From: Jim Brain (brain_at_jbrain.com)
Date: 2008-11-07 19:40:07
Spiro Trikaliotis wrote:
> Hello Jim, Ruud,
>
> * On Fri, Nov 07, 2008 at 11:05:24AM -0600 Jim Brain wrote:
>
>> ruud.baltissen@apg.nl wrote:
>>
>
>
>>>> On powerup, an onboard uC will ....
>>>>
>>>>
>>> If you allow me to add an idea: why not monitoring the RESET line?
>>> Otherwise I have to power-cycle the C= every time I want to change the
>>> image. A reset is more friendly for the electronics.
>>>
>>>
>> I'm not sure how that is different from:
>>
>> "On powerup, an onboard uC will isolate the RAM from the bus, holding
>>
> [...]
>
> What Ruud most probably meant:
>
> "On *reset*, an onboard uC will isolate..."
>
> That is: Ruud does the whole process to start even on a RESET, not only
> on power-up.
>
Ah.
The unit won't need to monitor RESET, because it will only reload the
contents if the user has requested it (by inserting an SD card, or by
"programming" the unit to load a new ROM image).
Jim
> If this whole process only takes place on power-up, you have to go
> through the power cycle each time you want to get a new ROM content.
> With Ruud's proposal, you only have to reset the machine, which might be
> less stress for the ageing machine.
>
> Regards,
> Spiro.
>
>
--
Jim Brain, Brain Innovations (X)
brain@jbrain.com
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times!
Home: http://www.jbrain.com
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