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

Can you guard the critical part of your 25ms routine against interrupts; the FIFO is 8 characters deep; you have a window of about 600 microseconds before you lose serial data?

Maybe I am reading it wrong?
See "Figure 19-9: UART RxFIFO and TxFIFO Interrupt"
Zynq-7000 AP SoC Technical Reference Manual
UG585 (v1.7) February 11, 2014
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0 Former Member over 11 years ago

Can you guard the critical part of your 25ms routine against interrupts; the FIFO is 8 characters deep; you have a window of about 600 microseconds before you lose serial data?

Maybe I am reading it wrong?
See "Figure 19-9: UART RxFIFO and TxFIFO Interrupt"
Zynq-7000 AP SoC Technical Reference Manual
UG585 (v1.7) February 11, 2014
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

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