DM385 GPIO solution.

yang zheng

Intellectual 540 points

Other Parts Discussed in Thread: DM385

Recently I got a work that is about the IRQ.

The signal will pass to me through GP0_12(BALL NUMBER is AB31 ).

Any document and example of it will be of great help.

I don't know how to start with it.

Regards,

Yang.

over 10 years ago

0 Pavel Botev over 10 years ago

TI__Guru**** 170625 points

Hi Yang,

Refer to the below wiki pages:

processors.wiki.ti.com/.../TI81XX_PSP_GPIO_Driver_User_Guide
processors.wiki.ti.com/.../Configuring_GPIO_Interrupts

BR
Pavel

0 yang zheng over 10 years ago in reply to Pavel Botev

Intellectual 540 points

Hi Pavel,

I read about the documents you provide.

I got some questions.

After I run the .ko I made ,I can't see the gpio of mine in /sys/class/gpio. Is that right?

And I'm not sure about the number of my gpio.

In the dm385.pdf that I download from ti.com ,I only saw that my gpio is GP0[12] . It's not like the bank I saw in Linux PSP GPIO Driver Guide.

I have used the number like 13 and 41(as I saw PINCNTL41).

Regards,
Yang

0 Pavel Botev over 10 years ago in reply to yang zheng

TI__Guru**** 170625 points

yang zheng said:
After I run the .ko I made ,I can't see the gpio of mine in /sys/class/gpio. Is that right?

The below e2e thread has info regarding this.

yang zheng said:
And I'm not sure about the number of my gpio.

In the dm385.pdf that I download from ti.com ,I only saw that my gpio is GP0[12] .

GP0[12] is number 12.

BR
Pavel

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DM385 GPIO solution.