Enabling interrupts in ehrpwm in am335x-evm-07.00.00.00

Rakesh Ranjan1

Hi,

How can i enable interrupts for ehrpwm in am335x-evm-sdk-07.00.00.00 ?

I believe the driver is located at drivers/pwm/pwm-tiehrpwm.c

Rakesh

0 Titusrathinaraj Stalin over 9 years ago

Hi Rakesh,

We have to modify the board file for this,

Have you enabled EHRPWM support in board file ?

We need to modify the resource structure ".flags = IORESOURCE_IRQ" in your board file while you do "platform_device_register" for EHRPWM peripheral.

0 Rakesh Ranjan1 over 9 years ago in reply to Titusrathinaraj Stalin

Hi Titus,

I was able to generate PWM interrupts on ARM side. But i want to recieve the PWM interrupts on PRU-ICSS. Any pointers on how can I achieve it.

-Rakesh

0 Titusrathinaraj Stalin over 9 years ago in reply to Rakesh Ranjan1

Hi Rakesh,

Please refer the AM335x's "PRU-ICSS" reference guide (PRU-ICSS interrupt chapter).

http://mythopoeic.org/BBB-PRU/am335xPruReferenceGuide.pdf

https://github.com/beagleboard/am335x_pru_package

http://elinux.org/Ti_AM33XX_PRUSSv2

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