topic Re: lpuart1 RX interrupt issue on MIMxrt1175 in i.MX Processors

lpuart1 RX interrupt issue on MIMxrt1175

sai_shinde — Thu, 20 Oct 2022 06:33:49 GMT

Hi,

I have created new project in MCUexpresso for my custom board and set the peripheral.

1> I have set LPUART1 in peripheral for interrupt mode.

2> Copied the Interrupt handler name and pasted it on main.c

I have set break point is ISR but it doesn't stop in ISR.

I verified the UART TX and RX using polling based and it works fine in polling based.

LPUART peripheral setting in config tool is as below

Please let me know if I am missing anything.

jay_heng — Fri, 21 Oct 2022 02:50:30 GMT

You can compare tool generated code with below example code to find difference, it is simplest LPUART1 RX interrupt demo.

\SDK_2.12.0_MIMXRT1170-EVK\boards\evkmimxrt1170\driver_examples\lpuart\interrupt\cm7\lpuart_interrupt.c

sai_shinde — Fri, 21 Oct 2022 10:37:57 GMT

The problem was specific to weak linkage function.

PabloAvalos — Wed, 26 Oct 2022 21:51:13 GMT

Is the problem still persists ?

Regards.
Pablo.

sai_shinde — Thu, 27 Oct 2022 03:49:32 GMT

No, it's resolved.