UART DMA

Hello everybody,

Now I'm working for a project which is need data transfer from UART. My data are too many so the transfer speed is too long and make the processor stop working and cannot continue the calculation. I want to make the data from UART is saved directly to the RAM using DMA. Is that possible? Is there any tutorial to make it?

Sorry for my English, Thx before

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0 Former Member over 11 years ago

thx for the answer. I also had looking for the example and cannot found anything.
I got an idea to get the manage the uart using the second core of cortex A9, so the first core processor still can do the calculation. is that possible?
can both of the core share the same RAM?

thx before
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0 bhfletcher over 11 years ago in reply to Former Member

Both cores do share the same RAM, so using the one processor to communicate over UART and populate the RAM while using the other processor to read the RAM and perform calculations would be a possibility. Avnet covers a simple dual-processor example in the Vivado 2013.3 Zynq Software Development Speedway. This is available through your local FAE now and will soon be available online here.
Bryan
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0 Former Member over 11 years ago in reply to bhfletcher

Thx for the answer. It helps a lot. But I'm from indonesia and I think there is no local fae right now in my country. Is there any other tutorial show me how to use the second core?
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0 Former Member over 11 years ago in reply to bhfletcher

Thx for the answer. It helps a lot. But I'm from indonesia and I think there is no local fae right now in my country. Is there any other tutorial show me how to use the second core?
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