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MaJerle / stm32-usart-uart-dma-rx-tx

STM32 examples for USART using DMA for efficient RX and TX transmission
MIT License
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add "usart_rx_idle_line_irq_ringbuff_rtos" routine #15

Closed AnthonyYMH closed 3 years ago

AnthonyYMH commented 3 years ago

Could you add "usart_rx_idle_line_irq_ringbuff_rtos" routine, thank you.

MaJerle commented 3 years ago

Combining rtos and ringbuff example should give you expected result.

AnthonyYMH commented 3 years ago

I have an idea: 1、In the DMA interrupt, write data to the ringbuff. 2、In the UART idle interrupt, also write data to the ringbuff,and send the MessageQueue to the thread,read the ringbuff for data packet processing. Can I do it like this? And I don't understand the effect of the HT interrupt.I think it's okay to delete. Thank you！

MaJerle commented 3 years ago

No.

In the DMA TC & HT and in USART IDLE irq, do the same thing.

In thread, read ringbuff data and do you stuff.

HT irq is indeed very necessary to have stable communication.

AnthonyYMH commented 3 years ago

No.

In the DMA TC & HT and in USART IDLE irq, do the same thing.

  • Write data to ringbuff
  • Send message queue to thread

In thread, read ringbuff data and do you stuff.

HT irq is indeed very necessary to have stable communication.

Got it, thank you very much for your answer.