AM625: Using MCU GPIO interrupt on Linux

cao zhixian

Prodigy 180 points

Part Number: AM625

Hello TI

The version of SDK I use: ti-processor-sdk-linux-rt-am62xx-evm-08.06.00.42

MCU SDK Version：mcu_plus_sdk_am62x_08_06_00_18

I modified the following routine to find that the interrupt did not trigger.

C:\ti\mcu_plus_sdk_am62x_08_06_00_18\examples\drivers\gpio\gpio_input_interrupt\am62x-sk\m4fss0-0_nortos

Modify the device tree as follows

&mcu_gpio0 {
        status = "reserved";
};
&mcu_gpio_intr {
        status = "reserved";
};

Modify syscfg as follows

When testing the program, I found that the interrupt did not trigger. I would like to know if there are other places to configure. I hope you can help.

over 2 years ago

0 Swargam Anil over 2 years ago

TI__Guru 50587 points

Hello Cao zhixian ,

The pin MUC_GPIO0_19 comes under GPIO Bank 1.

So, you need to change the below value to SRC_IDX_BASE_MCU_GPIO_BANK_1 in the Sciclient_gpioIrqSet function in the board.c file.

rmIrqReq.src_index = SRC_IDX_BASE_MCU_GPIO_BANK_0

Regards,

S.Anil.

0 cao zhixian over 2 years ago in reply to Swargam Anil

Prodigy 180 points

Thank you very much for your help. The problem has been solved.

0 Swargam Anil over 2 years ago in reply to cao zhixian

TI__Guru 50587 points

Hello Cao zhixian ,

Thanks for the update.

I am closing this thread and open new threads if you have any.

Regards,

S.Anil.

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AM625: Using MCU GPIO interrupt on Linux