> Ill be building a ARM-9 PC and i always do stuff better than
> anyone ,so my embedded ARM-9 will boot OpSys from Flash
> to PSRAM and , no need to reboot , but once a week .
> You turn it off and OpSys is held in PSRAM , so it
> takes 0.1 second to boot ...
Not so fast, cowboy.
A project that we just completed and is nearly identical to what you
described (ARM9 + PSRAM) has enabled us to boot from flash in 50
milliseconds.
We do some stuff better than you, always.
JJS
Reply by werty●January 9, 20072007-01-09
The M 69 AW 024
2 megaByte DRAM is so low
power , they did not want to call it DRAM ,
so they tagged it PSRAM
All the transistor methods are pulling about same
milliwatts/megahertz , so CMOS is same as DRAM .
CMOS at 50Mhz gets hot ! So why not just use DRAM !!
Besides , 2MegaBytes is impossible ,in CMOS at
that price and density ...
Only thing CMOS can do better is holding data at room
temp , 25C .
64MByte can be held at several microamps at 2.0vdc .
Ill be building a ARM-9 PC and i always do stuff better than
anyone ,so my embedded ARM-9 will boot OpSys from Flash
to PSRAM and , no need to reboot , but once a week .
You turn it off and OpSys is held in PSRAM , so it
takes 0.1 second to boot ...