create a real sawtooth in simulink

many blocks in simulink like signal generator seem not to be able to create perfect signals.i use Signal Generator--->Scope. signal generated is sawtooth 10^7hz and amplitude=2.

http://www.mediafire.com/imageview.php?quickkey=a7l6ys2zvr65f33 http://www.mediafire.com/download.php?01t3tnbjn9b5g2h

so are there any means that I get a perfect ,normalized sawtooth between -1 and 1 values?

the step is 1e-9.

same almost applies to the sawtooth function of matlab which does not produce accurate waveforms!

Answer 1

[TAB]

You can create your own generator block using simulink block logic, stateflow, s-function or embedded matlab function.

See similar submission here.

[K E]

Very useful, thanks for posting TAB.