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mjscott



Joined: 20 Apr 2004
Posts: 2

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PostPosted: Tue Apr 20, 2004 8:59 am     Reply with quote

I'm seeing an error with printf using signed int16. I'm always getting the last number to be returned as binary.

Example
(led_putch is an LED output routine)

signed int16 temp;
temp = 215;

printf(ledputch, "\n%ld", temp);

What I get passed to led_putch is '\n', '0x32', '0x31', '0x05'

If I change the format to "\n%lu" everything returns as ascii.

Anyone else seeing this?
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Apr 20, 2004 12:58 pm     Reply with quote

You didn't give your compiler version, which can make all
the difference in the world.

The following test program works OK with PCM vs. 3.190.
It produces this output on the terminal window:

Quote:
215
215
215


Code:
#include <16F877.h>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock = 4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

void ledputch(char c)
{
putc(c);
}

//=====================
main()
{
signed int16 temp;

temp = 215;

printf(ledputch, "\n%ld", temp);

while(1);
}
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