Hello All!

I have a biog problem please, help me!

HW: Aduc812 8052 microcont.
Ricoh RS5C372A RTC
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Description:
I have configured the external IT0 via the followings:

SETB EX0 ;int enabled
CLR IT0 ;level triggered mode
SETB EA ;

I have connected the wroten rtc to it via i2c. I configured the periodic interrupt time in rtc to 1 minit level triggered mode.

I am lighting 2 leds in the interrupt handler routin, and in the main routin take these to off.

In this manner, the leds are lighting continously->IT0 routin runs continously.
If I generate puls mode IT with the rtc and set the port to pulse mode it works fine. The only problem is, that in the pulse mode exists only 1 sec IT-periods but i doesnt need the seconds, only the change of mins.


Thnx, Peter