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Interfacin MMC with avr

 
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hmdtop

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Joined: 27 Jun 2008
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PostPosted: Wed Jul 02, 2008 1:33 pm    Post subject: Interfacin MMC with avr Reply with quote

hi
i want to interface an eeprom with runstring led controlling with avr please help me
thank you

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AdrianJ

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PostPosted: Sun Jul 06, 2008 11:50 pm    Post subject: Reply with quote

You will have to post more details about what you are trying to do. What eeprom ? How are the LEDs connected ? What have you tried so far ?
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hmdtop

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Joined: 27 Jun 2008
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Location: tehran

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PostPosted: Thu Jul 10, 2008 9:41 am    Post subject: Reply with quote

hi
i want to make a runstring or signboard with common anod led or dotmatrix so now i dont know how i must get start what the hardware of this project is and other thing of course some body told me use shiftregister like 74299 and an EEPROM like AT24c1024 , so now what should i do??

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AdrianJ

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PostPosted: Thu Jul 10, 2008 11:25 pm    Post subject: Reply with quote

Sorry, I dont have the time to do designs as free advice. You will have to study some electronics and learn how to put a project together first. Lots of good info on the Web, and in books. But I suggest you start with something simpler first, like how to wire up a few LEDs and get them to flash from a processor. Then you can build on that to more complex things.
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hmdtop

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PostPosted: Fri Jul 11, 2008 7:17 am    Post subject: Reply with quote

thank you my friend but my aim is to make that and i'm doing some researches for that and i will make that soon ,however, i made 8x8 one .
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Aristar

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Joined: 13 Sep 2008
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PostPosted: Sat Sep 13, 2008 10:39 am    Post subject: Reply with quote

dear friend !
you can use internal eeprom in avr for 1000000 times !
but u can connect an external memory to some chip . Sample : 8515 or 8535
You can Find that interface in bascom-avr reference

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