How connect parallel interfase in PIO capture mode and  SD

Discussion around product based on ARM Cortex M4 core.

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savnovos
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Joined: Thu Oct 16, 2014 5:51 am

How connect parallel interfase in PIO capture mode and  SD

Thu Oct 16, 2014 6:01 am

Good time!
I'm use microcontroller SAM4SD32C.
And have some problems: how connect parallel interfase in PIO capture mode and 
SD MMC both using DMA? 
Please, explane me:
1. If each of PIO ports have capture mode register and reserved for DMA
adress area - is it posible to use DMA transfer in PIO capture mode 
port C (for example)?
2. If it' not posible - may I fix resieve adress and use my tact for 
initiate DMA transfer (such as in Xmega256)?
Wait for help.

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