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Re: serial line ISR problem -- again:(


On Wed, Sep 10, 2003 at 12:30:20PM +0100, Chris Garry wrote:
> What is the value of the UART's 'Interrupt Enable' register?

with this code I get:
ier = 0x00
ier = 0x08
so this is correct.

/* check InterruptEnableRegister value */
HAL_READ_UINT8 (COM_ADDR + 1, ier);
printf ("ier = 0x%02x\n", ier);

/* make UART interrupt only on DCD transition */
HAL_WRITE_UINT8 (COM_ADDR + 1, (ier & 0xf0) | 0x08);

/* check InterruptEnableRegister value */
HAL_READ_UINT8 (COM_ADDR + 1, ier);
printf ("ier = 0x%02x\n", ier);

-- 
Piotr Trojanek

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