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hmdtop
Joined: 27 Jun 2008
Posts: 34
Location: tehran
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 Posted: Wed Jul 02, 2008 1:33 pm Post subject: Interfacin MMC with avr |
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hi
i want to interface an eeprom with runstring led controlling with avr please help me
thank you
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AdrianJ
Joined: 16 Jan 2006
Posts: 2483
Location: Queensland
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| Posted: Sun Jul 06, 2008 11:50 pm Post subject: |
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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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Adrian Jansen
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hmdtop
Joined: 27 Jun 2008
Posts: 34
Location: tehran
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| Posted: Thu Jul 10, 2008 9:41 am Post subject: |
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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
Joined: 16 Jan 2006
Posts: 2483
Location: Queensland
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| Posted: Thu Jul 10, 2008 11:25 pm Post subject: |
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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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Adrian Jansen
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hmdtop
Joined: 27 Jun 2008
Posts: 34
Location: tehran
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| Posted: Fri Jul 11, 2008 7:17 am Post subject: |
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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
Joined: 13 Sep 2008
Posts: 7
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| Posted: Sat Sep 13, 2008 10:39 am Post subject: |
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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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در ضمن دوست عزیز ایرانی - هر سوالی داشتی می تونی بپرسی -وبسایت ما هست
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