Q re AT24C1024B EEPROM chips
HollyMinkowski
Posts: 1,398
Should I order the AT24C1024B-PU-ND 1.8v part or the AT24C1024B-PU25-ND 2.5v part to work with the propeller??
There is a small price difference, the 2.5v part is more $.
Is this chip connected up to the prop exactly as the 24CL256 is?
Pin 1 is marked NC on the larger chip and A0 on the 32KB chip.
Pin 4 is marked Gnd on one and Vss on the other..I assume they both connect to Gnd.
Like I said, I'm a software type not a hardware type (not yet anyway...I'm trying)
Got the guys I write software for to spring for my Propeller hardware so I will be ready to experiment
soon as the stuff arrives. They had never heard of the chip but were intrigued when I explained that
it could replace the need for an RTOS and have no timing jitter and be a good fit for an upcoming
project...it's also cheaper than the ARM9 BGA for that project although it has less mips. The idea of
easy VGA video and simple kbrd/mouse hookup was a good point as well. It could even eliminate the need
for laptop/netbook computers to configure and pull data from the project boards.
I'm going to try and make a prototype board for the project all by myself using the propeller.
Will probably use PASM for maximum speed and compact code. I was set to do the C code for the ARM board
anyway and I think this will be not much harder soon as I pick up PASM and spin and get used to no interrupts.
There is a small price difference, the 2.5v part is more $.
Is this chip connected up to the prop exactly as the 24CL256 is?
Pin 1 is marked NC on the larger chip and A0 on the 32KB chip.
Pin 4 is marked Gnd on one and Vss on the other..I assume they both connect to Gnd.
Like I said, I'm a software type not a hardware type (not yet anyway...I'm trying)
Got the guys I write software for to spring for my Propeller hardware so I will be ready to experiment
soon as the stuff arrives. They had never heard of the chip but were intrigued when I explained that
it could replace the need for an RTOS and have no timing jitter and be a good fit for an upcoming
project...it's also cheaper than the ARM9 BGA for that project although it has less mips. The idea of
easy VGA video and simple kbrd/mouse hookup was a good point as well. It could even eliminate the need
for laptop/netbook computers to configure and pull data from the project boards.
I'm going to try and make a prototype board for the project all by myself using the propeller.
Will probably use PASM for maximum speed and compact code. I was set to do the C code for the ARM board
anyway and I think this will be not much harder soon as I pick up PASM and spin and get used to no interrupts.
Comments
I am presuming you require the larger EEPROM?
GND and VSS are the same.
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Links to other interesting threads:
· Home of the MultiBladeProps: TriBladeProp, SixBladeProp, website (Multiple propeller pcbs)
· Single Board Computer:·3 Propeller ICs·and a·TriBladeProp board (ZiCog Z80 Emulator)
· Prop Tools under Development or Completed (Index)
· Emulators: Micros eg Altair, and Terminals eg VT100 (Index)
· Search the Propeller forums (via Google)
My cruising website is: ·www.bluemagic.biz·· MultiBladeProp is: www.bluemagic.biz/cluso.htm
Also, Catalina and BSC are hobby compilers for C (sorry about the "hobby" guys).
But the bosses would be more likely to purchase a product, given what I know about managerial psychology. So go with ImageCraft.
www.imagecraft.com/
And the clock is ticking...
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JMH
Post Edited (James Michael Huselton) : 6/7/2009 4:29:12 PM GMT
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JMH
What is BSC? Is there another C compiler for the prop we don't know about?
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"VOOM"?!? Mate, this bird wouldn't "voom" if you put four million volts through it! 'E's bleedin' demised!
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JMH