Hi Wolfgang
On Friday, May 27, 2011, Wolfgang Denk wd@denx.de wrote:
Dear Graeme Russ,
In message 4DDF543D.6020506@gmail.com you wrote:
I think we will need to define get_timer() weak - Nios will have to override the default implementation to cater for it's (Nios') limitations
Please don't - isn't the purpose of this whole discussion to use common code for this ?
Yes, but Nios is particularly bad - It has a 10ms tick counter :(
I don't see reason for hamstring other platforms when a simply weak function can get around it
Why does NIOS require a different get_timer() implementation?
Nobody claims that get_timer() has any specific resolution. It is perfectly legal that a loop like
for (;;) { u32 t = get_time();
printf("t=%ul\n", t); }
returns 100 millisecond increments.
Except everyone expects it to tick at something vaguely close to 1ms. When you comment about accuracy, I didn't expect 1000% error was acceptable...
Regards,
Graeme