clock() and time()

Douglas Corarito

How does one interface these routines to an on-board RTC for time source?

These routines work fine under emulation due to emulator providing clock from host PC, however, our implementation has an RTC on the board and I need to hook up the C RTS Libs to the RTC.

Is this possible? Is the C time source code available?

How are folks handling this?

over 16 years ago

0 Archaeologist over 16 years ago

TI__Guru* 84285 points

The C compiler RTS library source code is available with every distribution, but these two functions are just wrappers around very low-level drivers which communicate with the debugger to get the answer from the host running the debugger. To access a hardware clock you'll have to find or implement another low-level driver and alter the library function to call that instead. [Edit 2010-01-11 "code" -> "source code"]

0 Douglas Corarito over 16 years ago in reply to Archaeologist

Intellectual 300 points

"C compiler RTS library code"... do you mean the source code? I can't find that with my distribution.

0 TimHarron over 16 years ago in reply to Douglas Corarito

TI__Mastermind 18130 points

Doug,

The RTS source is available in the \lib\rts.src file. This is an "archived" file which contains the entire source of each RTS file.

0 TimHarron over 16 years ago in reply to TimHarron

TI__Mastermind 18130 points

Just to add to this thread, the newer versions of the Code Generation Tools replaced the rts.src file with an rtssrc.zip file (easier to extract individual files). Additionally, the zip includes a makefile and some perl scripts to help make rebuilding a little easier.

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clock() and time()