#include  <stdio.h>
#include  <MYPRINTF.H>
#include  "SEGGER_RTT.h"
#include  "string.h"
 

static  int bInitPrint = 0;
static  char buffer[256] = {0};
int MyPrintf(const char* fmt, ...)
{ 
    if(bInitPrint==0)
    {
      bInitPrint = 1;      
      SEGGER_RTT_Init();
      SEGGER_RTT_ConfigUpBuffer(0, NULL, NULL, 0, SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL); 
      //SEGGER_RTT_WriteString(0, "SEGGER Real-Time-Terminal Sample\r\n"); 
      //SEGGER_RTT_WriteString(0, "###### Testing SEGGER_printf() ######\r\n");
    } 
    va_list args;
    va_start(args,fmt);
    int tmp_size = vsnprintf(buffer,sizeof(buffer),fmt,args);
    SEGGER_RTT_WriteString(0,buffer);
    int len  = strlen(buffer); 
    if((len>0)&&(buffer[len-2]!='\n')&&(buffer[len-2]!='\r'))
    {
        SEGGER_RTT_WriteString(0,"\r\n");
    } 
    va_end(args);
    return tmp_size;	
}