Freescale MC9S08Gxx with Atmel DataFlash??

[ch]

Hi,
I am currently working on a project that requires me to interface an
existing platform to an external memory, for additional storage. Below
is a block diagram of what I intend to do.

[PC serial port] <--> [existing platform board] <--> [Serial Flash]


The reason of interfacing with my existing board to a serial flash is
that, the current embedded flash on the MC9S08GB uC is insufficient,
and hence I need to add an external Serial flash for additional storage

space. I require between 1MB to 2MB for the additional space.


I came across the Atmel DataFlash, and it offers up to 128Mbit, so I am

thinking of using this part for the additional storage.


Does any one know of any reference design document or tutorial,
particularly for the Freescale S08 uC architecture, to interface to the

Atmel (or any other serial/data flash)?


I am quite familiar with the Freescale uC, but zero knowledge on the
serial flash. Really appreciate some help / advice / tips.


TIA.


Rgs,
ch

 

[Adrian Jansen]

Hi,
I am currently working on a project that requires me to interface an
existing platform to an external memory, for additional storage. Below
is a block diagram of what I intend to do.

[PC serial port] <--> [existing platform board] <--> [Serial Flash]


The reason of interfacing with my existing board to a serial flash is
that, the current embedded flash on the MC9S08GB uC is insufficient,
and hence I need to add an external Serial flash for additional storage

space. I require between 1MB to 2MB for the additional space.


I came across the Atmel DataFlash, and it offers up to 128Mbit, so I am

thinking of using this part for the additional storage.


Does any one know of any reference design document or tutorial,
particularly for the Freescale S08 uC architecture, to interface to the

Atmel (or any other serial/data flash)?


I am quite familiar with the Freescale uC, but zero knowledge on the
serial flash. Really appreciate some help / advice / tips.


TIA.


Rgs,
ch

Not familiar with that processor, I dropped Freescale/Moto in favour of
Atmel years ago, but it surely handles SPI transfers. And the dataflash
uses standard SPI. Good details in the Atmel datasheet. Have used them
for many data storage uses, and quite easy to implement.

One other similar thing you could look at is SD cards. You can
read/write them in standard SPI mode from your micro, but you can also
put them in a USB card reader, and handle the data directly on a PC.


--
Regards,

Adrian Jansen adrianjansen at internode dot on dot net
Design Engineer J & K Micro Systems
Microcomputer solutions for industrial control
Note reply address is invalid, convert address above to machine form.

 

[ch]

Hi,
I am currently working on a project that requires me to interface an
existing platform to an external memory, for additional storage. Below
is a block diagram of what I intend to do.

[PC serial port] <--> [existing platform board] <--> [Serial Flash]


The reason of interfacing with my existing board to a serial flash is
that, the current embedded flash on the MC9S08GB uC is insufficient,
and hence I need to add an external Serial flash for additional storage

space. I require between 1MB to 2MB for the additional space.


I came across the Atmel DataFlash, and it offers up to 128Mbit, so I am

thinking of using this part for the additional storage.


Does any one know of any reference design document or tutorial,
particularly for the Freescale S08 uC architecture, to interface to the

Atmel (or any other serial/data flash)?


I am quite familiar with the Freescale uC, but zero knowledge on the
serial flash. Really appreciate some help / advice / tips.


TIA.


Rgs,
ch

Not familiar with that processor, I dropped Freescale/Moto in favour of
Atmel years ago, but it surely handles SPI transfers. And the dataflash
uses standard SPI. Good details in the Atmel datasheet. Have used them
for many data storage uses, and quite easy to implement.

One other similar thing you could look at is SD cards. You can
read/write them in standard SPI mode from your micro, but you can also
put them in a USB card reader, and handle the data directly on a PC.


--
Regards,

Adrian Jansen adrianjansen at internode dot on dot net
Design Engineer J & K Micro Systems
Microcomputer solutions for industrial control
Note reply address is invalid, convert address above to machine form.

Hi,
thanks for the information. I ll check out the datasheet. I am just
wondering if there are already some drivers, i.e APIs for the Atmel
Dataflash device, particularly for the Freescale/Mot HC08 architecture.
If there is, then it makes my life a lot easier. Otherwise got to write
them up myself.

Anyway, if you know of any existing drivers out somewhere, pls let me
know. It is okay if it is for another uC (i.e Atmel, Intel etc). I can
probably do the porting myself..

thanks.

rgds,
ch