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Title: external addressing ?
Post by: slacker66 on September 06, 2015, 10:55:36 AM

hi all

With A20 i want to dial with other logic peripheral, On A20 cpu i need some address (chip select) and at least one byte 4 are very good.

Allwinner A20 support it ?

thank

Title: Re: external addressing ?
Post by: Gerrit on September 06, 2015, 06:11:13 PM

Depending on how fast it has to be you can pick 5 GPIO pins and use them for select and adressing

Title: Re: external addressing ?
Post by: slacker66 on September 07, 2015, 08:33:02 PM

Thank
i need a speed equal 4 or 8 or 16 mhz, no more. But what are pin of data bus ?

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OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: slacker66 on September 06, 2015, 10:55:36 AM