Requirement:
Receive every byte of data over uart, as I need to look for r and then process numbers before it, use interrupt driven code for better resource usage.
What I have tried:
Enable uart in cubeMX, add DMA request for uart in circular mode.
Then in simulink, I added a Hardware Interrupt Block and selected the DMA channel, which i set for uart, as interrupt source. I am checking only ‘TC’ event as interrupt source in hardware manager block.
Issue:
The code compiles and runs without error. But the triggered subsystem(function call) connected to Hardware Interrrupt Block never runs since my values counter never increments in the subsystem. I think that DMA is configured but it is not started properly by simulink to generate interrupts.
I have tried using Hardware interrupt block with External interrupts from button push, in that case, my interrupt driven counter increments. But when switch interrupt source to the DMA attached to uart RX, no interrupt occurs.
Question:
Has anybody any idea how can I generate interrupts from DMA block when it receives one word (4bytes) from UART and use the Hardware Interrupt block to call my triggered subsytem to process those bytes.
Thanks.Requirement:
Receive every byte of data over uart, as I need to look for r and then process numbers before it, use interrupt driven code for better resource usage.
What I have tried:
Enable uart in cubeMX, add DMA request for uart in circular mode.
Then in simulink, I added a Hardware Interrupt Block and selected the DMA channel, which i set for uart, as interrupt source. I am checking only ‘TC’ event as interrupt source in hardware manager block.
Issue:
The code compiles and runs without error. But the triggered subsystem(function call) connected to Hardware Interrrupt Block never runs since my values counter never increments in the subsystem. I think that DMA is configured but it is not started properly by simulink to generate interrupts.
I have tried using Hardware interrupt block with External interrupts from button push, in that case, my interrupt driven counter increments. But when switch interrupt source to the DMA attached to uart RX, no interrupt occurs.
Question:
Has anybody any idea how can I generate interrupts from DMA block when it receives one word (4bytes) from UART and use the Hardware Interrupt block to call my triggered subsytem to process those bytes.
Thanks. Requirement:
Receive every byte of data over uart, as I need to look for r and then process numbers before it, use interrupt driven code for better resource usage.
What I have tried:
Enable uart in cubeMX, add DMA request for uart in circular mode.
Then in simulink, I added a Hardware Interrupt Block and selected the DMA channel, which i set for uart, as interrupt source. I am checking only ‘TC’ event as interrupt source in hardware manager block.
Issue:
The code compiles and runs without error. But the triggered subsystem(function call) connected to Hardware Interrrupt Block never runs since my values counter never increments in the subsystem. I think that DMA is configured but it is not started properly by simulink to generate interrupts.
I have tried using Hardware interrupt block with External interrupts from button push, in that case, my interrupt driven counter increments. But when switch interrupt source to the DMA attached to uart RX, no interrupt occurs.
Question:
Has anybody any idea how can I generate interrupts from DMA block when it receives one word (4bytes) from UART and use the Hardware Interrupt block to call my triggered subsytem to process those bytes.
Thanks. stm32 dma, stm32 uart, stm32 simulink MATLAB Answers — New Questions

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