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Freescale KL25Z Stream implementation

Topic last updated 02 Apr 2013, by Masato YAMANISHI. 3 replies
Peter Drescher
05 Mar 2013

I'm porting my TFT lib to the KL25Z. It is working, but the TFT.claim(stdout) has some strange effects. The printf is working with a sort of delay. If I change the cursor position after a printf, this is done before finishing the printf. Some chars of the message appear on the new cursor position ??

The NXP version is working.

Peter Drescher
05 Mar 2013

The chars at the new position are printed with the next printf ....??

Mark Bauer
14 Mar 2013

what size of tft's are working with the kl25z?

Have you been using any of the ethernet library stuff?

Masato YAMANISHI
02 Apr 2013

I also encountered the phenomenon.
Parhaps, the printf uses line buffering and is working asynchronously.
I was able to work around by putting a '\n' at the end of the string, or fflush(stdout).