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LPC2377 ISR not firing

John Gold

I have been trying different sample projects with interrupts, but I can not get the ISR to fire. I have tried BlinkyIRQ both in a board and the simulator, without success.

Is there a global IRQ Enable that needs to be set? I would think the examples would run correctly.

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  • 0 in reply to ImPer Westermark

    I did see this. I am running channel 4 with Timer0, which should be correct. One anomaly is that the VICVectPriority4 = 0x00000024 uses more than the lowest nibble, which is invalid according to the data sheet. When I change this to be VICVectPriority4 = 4;, the situation does not change, still no interrupt firing. I am including LPC23xx.h and LPC2300.s as a startup file.

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  • 0 in reply to ImPer Westermark

    I did see this. I am running channel 4 with Timer0, which should be correct. One anomaly is that the VICVectPriority4 = 0x00000024 uses more than the lowest nibble, which is invalid according to the data sheet. When I change this to be VICVectPriority4 = 4;, the situation does not change, still no interrupt firing. I am including LPC23xx.h and LPC2300.s as a startup file.

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