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Interrupt

Hello guys, can I monitor interrupt0 of 8051 by any h/w means like by LED or something? I have connected RTC DS12887 IRQ to INT0 however I couldn't see logic 1 on DMM

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0 Christoph Franck over 17 years ago in reply to Pratik Mahajan

So does it mean I need to exclusively read C register even if I serve the IRQ interrupt

Your interrupt service routine (running on the 8051) needs to read the C register of the RTC chip. How to do this is described in the datasheet of the RTC.
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0 Christoph Franck over 17 years ago in reply to Pratik Mahajan

So does it mean I need to exclusively read C register even if I serve the IRQ interrupt

Your interrupt service routine (running on the 8051) needs to read the C register of the RTC chip. How to do this is described in the datasheet of the RTC.
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0 Pratik Mahajan over 17 years ago in reply to Christoph Franck

Thanks guys for your valuable support - The project is working fine Just needed to do was read the register C of RTC on the occurrence of interrupt
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