tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC11U6X/TOOLCHAIN_GCC_CR/TARGET_LPC11U68/mtb.c

   1 //*****************************************************************************
   2 //   +--+
   3 //   | ++----+
   4 //   +-++    |
   5 //     |     |
   6 //   +-+--+  |
   7 //   | +--+--+
   8 //   +----+    Copyright (c) 2013 Code Red Technologies Ltd.
   9 //
  10 //  mtb.c
  11 //
  12 // Optionally defines an array to be used as a buffer for Micro Trace
  13 // Buffer (MTB) instruction trace on Cortex-M0+ parts
  14 //
  15 // Version : 130502
  16 //
  17 // Software License Agreement
  18 //
  19 // The software is owned by Code Red Technologies and/or its suppliers, and is
  20 // protected under applicable copyright laws.  All rights are reserved.  Any
  21 // use in violation of the foregoing restrictions may subject the user to criminal
  22 // sanctions under applicable laws, as well as to civil liability for the breach
  23 // of the terms and conditions of this license.
  24 //
  25 // THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
  26 // OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
  27 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
  28 // USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
  29 // TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
  30 // CODE RED TECHNOLOGIES LTD.
  31 //
  32 //*****************************************************************************
  33
  34 /*******************************************************************
  35  * Symbols controlling behavior of this code...
  36  *
  37  * __MTB_DISABLE
  38  *     If this symbol is defined, then the buffer array for the MTB
  39  *     will not be created.
  40  *
  41  * __MTB_BUFFER_SIZE
  42  *     Symbol specifying the sizer of the buffer array for the MTB.
  43  *     This must be a power of 2 in size, and fit into the available
  44  *     RAM. The MTB buffer will also be aligned to its 'size'
  45  *     boundary and be placed at the start of a RAM bank (which
  46  *     should ensure minimal or zero padding due to alignment).
  47  *
  48  * __MTB_RAM_BANK
  49  *     Allows MTB Buffer to be placed into specific RAM bank. When
  50  *     this is not defined, the "default" (first if there are
  51  *     several) RAM bank is used.
  52  *******************************************************************/
  53
  54 // Ignore with none Code Red tools
  55 #if defined (__CODE_RED)
  56
  57 // Allow MTB to be removed by setting a define (via command line)
  58 #if !defined (__MTB_DISABLE)
  59
  60   // Allow for MTB buffer size being set by define set via command line
  61   // Otherwise provide small default buffer
  62   #if !defined (__MTB_BUFFER_SIZE)
  63     #define __MTB_BUFFER_SIZE 128
  64   #endif
  65
  66   // Check that buffer size requested is >0 bytes in size
  67   #if (__MTB_BUFFER_SIZE > 0)
  68     // Pull in MTB related macros
  69     #include <cr_mtb_buffer.h>
  70
  71     // Check if MYTB buffer is to be placed in specific RAM bank
  72     #if defined(__MTB_RAM_BANK)
  73             // Place MTB buffer into explicit bank of RAM
  74             __CR_MTB_BUFFER_EXT(__MTB_BUFFER_SIZE,__MTB_RAM_BANK);
  75     #else
  76             // Place MTB buffer into 'default' bank of RAM
  77             __CR_MTB_BUFFER(__MTB_BUFFER_SIZE);
  78
  79     #endif  // defined(__MTB_RAM_BANK)
  80
  81   #endif // (__MTB_BUFFER_SIZE > 0)
  82
  83 #endif // !defined (__MTB_DISABLE)
  84
  85 #endif // defined (__CODE_RED)