Re: Wireless - switchless kernal mod

From: Nejat Dilek <imruon_at_gmail.com>
Date: Wed, 28 Mar 2018 22:04:46 +0300
Message-ID: <CAP5r8NS3cqn6+km8iqVVOfqAhcTf_XQJp41KW2D7H_yGFCCqXw@mail.gmail.com>
On Wed, Mar 28, 2018 at 6:06 PM,  <groepaz@gmx.net> wrote:
> Am Mittwoch, 28. März 2018, 17:01:13 CEST schrieb Jim Brain:
>> On 3/28/2018 5:18 AM, Nejat Dilek wrote:
>> > The question is, is there any such previous work for an algorithm or
>> > similar for such a syncing job?
>>
>> Not sure how specific your question is, but there is a project on
>> Forum64 (I think) that uses a uC to select and load into a FLASH ROM
>> lots of KERNALs  I can't remember the name offhand (MegaROM, UltraROM,
>> something like that).  I would assume it uses a similar capability.
>
> superkernal -> https://www.forum64.de/index.php?thread/74462-projekt-superkernal-24-in-1-kernal-ersatz-extras/
>
> --
>

I saw SuperKernal it's really a nice project. I think,  if I'm not
mistaken by the looks of it,  it does it's job by completely emulating
the rom. I'm trying to use a different approach with different
hardware specs and with different goals. 8-16mhz attiny85 with bare
minimum program flash along with 27c512 rom.

- I don't want to (and I can't actually with that chosen micro) chase
the individual cycles of rom accesses.
- I'll not drive the databus
- I'll only listen to 1 address bit
- That address will be modulated so that receiver will understand
sender is active and it's just not out of regular use of the computer
(1st problem : pilot sequence)
- Pilot sequence will be iterated until receiver is in sync with the
sender (2nd problem : syncing)

Much like the pilot sequence of loading from tape.

Regards,

Nejat
Received on 2018-03-28 22:00:03

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