UART Transmit Interrupt Driven api not working perfectly

[Keval Patel]

I have one more problem. When I enable the Tx, the program is not moving out of the callback. and I have to disable the TX manually from callback everytime. The normal flow should be, after the check o TX is complete,  we have to disable the TX. But the program is not behaving in this way.
If you want to check this behaviour, you can do so in my project by observing how I have done it.4527.echo_bot.zip

[Naeem Maroof]

Hi

The project you sent errors.

Which NCS version you are using?

Which callback you are referring to?

I have to disable the TX manually

Which part of the code is doing this?

after the check o TX is complete

do you mean uart_irq_tx_enable() or uart_tx_ready?

[Keval Patel]

i'm using NCS Version 2.6.0.
In Callback part i disable the irq_tx_disable function before the sending the data using fifo_fill.

As per API i need to call this tx_disable api after i get the uart_tx_complete returns true. but in my case i'm enable the uart_irq_tx  i do not return from my callback without the disable TX_interrupt.

[Naeem Maroof]

I will look into this and will update you when I have more information.

/Best, Naeem

[Naeem Maroof]

Hi Keval,

My apology as the case somehow slipped from my queue.

Is there any update at your end regarding this?

Let me know of current status.

Regards, Naeem

[Keval Patel]

Hello Naeem Maroof 

I'm still waiting for your reply or solution, i'm do not able to understand the  your Api's working behaviour.

Thank you.

[Naeem Maroof]

Hi Keval,

I can see that you started with the echo-bot sample, but then have substantially updated the code. Unfortunately, I can not do the review of your whole code. Also, the zephyr uart API is extensively documented here: UART API

Nonetheless, I have few comments as below.

I do not know what you are trying to achieve and how you are doing this.

Keval Patel said:

As per API i need to call this tx_disable api after i get the uart_tx_complete returns true.

That is not provided in the example (echobot), but yes, once the Transmission is complete, then you can Disable the Tx.

Keval Patel said:

but in my case i'm enable the uart_irq_tx  i do not return from my callback without the disable TX_interrupt.

what are you trying to say / do here? I did not get you.

I think you are trying to disable the TX once transmission is complete, 

and then after the printing (print_uart) you are checking if TX is ready and then you are enabling the TX.

So what error you are getting? Is there any output on the console?