Paolo Doz wrote:
Hi folks,
I'm developing a custom SPI driver (char device) on a MPC5200b, the
microcontroller linked as slave implements a protocol that must follow
strict timing constraints. I need to receive and send messages every
6msec.
What are your timing requirements? How much over/under 6ms can the
protocol handle?
Kernel threads might work, but then you're at the mercy of the
scheduler. You'd probably be better off using a timer or softirq.
If the latency requirements are really strict, your best bet would
probably be to use the -rt patches for the kernel. That requires
building a custom kernel though.
Chris
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