(f)printf format %u %d broken ?

[Daniele]

Compiler PCD 4.068

#include <...30F6014.h>
#fuses XT_PLL16
#use delay(clock=120000000,restart_wdt)
#use rs232(baud=38400,UART2,ERRORS,STREAM=seriale)

void main()
{
unsigned int16 x;
signed int16 y;

x=60000;
fprintf(seriale,"%u ",x);
y=-1000;
fprintf(seriale,"%d ",y);

while(1);
}


the result on RS232 is
60000 64536

but...

It would be
60000 -1000

or not?

Of course I tried a lot of %u %d &ld %lu signed unsigned casting....before write...

Regards
Daniele

[Guest]

My manual says -

Unsigned int (8 bits) = %u
Signed int (8 bits) = %d

Long Unsigned int (16 or 32 bits) = %Lu
Long Signed int (16 or 32 bits) = %Ld

(Thanks to PCM programmer for clarifying that a long in CCS printf terms is a 16 or 32 bit value).

HTH - Steve H.

[JoaoSantos]

Hello,
I hit a similar question here in this topic
http://www.ccsinfo.com/forum/viewtopic.php?t=33599

In my case seems it is a bug from PCWHD.
The only way that I can work it out is printing to a string first using printf, and that making a fprint %s, of that string.

Hope it helps
regards,

[Daniele]

Hi,

how I can use printf to write in a string?

if the bug is in printf how using this function in other way skip it?

regards.

[Daniele]

look this

...
x=(unsigned int16)60000;
printf("%Lu ",x);
y=(signed int16)-1000;
printf("%Ld ",y);
... this print "60000 64536 "

...
y=(signed int16)-1000;
printf("%Ld ",y);
x=(unsigned int16)60000;
printf("%Lu ",x);
... this print "-1000 -5536 "

seems that the first formatting will be forced to the second...

Daniele

[esa]

I try your code with PCH V4.055
And good working

You can see here, PCD is in develpoment and some error about printf :
http://www.ccsinfo.com/content.php?page=pcdstatus

Maybee, you can send a email directly to the CCS official support.

Regards
Eric

[Daniele]

unfortunally my PCD account start with 4.066 version (and it doesn't work)
and it's not possible download old version....

regards
Daniele

[JoaoSantos]

try something like this:

[Daniele]

no It doesn't work fot me...

#use rs232(baud=38400,UART2,ERRORS,STREAM=seriale)
char stringa[30];

x=(unsigned int16)60000;
y=(signed int16)-1000;
fprintf(stringa,"%u %d",x,y); //*****
fprintf(seriale,stringa);

the line //****** give...

*** Error 130 "prova.c" Line 20(31,32): Stream must be a constant in the valid range ::


now I'll write my function to convert signed and unsigned to string ... too many time lost for this...

[Daniele]

I forgot...

thanks and regards for now

I'll write you if can found a solution...

[Daniele]

my solution ...
not so beautifull but 10 minutes long...

void printSigned(signed int d)
{
if (d<0) { putc('-'); d=d*(-1);}
else { putc(' '); }
putc(d/10000+'0');
d=d%10000;
putc(d/1000+'0');
d=d%1000;
putc(d/100+'0');
d=d%100;
putc(d/10+'0');
d=d%10;
putc(d+'0');
}

void printUnsigned(unsigned int d)
{
putc(' ');
putc(d/10000+'0');
d=d%10000;
putc(d/1000+'0');
d=d%1000;
putc(d/100+'0');
d=d%100;
putc(d/10+'0');
d=d%10;
putc(d+'0');
}

[JoaoSantos]

ok if it works, its ok.
I don't know i does it gives you an error. Try and take out the casts and put the printf with the l versios (lu and ld).
regards,

[Ttelmah]

[JoaoSantos]