LP-AM263: How to configure DMA Tx Completion Interrupt in register level.

Sreeraj Nair

Part Number: LP-AM263

Hi Expert,

I have an application were in UART communication is happening through DMA. In this requirement, after every TX, I require the TX completion interrupt to be configured.

I'm planning to implement this complete thing in register level. I have already referred the example code in the MCU SDK but couldn't understand the code flow when we are writing the same in register level.

Could you please guide me on how to configure the DMA TX Completion IRQ in register level?

Thanks

Sreeraj

over 1 year ago

0 Nilabh Anand over 1 year ago

TI__Mastermind 44704 points

Hi Sreeraj,

Please take a look at this example: software-dl.ti.com/.../EXAMPLES_DRIVERS_UART_ECHO_DMA.html

Let me know if this helps.

0 Sreeraj Nair over 1 year ago in reply to Nilabh Anand

Prodigy 50 points

Hi Nilabh,

Actually we were looking into something like EDMA Interrupt Transfer in example code.

We have a requirement to monitor the transmit complete interrupt of UART over DMA, for which we are configuring the interrupt using EDMA_TPCC_IESR_RN register. Later we are monitoring the EDMA_TPCC_IPR_RN register and clearing the interrupt using EDMA_TPCC_ICR_RN register.

Currently we are facing an issue wherein we are getting the interrupt in-between transmission. If you could share us some examples which involves register level programming intended for similar kind of application, it would be really helpful.

Thanks,

Sreeraj

0 Nilabh Anand over 1 year ago in reply to Sreeraj Nair

TI__Mastermind 44704 points

Hi Sreeraj,

Sreeraj Nair said:
Actually we were looking into something like EDMA Interrupt Transfer in example code.

Please take a look at our documentation:

software-dl.ti.com/.../EXAMPLES_DRIVERS_EDMA_INTERRUPT_TRANSFER.html

Sreeraj Nair said:
If you could share us some examples which involves register level programming intended for similar kind of application, it would be really helpful.

As stated before, we have our example and following them you can refer to drivers for register level details. We do not have example that directly deal with register.

Let me know if you are having any issue with the examples.

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LP-AM263: How to configure DMA Tx Completion Interrupt in register level.