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C8051F580 printf question

Fausto Bartra

I am working with the C8051F580 MCU.

using my own hardware.

The board is connected to teraterm via UART0

8bits, 115200

I am trying to print a hex number, see very simple code below.

for some reason I always get two extra "zeros" added at the end.

#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdarg.h>
#include <float.h>
#include <stdlib.h>
//#include <math.h>
#include <c8051f58x.h>
#include "C8051F580_defs.h"
#include "compiler_defs.h"
#include "PUTCHAR.c"

unsigned char i;

i = 0x12;
printf("i = 0x%02Xh", i);

terminal shows:

i = 0x1200h <== two extra zeros, it does not matter if I add the (char) casting before "i" in the print expression.

Any suggestion will be appreciated

Thank you

Fausto Bartra

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