pic to mmc interface

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Discussion in 'Embedded Systems and Microcontrollers' started by eceeng, May 8, 2007.

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May 8, 2007 #1

eceeng Thread Starter Member

May 8, 2007

10

0

i am currently working on a project where i have to interface PIC16F877 to a Multi media card (MMC). i'm having a hard time designing the hardware. anyone who can help me? thanks...

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May 8, 2007 #2

n9352527 AAC Fanatic!

Oct 14, 2005

1,198

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Can you elaborate more on the specific problem that you are experiencing?

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May 8, 2007 #3

hgmjr Retired Moderator

Jan 28, 2005

9,030

218

Is this what you had in mind?

PIC to MMC design example

If not then you might try "googling" for more.

hgmjr

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May 9, 2007 #4

eceeng Thread Starter Member

May 8, 2007

10

0

i am using the dos usd module from http://chipdos.com

i used the uart connection of this module to pic as shown in http://chipdos.com/library/CD17Bxx-0v8.pdf

i tie cts to ground and leave rts hanging.

my problem is, the module doesn't seem to respond.

i also need help in writing the program.
i will be using ccs compiler.

thanks...

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