flashforth-devel

Re: [Flashforth-devel] SPI FRAM memory drivers

[<zd...@al...>]

Surprisingly, this topic didn't get any more attention. For me it was a 
big surprise to discover that MRAM prices go from 4 Euro for SPI serial 
32kx8 to 30 Euro for 16Mb parallel 1Mx16 (at Mouser).
So, now as we can get cheap and fast non volatile memory, this should be 
the end for DRAM, SRAM, flash, EEPROM, battery backup, writing endurace 
problems, programming voltage, block writes, complicated memory mapping 
etc.
The best thing is that the company producing this ('Everspin 
technologies') and 'Microchip' both have their headquarters in Chandler, 
AZ, literally behind the corner.
Am I the only one noticing the endless possibilities, especially in 
Forth implementations?

https://www.everspin.com/

Re: [Flashforth-devel] SPI FRAM memory drivers

[<zd...@al...>]

Somebody did :-P
https://www.forth.com/embedded/
http://www.mpeforth.com/xc7.htm

But I don't think they really care about FRAM advantages with this 
'cross compiling'.

If you ask MRAM manufacturer then MRAM is superior to FRAM. However, if 
you don't need more then 10E14 writing cycles, don't operate above 85 'C 
and 90 ns access is fast enough, then it is just the same:
http://www.everspin.com/file/227/download

This MSP430 looks just fine. Only 8 Euro with 128k FRAM and everything 
one microcontroler should have.
http://hr.mouser.com/ProductDetail/Texas-Instruments/MSP430FR6989IPN
One thing is surely missing in instruction set. There is autoincrement 
indirect adressing, but no autodecrement. Somebody didn't like stacks 
:-(

Never heard about this series before. I see they have problem with low 
cost development systems. No PicKit equivalent, but you have to buy 
development board for each model
http://www.mouser.com/ds/2/405/slau535b-876328.pdf

Zdravko

Re: [Flashforth-devel] SPI FRAM memory drivers

[Mikael N. <mik...@fl...>]

I suppose this is the same technology that is used in the MSP430 FRAM 
parts.

I never got around to porting FF to MSP430...

BR Mikael

On 01.06.2016 15:02, zd...@al... wrote:
> Surprisingly, this topic didn't get any more attention. For me it was 
> a
> big surprise to discover that MRAM prices go from 4 Euro for SPI 
> serial
> 32kx8 to 30 Euro for 16Mb parallel 1Mx16 (at Mouser).
> So, now as we can get cheap and fast non volatile memory, this should 
> be
> the end for DRAM, SRAM, flash, EEPROM, battery backup, writing 
> endurace
> problems, programming voltage, block writes, complicated memory 
> mapping
> etc.
> The best thing is that the company producing this ('Everspin
> technologies') and 'Microchip' both have their headquarters in 
> Chandler,
> AZ, literally behind the corner.
> Am I the only one noticing the endless possibilities, especially in
> Forth implementations?
>
> https://www.everspin.com/
>
>
> 
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