DMA?
Posted: Fri Dec 26, 2014 12:51 pmIs there any info on DMA whatsoever? I couldn't find any and was wondering if anyone knows anything about it on the esp8266
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DMA?
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Posted: Fri Dec 26, 2014 12:51 pmRe: DMA?
Posted: Wed Jan 14, 2015 7:54 am+1
Re: DMA?
Posted: Mon Apr 13, 2015 11:34 amIn the ESP8266_Specifications_English.pdf it refers "Scattered DMA for optimal CPU off load on Zero Copy data transfer operations".
Is there any info...? Or some help where to start?
Is there any info...? Or some help where to start?
Re: DMA?
Posted: Wed Apr 15, 2015 7:52 amBased on what i've seen so far, I'm certain they're using AHB (AMBA) to connect the LX106 cpu core to all the peripherals. Don't forget this is a SoC, which is a bunch of individual component blocks connected together on a die.
http://en.wikipedia.org/wiki/Advanced_M ... chitecture
If you can find a copy of ESP8266_Pin_List_141105.xlsx, it has a lot of the internal pin connections listed. Doubt it'll be of any help though. You really need specific details of how its all routed internally to get DMA working, until Espressif release any details.
http://en.wikipedia.org/wiki/Advanced_M ... chitecture
If you can find a copy of ESP8266_Pin_List_141105.xlsx, it has a lot of the internal pin connections listed. Doubt it'll be of any help though. You really need specific details of how its all routed internally to get DMA working, until Espressif release any details.