Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Coppying micro SD card thru microcontroller

Status
Not open for further replies.
V

vicky.pace

Member level 1
Joined
May 5, 2008
Messages
36
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,537
sd microcontroller

Dear All,

Please suggest me about coppying micro SD card thru microcontroller based stand alone hardware. Read/write timing/protocols will also be very usefull.
Thanks in advance for your valuable suggestions.

Regards

Vikram
 

microsd card and microcontrolers

Hello!

The SD card detail is fully defined in a document published by Sandisk.
If you're a bit lazy (that's also my case), you can also start with this document
which contains source code to initialize MMC and SD cards and also a working
file system (FAT 16). Slow but working.

Now if you want to do an exact copy of one SD into the other, you don't need
a file system. The advantage would be that you read sequentially in one card
and copy the same way in the other, which is a lot faster than dealing with
the file system. I don't know what would happen if the 2 cards don't have the
same size, but you can verify the sizes by reading the MBR.

Dora.

vicky.pace said:
Dear All,

Please suggest me about coppying micro SD card thru microcontroller based stand alone hardware. Read/write timing/protocols will also be very usefull.
Thanks in advance for your valuable suggestions.

Regards

Vikram
Click to expand...
 

Please suggest me about coppying micro SD card thru microcontroller based stand alone hardware
Click to expand...

Hi,

I have recently completed a succesfull project with LPC2148, philips ARM.

This microcontroller gives you a great platform to have a Mass Storage Micro SD over USB and also you can drive the uSD inside the microcontroller with FAT16 driver.

Its really nice to use it. But one thing to mention is that FAT16 is a very slow protocol and one must be quite familiar with it to make the best use of this project.

Also working with ARM GNU GCC needs experiance.

check :
https://www.sparkfun.com/commerce/product_info.php?products_id=8627

Regards
 

hi
i need help for read and write in sd card using lpc2148
i don't know what is sector,block ,FAT?
give me guidance about read and write in sd card using lpc2148.
so i can start programming
thanks in advance .

i am waiting for your help
 

Hi,

I don't understand what your problem is. Just follow the link I put previously, Also you can find enough information about FAT itself from google (Wikipedia)

Best.
 

how can i copy {master}mmc to other extention mmc [at lest 20 pcs mcc ] via pic micro controller
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top