How to convert SD interface to USB port in a processor?

[bert_kak]

I needed a USB port in my design now but i only have a SD interface in the processor I am using. can you help me what chip can i use to have a USB interface. there is also an I2C bus available in the processor.

 

[howie]

sd inface

Try to download datsheet of GL828 or you may review my attachment.

 

[paurelian]

usb sd interface

Try to use the vinculum series of chips from ftdi. I saw today a presentation and it looks great for such kind of problems.

 

[doraemon]

sd interface usb

Hello!

You have an SD interface on the processor itself?
I knew that processors can be used to communicate with an SD card (using
SPI for instance), but I din't know there were processors with SD interface.

What kind of processor is it?

Just in case, TI provides an application note about how to use a TUSB3410
with MSP 430.
**broken link removed**

And if you use the same URL and replace the final ".pdf" by ".zip", then you will
get the full source code.

By the way I used it and it works right out of the box. Depending on the processor
you use, the source code from the microcontroller will vary but all the rest will be
exactly the same. Try to send a byte to Hyperterminal, that's the easiest way
to get something to work.

Dora.

I needed a USB port in my design now but i only have a SD interface in the processor I am using. can you help me what chip can i use to have a USB interface. there is also an I2C bus available in the processor.