STM32 UART #5 || Receive Data using IDLE Line || Interrupt || DMA

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Комментарии
Автор

Best tutorial ever: Just what I needed, precise, concise information without so much beating around the bush.

antanare
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It is perfect and simple as always.... Good job...

kamilmeric
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Thanks for the new video. Is there a resource you would recommend to learn more ?

mahmutbucuk
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You are just an amazing man!! Thank you

alimamdouh
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Is it possible to configure the timeout at which the controller considers an Idle event occurred?

DanielBazac
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How do we tell the DMA the size of the Rx buffer, in order to avoid overflow when sending a large file?

MrCaduru
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I am using IDLE line to implement a Modbus slave on RS485 bus. After received the frame, stm32 would send a response to the master. But the next received frame would have a garbage byte in front of the real frame. Very wired.

murrayzhong
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How do you reset the index in the DMA buffer so that after each occurred Idle event the next received bytes are stored at the beginning of the buffer?

DanielBazac
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Can you make the Video on how to configure the UART in DMA so that another UART Rx via Intrupt can trigger the UART DMA to transfer.

AmanSharma-zz
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I think that there is an issue on the latest example.
Assumed that the last chunk is 250 bytes (DMA Size is 250) and the next one chunk is 32bytes (DMA Size is 282), the condition about Size == RX_SIZE(256) will not be executed.

thanosprionas
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Ive been messing around with an F401 Black pill, st-link to program it, and usb to ttl adapter to send data. I cannot for the life of me get it to do anything at all. Nothing happens. The program uploads fine. I have tried swapping the tx/rx pins around.

Keper