Create mtb.c

Author: kazu

libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC11U6X/TOOLCHAIN_GCC_CR/TARGET_LPC11U68/mtb.c

@@ -0,0 +1,85 @@
+//*****************************************************************************
+//   +--+       
+//   | ++----+   
+//   +-++    |  
+//     |     |  
+//   +-+--+  |   
+//   | +--+--+  
+//   +----+    Copyright (c) 2013 Code Red Technologies Ltd.
+//
+//  mtb.c 
+//
+// Optionally defines an array to be used as a buffer for Micro Trace
+// Buffer (MTB) instruction trace on Cortex-M0+ parts
+//
+// Version : 130502
+//
+// Software License Agreement
+// 
+// The software is owned by Code Red Technologies and/or its suppliers, and is 
+// protected under applicable copyright laws.  All rights are reserved.  Any 
+// use in violation of the foregoing restrictions may subject the user to criminal 
+// sanctions under applicable laws, as well as to civil liability for the breach
+// of the terms and conditions of this license.
+// 
+// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
+// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
+// CODE RED TECHNOLOGIES LTD. 
+//
+//*****************************************************************************
+
+/*******************************************************************
+ * Symbols controlling behavior of this code...
+ *
+ * __MTB_DISABLE
+ *     If this symbol is defined, then the buffer array for the MTB
+ *     will not be created.
+ *
+ * __MTB_BUFFER_SIZE
+ *     Symbol specifying the sizer of the buffer array for the MTB.
+ *     This must be a power of 2 in size, and fit into the available
+ *     RAM. The MTB buffer will also be aligned to its 'size' 
+ *     boundary and be placed at the start of a RAM bank (which 
+ *     should ensure minimal or zero padding due to alignment).
+ * 
+ * __MTB_RAM_BANK
+ *     Allows MTB Buffer to be placed into specific RAM bank. When 
+ *     this is not defined, the "default" (first if there are 
+ *     several) RAM bank is used.
+ *******************************************************************/
+
+// Ignore with none Code Red tools
+#if defined (__CODE_RED)
+
+// Allow MTB to be removed by setting a define (via command line)
+#if !defined (__MTB_DISABLE)
+
+  // Allow for MTB buffer size being set by define set via command line
+  // Otherwise provide small default buffer
+  #if !defined (__MTB_BUFFER_SIZE)
+    #define __MTB_BUFFER_SIZE 128
+  #endif
+
+  // Check that buffer size requested is >0 bytes in size
+  #if (__MTB_BUFFER_SIZE > 0)
+    // Pull in MTB related macros
+    #include <cr_mtb_buffer.h>
+
+    // Check if MYTB buffer is to be placed in specific RAM bank
+    #if defined(__MTB_RAM_BANK)
+	    // Place MTB buffer into explicit bank of RAM
+	    __CR_MTB_BUFFER_EXT(__MTB_BUFFER_SIZE,__MTB_RAM_BANK);
+    #else
+	    // Place MTB buffer into 'default' bank of RAM
+	    __CR_MTB_BUFFER(__MTB_BUFFER_SIZE);
+
+    #endif  // defined(__MTB_RAM_BANK)
+
+  #endif // (__MTB_BUFFER_SIZE > 0)
+
+#endif // !defined (__MTB_DISABLE)
+
+#endif // defined (__CODE_RED)