Re: TR: interfacing FPGA to AT91RM9200

[arasv@xxxxxxxxxxxxxx]

> Pls check below.
>
> Kind regards,
> Andrejs Cainikovs
>
>
> Aras Vaichas wrote:
>> [snip]
>>
>> (*) IRQs
>>     // initialise the IRQ pin hardware
>>     at91_set_gpio_input( reader_irq, 1);
>>     at91_set_deglitch( reader_irq, 1);
>>     at91_set_A_periph( reader_irq, 1);
>>
> I thought irq pin was the input, not peripheral?

Not sure what you mean? Are you asking why I've declared the GPIO pin as a
peripheral, and not as a GPIO interrupt source?

reader_irq is PB29 which is IRQ0 which is Peripheral A, so I might as well
let it have its own interrupt which isn't shared.

Does that make sense, or have I made a mistake somewhere?

The device driver works fine and has been working for a few years like that.

Aras


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