Re: Short term plans (was RE: list charter)

At 03:13 PM 5/7/97 -0800, you wrote:
>>>For what it's worth, the menu system should boot to whatever "game 0" is--
>>>for example Star Trek. Unless you press and hold P1 start and P2 start at
>>>the same time, you wouldn't see the menu. I thought about putting a little
>>>serial NOVRAM out in memory to store the "current" boot game, but that
>>>actually complicates things a bit. (Weak pulldowns will insure that image
>>>0 always starts at boot time, since it's actually the game's ROM from
>>>0x0000-0x7ff that's executing at powerup time... The menu code lives up in
>>>0xF000 and is only called by the NMI vector.)
>>
>>Place the bank selection into the PIC processor used to re-map the keyboard.
>>If you use a PIC with built in EEPROM, it can remember the setting itself
>>and set the banking on power up.
>
>Hmmmm. That's a thought. Do you know of any PICs other than the 16C8x
>family that have onboard EEPROM for data storage? (I might want more than
>the 13 I/O lines there... Haven't really looked it over that closely yet.)

I'm afraid I'm not up on there current offerings. I know there was talk of
expanding their EEPROM line, but I'm not sure that was "More EEPROM" or
"More I/O lines on EEPROM based PICs", talk.

There is always the little (4 or 6 pin?) external EEPROMs which PICs talk to
easily, or just use some jumpers that allow you to set the Boot game.

-Zonn
Received on Wed May 7 15:23:10 1997