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spurious interrupts not simlated in arm7

jack jan over 19 years ago

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0 jack jan over 19 years ago in reply to jack jan

By the way, I resolve the problems by
1. use the software interrupt to start serial port transmission.

void __irq UART0Isr (void)
{
	uint8 i;
	VICSoftIntClear = 1<<ISN_UART0;
        .....
}
void putch(uint8 dat)
{
	while( ! uart0_xmit_queue.Add(dat))
	{
	}
	if((U0LSR & 0X20) == 0X20)
	{
		VICSoftInt = 1<<ISN_UART0;
	}
}

2. Set a valid handler for VICDefVectAddr:

void __irq DefIrq()
{
}

void SetDefaultIrq()
{
	VICDefVectAddr = (uint32)DefIrq;
}

Reply

0 jack jan over 19 years ago in reply to jack jan

By the way, I resolve the problems by
1. use the software interrupt to start serial port transmission.

void __irq UART0Isr (void)
{
	uint8 i;
	VICSoftIntClear = 1<<ISN_UART0;
        .....
}
void putch(uint8 dat)
{
	while( ! uart0_xmit_queue.Add(dat))
	{
	}
	if((U0LSR & 0X20) == 0X20)
	{
		VICSoftInt = 1<<ISN_UART0;
	}
}

2. Set a valid handler for VICDefVectAddr:

void __irq DefIrq()
{
}

void SetDefaultIrq()
{
	VICDefVectAddr = (uint32)DefIrq;
}

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