Hello,
I am trying to create an fprintf that outputs all characters at once to the serial port.
I thought that the easiest way to do this is to create a function name fprintfm that takes the same parameters as fprintf. The fprintfm function would call fprintf with the parameters passed to fprintfm. Then, I would code the fputc function so that all characters passed to it are put it are put in a buffer. The buffer could then be passed to the serial ports driver send function.
I tried to test my idea with the code shown below and it doesn't seem to be working as can be seen by content of the fputcBuffer.
What am I doing wrong and is there a better way to do it. Also, how do I format code in my post?
Thanks,
Stephen
fputcBuffer = 0x000085C0@Program
[0 ... 99]
[0] = 0x9A08
[1] = 3
[2] = )
[3] = 3
[4] = 0x0000
[5] = 0x0000
[6] = .
[7] = .
[8] = .
[9] = .
[10] = .
[11] = .
[12] = .
[13] = .
[14] = .
[100 ... 127]
[code]
#include <stdio.h>
#include "format.h"
#include <stdarg.h>
signed char fputcBuffer[128];
int fputcBufferIndex = 0;
struct __FILE {
int handle;
};
FILE __stdout;
int fprintfm(FILE *_fp, const char *_format, ...) {
va_list _ap;
int rval;
va_start(_ap, _format);
rval = fprintf(_fp, _ap);
va_end(_ap);
return rval;
}
int fputc(int ch, FILE *f) {
fputcBuffer[fputcBufferIndex++] = (signed char)ch;
return ch;
}
int main(void) {
FILE pFile = __stdout;
int a = 20;
fprintfm(&pFile, "\n\rError - ???!!!%d",a);
}
[\code]
