[PATCH] bsp/tms570: implemented support functions to satisfy complete

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Aug 21 12:33:01 UTC 2014


On 21/08/14 14:28, Pavel Pisa wrote:
> Thanks for suggestion
>
> On Thursday 21 of August 2014 14:08:51 Sebastian Huber wrote:
>> For the _CPU_Counter_difference() please use
>>
>> c/src/lib/libbsp/shared/cpucounterdiff.c
>>
>> You need also a call to rtems_counter_initialize_converter() with the right
>> frequency.
>
> Is this used for _CPU_Counter_read (160 MHz in our case) or for
> benchmark_timer_read (1 MHz in our case now).

It is used rtems_counter_delay_nanoseconds() function which uses 
_CPU_Counter_read().

> Or should we use
> _CPU_Counter_read for benchmark_timer_read to unify these?

It is possible to write a benchmark timer which uses the CPU counter and works 
for all BSPs.  I simply had no time yet to do this.

-- 
Sebastian Huber, embedded brains GmbH

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