Hi,
I have this set by default. There must be something else.
Vaclav
> Hi,
>
> Seems very similair to a problem i had recently with an 18f4520.
> As someone on this mailinglist pointed out, the extended instruction set had
> to be disabled.
> To do this add _XINST_OFF_4L to the __CONFIG4L initialisation.
>
> Regards,
> -Bastiaan
>
> On Thursday 30 October 2008 09:35:36 Vaclav Peroutka wrote:
> > Hello all,
> >
> > yesterday I experimented with printf() on PIC18F2580. I included stdio.h, I
> > defined void PUTCHAR(char c) and I set stdout=STREAM_USER.
> >
> > PIC sent some proper string just during the programming. But after I
> > switched normal supply, I got nothing on UART. But program run ok (flashing
> > LED loop).
> >
> > So I removed stdio.h and wrote
> > void printf( char * aStr) {
> > while (*aStr) {
> > PUTCHAR(*aStr);
> > aStr++;
> > }
> > }
> >
> > With this function I get funny characters. If I tried printf("CAN terminal
> > test"); , I got following sequence of characters: 0xC3, 0xC1, 0xCE, 0x20,
> > 0xF4, 0xE5, ... etc. Thus, with bit7 set for any character except space. If
> > I used PUTCHAR('C'); PUTCHAR('A'); just before printf(), for couple of
> > chars it went well. But then again after approx. 10 characters, it got
> > crazy. After I change something small (for example I add or remove one
> > PUTCHAR() ) the program even freezes somewhere.
> >
> > I found that strings are put into program memory and inside my printf(),
> > gptrget() is used. Can I have some problem with internal libraries of PIC16
> > ?
> >
> > Thank you for help,
> > Vaclav
> >
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