Cyg_Clock::Cyg_Clock
(
  cyg_resolution resolution /* resolution */
)

All a clock is is a counter with an associated resolution. It's a class derived from Cyg_Counter. All you use it for is to store and save resolutions of the clock.

Since this is a derived class, study the "counter" documentation for more information on counters.

Cyg_Clock::~Cyg_Clock
(
  void
)

cyg_resolution Cyg_Clock::get_resolution
(
  void
)

void Cyg_Clock::set_resolution
(
  cyg_resolution resolution /* new resolution */
)

void Cyg_Clock::get_other_to_clock_converter
(
  cyg_uint64       ns_per_other_tick, /* ns/tick of the other clock */
  struct converter *pcc               /* conversion struct          */
)

This, as far as I can tell, sets up a conversion from one clock to another. This must be used in conjunction with Cyg_Clock::convert to be of any use. This is so you can relate one clock (or counter) to another.

This converts from the other clock to this clock.

the struct converter is: struct converter {cyg_uint64 mul1, div1, mul2, div2;}. Clock ticks = (((otherticks*mul1)/div1)*mul2/div2)

void Cyg_Clock::get_clock_to_other_converter
(
  cyg_uint64       ns_per_other_tick, /* ns/tick of the other clock */
  struct converter *pcc               /* conversion struct          */
)

This, as far as I can tell, sets up a conversion from one clock to another. This must be used in conjunction with Cyg_Clock::convert to be of any use. This is so you can relate one clock (or counter) to another.

This converts from this clock to the other clock.

the struct converter is: struct converter {cyg_uint64 mul1, div1, mul2, div2;}. Clock ticks = (((otherticks*mul1)/div1)*mul2/div2)

static cyg_tick_count Cyg_Clock::convert
(
  cyg_tick_count   value, /* ns/tick of this clock */
  struct converter *pcc   /* conversion struct     */
)

I think this does a conversion from this clock value to another. I need help with this. It's not obvious why these are broken up into 3 seperate function calls. I don't see many people needing this functionality.