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How make USB flash drive?

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gauravsarode

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usb flash drive to serial port

Hello people,

Can anyone have any idea about making usb or serial Flash drive?
 

gauravsarode said:
Hello people,

Can anyone have any idea about making usb or serial Flash drive?
Click to expand...

You can use FT232BM
 

Hi,

Thx, Do u have any idea about serial port flash drive. It is used as normal flash drive but connected to serial port of pc instead of USB.
 

Thx, Do u have any idea about serial port flash drive. It is used as normal flash drive but connected to serial port of pc instead of USB.
Click to expand...

It will be tooooo slow if it is connected to serial port.

Regads.


Mr.Cube
 

hey serial port will be very very slow than USB port
 

ya i know but i still want it !!

Can anyone help now?
 

HI

well if you are happy with serial ports 'speed' then you could use a MMC/SD cards as a storage medium. These cards talk SPI and you can use a simple SPI enabled controller to interface them and the controllers also have RS232.

Thats only half of the job. you have to write a 'lot' of code for the system software that reads the card through the serial port......

kannan.k
 

see ezpcb.com site in download area,there is a sch for usb flash disk

**broken link removed**
**broken link removed**
 

ee ezpcb.com site in download area,there is a sch for usb flash disk

h**p://www.pcbonline.org/download/downfiles/udisk1114.rar
h**p://www.pcbonline.org/download/download.php
Click to expand...

what is ic1114?
 


gauravsarode said:
Hello people,

Can anyone have any idea about making usb or serial Flash drive?
Click to expand...

Hi,
TUSB6250 (h**p://www.ti.com) is IDE-USB interface. Your can use CF cards or IDE HDD or CDROM

Greets Quattro
 

You can find all you need in:

h**p://www.lvr.com

There is a section dedicated to usb storage devices.

You must use a USB ready microcontroller.

h**p://www.signal.com
h**p://www.atmel.com
h**p://www.ti.com

You may need a compiler.

h**p://www.keil.com

You will need some specific help:
h**p://www.usb.org

There is a forum, very much like this, and you will search for the answers available and get all you need.

USB storage devices are very difficult and there is a multitude of choices of types of controllers, memories, arrangements. Actually, USB is a difficult protocol and the learning curve is long and steep.

Before you start, think about what you want to accomplish: Small driver? Big? How fast? One time project? Should you buy the projet?
 
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    Cha3m

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\Try to use PIC 18F4550 with HIDMAKER FS........
 

Does anybody have source code for NAND flash controller ?

I mean source code for such tasks as : bad block manegment,
wear leveling, block mapping, NAND file system, small block emulation for erase operation and so on.

It's needed for using NAND flash with microcontroller as "block device"
on top of it.

Second question : has anybody Cypress CY3686Kit for NX2LP CY7C68034 chip?
This kit contains firmware source code. I suppose this code supports
NAND not only on hardware level, because Cypress requires NDA agreement for it:)
Could you please post that sources here or give links. Thank's.
 

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