DMA Access GPIO

[mehdi.soheili]

Hi everybody
i want to work with a13 mcu ,i have a question.
in my project i need push out some data from sdram to gpio port on the fly.
in allwinner a13 DMA could access GPIO or not?
anybody could test it for me?
tnx a lot for help me

[mehdi.soheili]

hi
anybody could try it for me
i don't have board and want to buy it
tnx alot

[LeMury]

Hi everybody
i want to work with a13 mcu ,i have a question.
in my project i need push out some data from sdram to gpio port on the fly.
in allwinner a13 DMA could access GPIO or not?
anybody could test it for me?
tnx a lot for help me

Judging from the A13 manual it seems that you can not select a GPIO Port as a source or destination for the DMA controller.
Only the usual peripherals like UART, SPI, AUDIO, USB etc.
See for example register NDMA_DST_DRQ_TYPE in the A13 manual.