GPIO BANK INTERRUPT

Hyungkeun Seo

Prodigy 150 points

Other Parts Discussed in Thread: OMAPL138

BOARD : OMAP-L138

TOOL : CCS v3.3

pspdrivers_01_30_00_06

dspbios : 5.33.06

I want to use GPIO bank interrupt.

this is bank8 pin8 interrupt init function.

and this is bank interrupt block.

I connect function generator(1Hz square signal) to GPIO8_8 pin. and compile -> program -> run....

program doesn't go to "IO_Bank8_isr"..

give me some advice.

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi,
Which board are you using ?
OMAPL138 Spectrum digital EVM or OMAPL138 LogicPD EVM or OMAPL138 LCDK board or custom board?
If its custom, what is your reference board ?

Could you attach the complete code that you are using , or using the example code without modifying anything ?

Try to debug the code, check the GPIO register (interrupt enable) through register window that you written.

0 Hyungkeun Seo over 10 years ago in reply to Titusrathinaraj Stalin

Prodigy 150 points

Thank you for reply...

I use custom board. I note that LogicPD EVM.

OMAP_L138_gpio_bank_test.zip

this is test source i'm using.

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi,
Have you tried this example code on your LogicPD EVM board ?
And you can modify this code for your GPIO (GPIO8_8 ).

C:\ti\pspdrivers_01_30_00_06\packages\ti\pspiom\examples\evmOMAPL138\gpio\build\ccs3

0 Titusrathinaraj Stalin over 10 years ago in reply to Titusrathinaraj Stalin

TI__Guru** 116100 points

Hi,

C:\ti\pspdrivers_01_30_00_06\packages\ti\pspiom\examples\evmOMAPL138\gpio\build\ccs3

I ran this example code on OMAPL138 LogicPD EVM board and able to get into ISR routine after SD card is inserted into board.

Void gpioInputIsr(Ptr ignore)
{
Gpio_PinCmdArg pinCmdArg;

/* To avoid compiler warnings */
ignore = ignore;
/* Clear the interrupt status */
pinCmdArg.pin = GPIO4_0_PIN;
Gpio_clearInterruptStatus(gpio0,&pinCmdArg);

flag=1;
}

You can take this code as a reference for your development.

Else, you have to cross verify the registers, PINMUX, GPIO PSC, GPIO IN/OUT registers etc.,

0 Hyungkeun Seo over 10 years ago in reply to Titusrathinaraj Stalin

Prodigy 150 points

thank you ~
I solve this problem... I check the circuit, the pins were connected gpio8_9..
after all, thank you~ for kindness.

0 Titusrathinaraj Stalin over 10 years ago in reply to Hyungkeun Seo

TI__Guru** 116100 points

Sounds good.
Thanks for your update.

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GPIO BANK INTERRUPT