ascii.c

来自「无刷电机驱动原理」· C语言 代码 · 共 58 行

//!
//! @file ascii.c
//!
//! Copyright (c) 2004
//!
//! Please read file license.txt for copyright notice.
//!
//! @brief This file manages the 祍hell task for file system.
//!
//!
//! @version 1.1 (mc100_bldc_sensorless_0_1_0)
//!
//! @todo
//! @bug
//!/

//_____  I N C L U D E S ___________________________________________________

#include "ascii.h"


//_____ M A C R O S ________________________________________________________

//_____ D E F I N I T I O N S ______________________________________________

//_____ D E C L A R A T I O N S ____________________________________________



//! @brief This function returns the binary value of an ascii digit.
//!
//!
//! @param none
//!
//! @return none
//!
//!/
U8 ascii_to_bin (U8 c)
{
  if (c>='a') return(c-('a'-0x0A));
  if (c>='A') return(c-('A'-0x0A));
  return(c-'0');
}

//! @brief This function returns the ascii value of a quartet
//!
//!
//! @param none
//!
//! @return none
//!
//!/
U8 bin_to_ascii (U8 c)
{
  if (c>=0x0A) return (c+('A'-0x0A));
  return (c+'0');
}