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apiccianoit · 2014-02-14

Posted on February 14, 2014 at 18:01Hi All,reading the reference manual of the STM32, I have a question related to a transfer peripheral to memory using DMA, direct mode ( no FIFO )In section 9.3.12, Direct Mode paragraph, i found:Direct modeBy defa...

apiccianoit · 2014-02-17

Posted on February 17, 2014 at 15:09Thank you for your answer. I think I'll make some tests in Direct mode.

apiccianoit · 2014-02-17

Posted on February 17, 2014 at 12:12The reason is that the bytes arriving from the UART is unknown.Suppose I set the FIFO threshold to 4 bytes, but only 2 or 3 bytes arriving from the UART.I need to transfer them as soon as possible, and not wait th...

apiccianoit · 2014-02-17

Posted on February 17, 2014 at 11:31Thank you for your answer.My use case is a byte level transfer: a byte arriving from the peripheral ( UART @921600 ) and that byte moved into a memory array.I don't want to use the FIFO mode in the DMA, but I want...

apiccianoit · 2014-02-17

Posted on February 17, 2014 at 11:23The model is STM32F205.With very high speed I mean a peripheral sending bytes very fast. E.g. UART @921600 ( a byte every 10us )thank you very much

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