I found an At45DB161 on my board. How can I acess it? It is not in the schematics.

That is the flash used by the mbed interface. So if you've loaded a program you've already used it.

You can use it for you program using the LocalFileSystem class.

Hi Fritz,

That's the FLASH memory used by the interface filesystem. We also added a way you can read/write files on it from your program; see:

http://mbed.org/handbook/LocalFileSystem

Simon

Simon Ford wrote:
That's the FLASH memory used by the interface filesystem. We also added a way you can read/write files on it from your program; see: http://mbed.org/handbook/LocalFileSystem Simon

OK so I understant there is a 16 MB chip , How many coud we use to store data for the programme ? how many do we need to keep free to program the mbed ?

why not give the indication in the hand book ?

is it possible to do the same with an SD card or an i2c eeprom to get more room ? a 1GB file system would be nice for storage if it is possible to access it via the on board usb plug !

thank you

JF Pion

 

pion jean françois wrote:

Simon Ford wrote:
That's the FLASH memory used by the interface filesystem. We also added a way you can read/write files on it from your program; see: http://mbed.org/handbook/LocalFileSystem Simon

OK so I understant there is a 16 MB chip , How many coud we use to store data for the programme ? how many do we need to keep free to program the mbed ?

why not give the indication in the hand book ?

is it possible to do the same with an SD card or an i2c eeprom to get more room ? a 1GB file system would be nice for storage if it is possible to access it via the on board usb plug !

thank you

JF Pion

 

There is a SD card project (and library) in the cookbook, look it up.

Sean Tate wrote:
There is a SD card project (and library) in the cookbook, look it up.

I've seen it

but I would know if there is a way to see the sd card as a firtual disk via the usb port as th system file ?

thank you

I dont think thats possible, you could use a MemoryCard reader but then you would have to switch back and forth.

Vlad Cazan wrote:
I dont think thats possible, you could use a MemoryCard reader but then you would have to switch back and forth.

OK  too bad, could be a nice feature if somebody find a way ...  nevermind card reader exist on most computer anyway

but I still don't know the minimum size of memory I have to left to program the controleur

 

thank you

jf Pion

 

pion jean françois wrote:

 

but I still don't know the minimum size of memory I have to left to program the controleur

This mbed Microcontroller is based on a Cortex-M3 Core running at 100MHz, with 512KB FLASH, 64KB RAM and a load of interfaces including Ethernet, USB Device, CAN, SPI, I2C and other I/O.

You only have 512KB of flash so subtract your program size and thats the space left to work with :)

 

Vlad Cazan wrote:

 

pion jean françois wrote:

 

but I still don't know the minimum size of memory I have to left to program the controleur

This mbed Microcontroller is based on a Cortex-M3 Core running at 100MHz, with 512KB FLASH, 64KB RAM and a load of interfaces including Ethernet, USB Device, CAN, SPI, I2C and other I/O.

You only have 512KB of flash so subtract your program size and thats the space left to work with :)

 

OK thank you. It will be enough room to store a few airplane model configuration !  I definitly wait the book the "C++ for the stupids" to be able to start. look like i'm the weakest link in the chain ;-)  I would like  basic to program but i don't think there is any hope ;-)