topic Re: Simple UART Interrupt Routine in Kinetis Software Development Kit

Simple UART Interrupt Routine

philhale — Thu, 24 Dec 2015 00:03:43 GMT

I am working on a very simple project that interacts with a UART port using interrupts. My plan is to use the Peripheral Driver, "fsl_uart", and the RX/TX callback routines.

At one point, I thought I got it to enter UART_DRV_IRQHandler but haven't been able to get it to work again. Either way, it never got to uartCom0_RxCallback when I entered a keystroke on the UART port. I have been able to get the UART_DRV_SendData and UART_DRV_ReceiveData in a polling kind of mode. My preference, at least on the receive side, is to always use the interrupt routine to process these inputs from the UART port.

Any ideas what is going on?

Thanks.

Phil

Re: Simple UART Interrupt Routine

Alice_Yang — Thu, 24 Dec 2015 02:39:14 GMT

Hello Phil.

There i a bug on the function of "UART_DRV_IRQHandler" , please add the two line to the

receive interrupt and send interrupt :

you can also refer to here :

The usage of UART callback function install

After fixed here , if your project still can not work well , please send you project to me .

Have a great day,
Alice Yang

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Re: Simple UART Interrupt Routine

philhale — Mon, 28 Dec 2015 17:37:16 GMT

Alice,

Thank you. I was not successful until I added a RX buffer. The modifications you suggested were required. Nothing worked without these changes so I thank you.

Thank you!

Phil

Re: Simple UART Interrupt Routine

Alice_Yang — Tue, 29 Dec 2015 02:05:46 GMT

Hi Phil,

Welcome !

Alice

Re: Simple UART Interrupt Routine

fanbowo — Mon, 23 Oct 2017 06:31:31 GMT

Thanks for your methode to solve this problem, I have been searching for the right way for about 6 hours tils I seeing your adding a RX buffer.