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Author Topic: RAM On RTC chips ... Just out of intrest ...  (Read 1474 times)

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Offline HodgkinsonTopic starter

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RAM On RTC chips ... Just out of intrest ...
« on: September 12, 2007, 12:24:04 PM »
Im wondering wether anyone has ever tried to make the 26x4 bits of internal battery backed RAM in the RP5C01 RTC IC (As used in A4000's and can be used in RTC's on the A1200) accessable by the system?

Perhaps the RAM wont be of much use as general system RAM, but im wondering if anyone has ever used this to store information between cold reboots on, say, floppy only systems where disks are write-protected?

Just thought this might be of intrest to someone.

Hodgkinson.
Main A1200D: WB3.0, 3.1 ROMs, 2GB HDD, Blizzard 1230IV (64MB RAM + FPU) and a whole load of custom heatsinks... :flame:
 

Offline HodgkinsonTopic starter

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Re: RAM On RTC chips ... Just out of intrest ...
« Reply #1 on: September 14, 2007, 04:10:41 PM »
Quote

Consult battmem.doc


Where might I be able to find this document, Piru? I'd be interested to have a read...

Thanks for the replies (I thought something might have made use of the memory...)

Hodgkinson.
Main A1200D: WB3.0, 3.1 ROMs, 2GB HDD, Blizzard 1230IV (64MB RAM + FPU) and a whole load of custom heatsinks... :flame: