From db4bc4a525545b485162a8f95a4fbec2d5f9dac9 Mon Sep 17 00:00:00 2001
From: Yunjie Gu <yunjie.gu1@gmail.com>
Date: Mon, 22 Aug 2022 21:07:22 +0100
Subject: [PATCH] libc compatible

---
 bsp/tms320f28379d/.config            |  2 +-
 bsp/tms320f28379d/.cproject          | 49 ++++++++++++++--------------
 bsp/tms320f28379d/rtconfig.h         |  1 -
 bsp/tms320f28379d/rtconfig_project.h | 18 +++++-----
 4 files changed, 34 insertions(+), 36 deletions(-)

diff --git a/bsp/tms320f28379d/.config b/bsp/tms320f28379d/.config
index 78676c796b..6792c2d65c 100644
--- a/bsp/tms320f28379d/.config
+++ b/bsp/tms320f28379d/.config
@@ -8,7 +8,7 @@ CONFIG_SOC_TMS320F28X=y
 # RT-Thread Kernel
 #
 CONFIG_RT_NAME_MAX=8
-CONFIG_RT_USING_ARCH_DATA_TYPE=y
+# CONFIG_RT_USING_ARCH_DATA_TYPE is not set
 # CONFIG_RT_USING_SMP is not set
 CONFIG_RT_ALIGN_SIZE=4
 CONFIG_RT_THREAD_PRIORITY_8=y
diff --git a/bsp/tms320f28379d/.cproject b/bsp/tms320f28379d/.cproject
index ffc753da96..801e7f7584 100644
--- a/bsp/tms320f28379d/.cproject
+++ b/bsp/tms320f28379d/.cproject
@@ -27,18 +27,18 @@
 								<listOptionValue builtIn="false" value="PRODUCTS="/>
 								<listOptionValue builtIn="false" value="PRODUCT_MACRO_IMPORTS={}"/>
 							</option>
-							<option id="com.ti.ccstudio.buildDefinitions.core.OPT_CODEGEN_VERSION.2033685977" superClass="com.ti.ccstudio.buildDefinitions.core.OPT_CODEGEN_VERSION" value="20.2.4.LTS" valueType="string"/>
+							<option id="com.ti.ccstudio.buildDefinitions.core.OPT_CODEGEN_VERSION.2033685977" name="Compiler version" superClass="com.ti.ccstudio.buildDefinitions.core.OPT_CODEGEN_VERSION" value="20.2.4.LTS" valueType="string"/>
 							<targetPlatform id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.targetPlatformDebug.2073560761" name="Platform" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.targetPlatformDebug"/>
-							<builder buildPath="${BuildDirectory}" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.builderDebug.906005351" name="GNU Make.Debug" parallelBuildOn="true" parallelizationNumber="optimal" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.builderDebug"/>
+							<builder buildPath="${BuildDirectory}" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.builderDebug.906005351" keepEnvironmentInBuildfile="false" name="GNU Make" parallelBuildOn="true" parallelizationNumber="optimal" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.builderDebug"/>
 							<tool id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.compilerDebug.498712479" name="C2000 Compiler" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.compilerDebug">
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.LARGE_MEMORY_MODEL.592406762" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.LARGE_MEMORY_MODEL" value="true" valueType="boolean"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.UNIFIED_MEMORY.1773424661" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.UNIFIED_MEMORY" value="true" valueType="boolean"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION.938153386" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION.28" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT.617969619" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT.softlib" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT.894420455" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT.cla1" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT.8196870" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT.vcu2" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT.1633930775" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT.tmu0" valueType="enumerated"/>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.INCLUDE_PATH.104478283" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.INCLUDE_PATH" valueType="includePath">
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.LARGE_MEMORY_MODEL.592406762" name="Option deprecated, set by default (--large_memory_model, -ml)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.LARGE_MEMORY_MODEL" value="true" valueType="boolean"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.UNIFIED_MEMORY.1773424661" name="Unified memory (--unified_memory, -mt)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.UNIFIED_MEMORY" value="true" valueType="boolean"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION.938153386" name="Processor version (--silicon_version, -v)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.SILICON_VERSION.28" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT.617969619" name="Specify floating point support (--float_support)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.FLOAT_SUPPORT.softlib" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT.894420455" name="Specify CLA support (--cla_support)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.CLA_SUPPORT.cla1" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT.8196870" name="Specify VCU support (--vcu_support)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.VCU_SUPPORT.vcu2" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT.1633930775" name="Specify TMU support (--tmu_support)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.TMU_SUPPORT.tmu0" valueType="enumerated"/>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.INCLUDE_PATH.104478283" name="Add dir to #include search path (--include_path, -I)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.INCLUDE_PATH" valueType="includePath">
 									<listOptionValue builtIn="false" value="${PROJECT_ROOT}"/>
 									<listOptionValue builtIn="false" value="${PROJECT_LOC}/../../components/finsh"/>
 									<listOptionValue builtIn="false" value="${PROJECT_LOC}/../../components/drivers/include"/>
@@ -49,36 +49,37 @@
 									<listOptionValue builtIn="false" value="${PROJECT_LOC}/../../src"/>
 									<listOptionValue builtIn="false" value="${CG_TOOL_ROOT}/include"/>
 								</option>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEFINE.943297309" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEFINE" valueType="definedSymbols">
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEFINE.943297309" name="Pre-define NAME (--define, -D)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEFINE" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="CPU1"/>
 									<listOptionValue builtIn="false" value="_LAUNCHXL_F28379D"/>
+									<listOptionValue builtIn="false" value="RT_USING_LIBC"/>
 								</option>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL.2066289517" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL.SYMDEBUG__DWARF" valueType="enumerated"/>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WARNING.1239909133" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WARNING" valueType="stringList">
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL.2066289517" name="Debugging model" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DEBUGGING_MODEL.SYMDEBUG__DWARF" valueType="enumerated"/>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WARNING.1239909133" name="Treat diagnostic &lt;id&gt; as warning (--diag_warning, -pdsw)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WARNING" valueType="stringList">
 									<listOptionValue builtIn="false" value="225"/>
 								</option>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP.99472777" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP.off" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DISPLAY_ERROR_NUMBER.1531409382" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DISPLAY_ERROR_NUMBER" value="true" valueType="boolean"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI.1674322228" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI.coffabi" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP.99472777" name="Wrap diagnostic messages (--diag_wrap)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DIAG_WRAP.off" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DISPLAY_ERROR_NUMBER.1531409382" name="Emit diagnostic identifier numbers (--display_error_number, -pden)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.DISPLAY_ERROR_NUMBER" value="true" valueType="boolean"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI.1674322228" name="Application binary interface [See 'General' page to edit] (--abi)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.compilerID.ABI.coffabi" valueType="enumerated"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__C_SRCS.1118762855" name="C Sources" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__C_SRCS"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__CPP_SRCS.580044955" name="C++ Sources" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__CPP_SRCS"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__ASM_SRCS.1875967703" name="Assembly Sources" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__ASM_SRCS"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__ASM2_SRCS.96226802" name="Assembly Sources" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.compiler.inputType__ASM2_SRCS"/>
 							</tool>
 							<tool id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.linkerDebug.564840671" name="C2000 Linker" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exe.linkerDebug">
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.STACK_SIZE.1107373291" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.STACK_SIZE" value="0x400" valueType="string"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.MAP_FILE.549556505" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.MAP_FILE" value="${ProjName}.map" valueType="string"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.OUTPUT_FILE.305969292" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.OUTPUT_FILE" value="${ProjName}.out" valueType="string"/>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.LIBRARY.1286850816" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.LIBRARY" valueType="libs">
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.STACK_SIZE.1107373291" name="Set C system stack size (--stack_size, -stack)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.STACK_SIZE" value="0x400" valueType="string"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.MAP_FILE.549556505" name="Link information (map) listed into &lt;file&gt; (--map_file, -m)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.MAP_FILE" value="${ProjName}.map" valueType="string"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.OUTPUT_FILE.305969292" name="Specify output file name (--output_file, -o)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.OUTPUT_FILE" value="${ProjName}.out" valueType="string"/>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.LIBRARY.1286850816" name="Include library file or command file as input (--library, -l)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.LIBRARY" valueType="libs">
 									<listOptionValue builtIn="false" value="libc.a"/>
 								</option>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.SEARCH_PATH.1050942311" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.SEARCH_PATH" valueType="libPaths">
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.SEARCH_PATH.1050942311" name="Add &lt;dir&gt; to library search path (--search_path, -i)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.SEARCH_PATH" valueType="libPaths">
 									<listOptionValue builtIn="false" value="${CG_TOOL_ROOT}/lib"/>
 									<listOptionValue builtIn="false" value="${CG_TOOL_ROOT}/include"/>
 								</option>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP.789061494" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP.off" valueType="enumerated"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DISPLAY_ERROR_NUMBER.776276467" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DISPLAY_ERROR_NUMBER" value="true" valueType="boolean"/>
-								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.XML_LINK_INFO.1395132032" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.XML_LINK_INFO" value="${ProjName}_linkInfo.xml" valueType="string"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP.789061494" name="Wrap diagnostic messages (--diag_wrap)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP" value="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DIAG_WRAP.off" valueType="enumerated"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DISPLAY_ERROR_NUMBER.776276467" name="Emit diagnostic identifier numbers (--display_error_number)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.DISPLAY_ERROR_NUMBER" value="true" valueType="boolean"/>
+								<option id="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.XML_LINK_INFO.1395132032" name="Detailed link information data-base into &lt;file&gt; (--xml_link_info, -xml_link_info)" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.linkerID.XML_LINK_INFO" value="${ProjName}_linkInfo.xml" valueType="string"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__CMD_SRCS.1125010958" name="Linker Command Files" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__CMD_SRCS"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__CMD2_SRCS.828694879" name="Linker Command Files" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__CMD2_SRCS"/>
 								<inputType id="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__GEN_CMDS.1510668236" name="Generated Linker Command Files" superClass="com.ti.ccstudio.buildDefinitions.C2000_20.2.exeLinker.inputType__GEN_CMDS"/>
diff --git a/bsp/tms320f28379d/rtconfig.h b/bsp/tms320f28379d/rtconfig.h
index d7e86eb5df..ddeaa7c61f 100644
--- a/bsp/tms320f28379d/rtconfig.h
+++ b/bsp/tms320f28379d/rtconfig.h
@@ -9,7 +9,6 @@
 /* RT-Thread Kernel */
 
 #define RT_NAME_MAX 8
-#define RT_USING_ARCH_DATA_TYPE
 #define RT_ALIGN_SIZE 4
 #define RT_THREAD_PRIORITY_8
 #define RT_THREAD_PRIORITY_MAX 8
diff --git a/bsp/tms320f28379d/rtconfig_project.h b/bsp/tms320f28379d/rtconfig_project.h
index 9dd2d2e9e8..fb6a3dffbb 100644
--- a/bsp/tms320f28379d/rtconfig_project.h
+++ b/bsp/tms320f28379d/rtconfig_project.h
@@ -1,25 +1,23 @@
 /*
- * Copyright (c) 2006-2019, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
  * 2019-03-27     xuzhuoyi     the first version
+ * 2022-08-22     guyunjie     remove data types other than 8bit for compatibility with libc
  */
 
 #ifndef __RTCONFIG_PROJECT_H__
 #define __RTCONFIG_PROJECT_H__
 
-typedef signed   char                   rt_int8_t;      /**<  8bit integer type */
-typedef signed   short                  rt_int16_t;     /**< 16bit integer type */
-typedef signed   long                   rt_int32_t;     /**< 32bit integer type */
-typedef signed   long long              rt_int64_t;     /**< 64bit integer type */
-typedef unsigned char                   rt_uint8_t;     /**<  8bit unsigned integer type */
-typedef unsigned short                  rt_uint16_t;    /**< 16bit unsigned integer type */
-typedef unsigned long                   rt_uint32_t;    /**< 32bit unsigned integer type */
-typedef unsigned long long              rt_uint64_t;    /**< 64bit unsigned integer type */
-typedef unsigned long                   rt_size_t;      /**< Type for size number */
+/* C28X does not support 8bit data type by hardward (char = 16bit) so
+ * 8bit data types are not defined in its standard libs. We define them
+ * here. Be careful that the 8bit is actually 16bit. */
+#define UINT8_MAX      0xff         /**< Maximum number of UINT8 */
+typedef signed   char  int8_t;      /**<  8bit integer type */
+typedef unsigned char  uint8_t;     /**<  8bit unsigned integer type */
 
 /* C28X automatically disable interrupt in interrupt service routine.
  * We need to enable manually to allow for interrupt nesting by calling