Messages in this thread | | | Date | Thu, 5 May 2005 12:32:54 +0100 | From | Luke Kenneth Casson Leighton <> | Subject | Re: tricky challenge for getting round level-driven interrupt problem: help! |
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On Wed, May 04, 2005 at 10:43:35PM +0100, Alan Cox wrote:
> > hence the redesign to do alternate read-write-read-write, and making > > reads exclusive of writes, etc. > > and maybe even turn the IRQ off and use a timer if its slow and not > sensitive to latency.. ?
good suggestion...
been there, tried that [i really _am_ sending to lkml as last resort, not first!]
jiffies equals approx 250? per second?
baud rate from PIC is determined by GPS - 4800 baud - approx 600 per second.
so that'd explain why i only got one character every 3.
*cold sweat*.
i could always use the FIQ, which will be running off the back of the Audio DAC/ADC's interrupts, 8khz....
*shudder*...
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