capture driver on AM3517

Cleiton Marques

Hi,

I'm working with the kernel 2.6.37 and i'm trying to use GPTIMER10 and GPTIMER11 on capture mode at the GPIO 54 and 181. I'm reading the generated capture events with success, but i'm trying to generate a interrupt in the capture event configuring the register (GPTi.TIER[2] TCAR_IT_ENA), how can I register a subroutine(interrupt handler) for this interrrupt?

Thanks,

Cleiton

over 12 years ago

0 Cvetolin Shulev-XID over 12 years ago

TI__Guru 65405 points

Hi Cleiton,

The configuring of the TIER register is the right way to generate an interrupt. You need to set the capture interrupt enable bit in the GPTi.TIER[2] TCAR_IT_ENA bit to issue an interrupt on edge detection. See the examples in Figure 16-10 and Figure 16-11 in the TRM.

Tsvetolin Shulev

0 Cleiton Marques over 12 years ago in reply to Cvetolin Shulev-XID

Prodigy 80 points

Hi Shulev

I solved the problem using the function: setup_irq (linux/irq.h).

before that, i was trying register the subroutine using request_irq.

Cleiton.

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capture driver on AM3517