[uClinux-dev] Serial error output ?After sti() operate?

Gongfen Qiu water018 at 163.com
Thu Oct 20 05:24:21 EDT 2005


hi,
It's the hardware's problem about PLL and time.Then It's OK.

On Wednesday 19 October 2005 16:21, Gongfen Qiu wrote:
> Hi,
>
> 	I got a strange problem.My serial has some error output.(arm7tdmi,
> uClinux, W90N740 borad).
>
> this function(init/main.c):
> asmlinkage void __init start_kernel(void)
> {
> 	--------------------------------------
> 	if printk() write here ,then work very good.
>
> 	sti();
>
> 	if printk() here--------> has some error output(serial). about 0.1%?
> 	______________________
> }
>
> Maybe about interrupt? Then I read the interrupt mask register, the only
> time0 interrupt is enable. Why do this sti ,then got some error serial, and
> every reset has different results.
>
> Anyone help me?
>
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