Lpc2000

LPC2138 with IAR environment

---
volatile unsigned long ul0;

        // interrupts are disabled at this point to be sure
        // they are not cause of problem 

	IOCLR0 = 0x80000000;	// gpio_RFMODEM_RESET_P0_31_o;
	ul0 = IOPIN0;	
	
	IOSET0 = 0x80000000;	// gpio_RFMODEM_RESET_P0_31_o;
	ul0 = IOPIN0;	
	

... function goes on
---

THE PROBLEM IS THE HIGH ORDER BIT IN ul0 IS NEVER SET AFTER READING 
IOPIN0 - THE HIGH ORDER BIT DOES NOT REFLECT THE ACTUAL P0.31 OUTPUT 
LEVEL THAT I SEE ON THE SCOPE - it always remains low while the 
p0.31 output changes accordingly

Tried on two sets of hardware ... it doesn't get any simpler ... 
maybe I've been staring too long. Is there a problem in the part?
Anybody?














	
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