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

Por konamiman

Paragon (1152)

Imagen del konamiman

03-03-2011, 10:19

Por caro

Champion (511)

Imagen del 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.

Por konamiman

Paragon (1152)

Imagen del 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).

Por dhau

Paragon (1570)

Imagen del dhau

29-04-2011, 00:14

Mr. Caro published his version of ObsoNet!

www.caro.su/msx/eth4msx.htm

Por Sd-Snatcher

Hero (582)

Imagen del Sd-Snatcher

29-04-2011, 01:19

Wooooo Frontpage........

Por konamiman

Paragon (1152)

Imagen del 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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