firmware/usbdrv/oddebug.c

   1 /* Name: oddebug.c
   2  * Project: AVR library
   3  * Author: Christian Starkjohann
   4  * Creation Date: 2005-01-16
   5  * Tabsize: 4
   6  * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
   7  * License: Proprietary, free under certain conditions. See Documentation.
   8  * This Revision: $Id: oddebug.c 215 2006-07-10 21:54:51Z cs $
   9  */
  10
  11 #include "oddebug.h"
  12
  13 #if DEBUG_LEVEL > 0
  14
  15 static uchar Warning__Never_compile_production_devices_with_debugging;
  16 /* The "#warning" preprocessor directive is non-standard. The unused static
  17  * variable above should give a compiler warning on all compilers.
  18  */
  19
  20 static void uartPutc(char c)
  21 {
  22     while(!(ODDBG_USR & (1 << ODDBG_UDRE)));    /* wait for data register empty */
  23     ODDBG_UDR = c;
  24 }
  25
  26 static uchar    hexAscii(uchar h)
  27 {
  28     h &= 0xf;
  29     if(h >= 10)
  30         h += 'a' - (uchar)10 - '0';
  31     h += '0';
  32     return h;
  33 }
  34
  35 static void printHex(uchar c)
  36 {
  37     uartPutc(hexAscii(c >> 4));
  38     uartPutc(hexAscii(c));
  39 }
  40
  41 void    odDebug(uchar prefix, uchar *data, uchar len)
  42 {
  43     printHex(prefix);
  44     uartPutc(':');
  45     while(len--){
  46         uartPutc(' ');
  47         printHex(*data++);
  48     }
  49     uartPutc('\r');
  50     uartPutc('\n');
  51 }
  52
  53 #endif