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data storing using microcontroller

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sukhdeepmankoo

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Hi,
I want to make pen drive using microcontroller like AT89C51. how can i make this?
Thanks
 

Hi,
use a uC, which provide a USB and FLASH interface.

then use the USB connector, USB phy for PC/laptop interface.
on other hand, use a array of flash ..
create a file system in uC to access the particular flash...

job done..

Tom

logicdevv.co.uk
 

Hi,
Instead of 89C51, you'd be better off using AT90USB as these have internal USB interface modules.
Microchip also has USB devices, 18F2550, 18F4550, a few 24F and some more.
Tahmid.
 

First of all Thanks,
I want that my board should me read as HID(Like Pen Drive). if i will be able to do so, then i will be able to store the data attached with the borad, where this borad will have eeprom for storing data. Now my problem is that, how can i make my borad appear as Pen drive(HID class). will i use FTDI's USB-Serial chip or AT90USB.

suppose if i will use AT90USB, how will i communicate it will PC. what PC will read it as Pen Drive.

Thanks & Regards
 

First u should understand pen drive is not a HID device.

Device class

HID - 0x03
Mass Storage device - 0x08 (Eg:pendrive etc)
 

If you want to store the data in pen drive then the microcontroller should act as an host. I havnt seen any micro that can work as an host.

Nandhu
 

nandhu015 said:
If you want to store the data in pen drive then the microcontroller should act as an host. I havnt seen any micro that can work as an host.

Nandhu
Click to expand...

I don't think so. Pendrive is always a device and not host(usb host) .

There are many controllers available with host capability. Like PIC24,PIC32, popular ARM etc.
 

Try Freescale uC..

Ex: HCS12 series
These devices are targeting USB based product...

it have inbuilt USB interface..

cheers,
Tom

logicdevv.co.uk
 

Thanks to all of you.
I have decided to use Atmel AVR USB microcontroller. How can i make microcontroller should appear as Mass Storage Class(0x08) and it will show memory attached with it.
I want to make around 128M Mass Storage(Pen Drive) with Atmel AVR USB microcontroller.
Kindly help me, how can i make it.
Thanks & Regards
Sukhdeep Singh.
 

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