[En-Nut-Discussion] interrupt sense control for RTL8019AS

[Harald Kipp]

Rodrigue,

The original Ethernut 1.3 design does have an inverter gate and
uses level triggered mode.

RTL_IRQ_RISING_EDGE is not defined for Ethernut 1.3 and thus,
RTL_RISING_EDGE_MODE() is not included in the code for this board:

#ifdef RTL_IRQ_RISING_EDGE
     /* Support of rising edge interrupts for HW w/o inverter gate */
     RTL_RISING_EDGE_MODE();
#endif

Harald

At 10:49 28.10.2006 -0700, you wrote:

>Sorry, but I don't understand. For Ethernut 1.3Rev. G, RTL_SIGNAL_IRQ is
>equal to INT5 (cf. avrpio.h):

...

>So for me it's the rising edge which is enabled, no?
>
>Could you explain me how it works, please? It's no very clear in my mind?