1 files changed, 142 insertions, 0 deletions
diff --git a/KSDK_1.2.0/platform/devices/startup.c b/KSDK_1.2.0/platform/devices/startup.c
new file mode 100755
index 0000000..b89e7fc
--- /dev/null
+++ b/KSDK_1.2.0/platform/devices/startup.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "startup.h"
+#include "fsl_device_registers.h"
+
+#if (defined(__ICCARM__))
+    #pragma section = ".data"
+    #pragma section = ".data_init"
+    #pragma section = ".bss"
+#endif
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : init_data_bss
+ * Description   : Make necessary initializations for RAM.
+ * - Copy initialized data from ROM to RAM.
+ * - Clear the zero-initialized data section.
+ * - Copy the vector table from ROM to RAM. This could be an option.  
+ *
+ * Tool Chians:
+ *   __GNUC__   : GCC
+ *   __CC_ARM   : KEIL
+ *   __ICCARM__ : IAR
+ *
+ *END**************************************************************************/
+void init_data_bss(void)
+{
+    uint32_t n; 
+    
+    /* Addresses for VECTOR_TABLE and VECTOR_RAM come from the linker file */
+#if defined(__CC_ARM)
+    extern uint32_t Image$$VECTOR_ROM$$Base[];
+    extern uint32_t Image$$VECTOR_RAM$$Base[];
+    extern uint32_t Image$$RW_m_data$$Base[];
+
+    #define __VECTOR_TABLE Image$$VECTOR_ROM$$Base  
+    #define __VECTOR_RAM Image$$VECTOR_RAM$$Base  
+    #define __RAM_VECTOR_TABLE_SIZE (((uint32_t)Image$$RW_m_data$$Base - (uint32_t)Image$$VECTOR_RAM$$Base))
+#elif defined(__ICCARM__)
+    extern uint32_t __RAM_VECTOR_TABLE_SIZE[];
+    extern uint32_t __VECTOR_TABLE[];  
+    extern uint32_t __VECTOR_RAM[];  
+#elif defined(__GNUC__)
+    extern uint32_t __VECTOR_TABLE[];
+    extern uint32_t __VECTOR_RAM[];
+    extern uint32_t __RAM_VECTOR_TABLE_SIZE_BYTES[];
+    uint32_t __RAM_VECTOR_TABLE_SIZE = (uint32_t)(__RAM_VECTOR_TABLE_SIZE_BYTES);
+#endif
+
+    if (__VECTOR_RAM != __VECTOR_TABLE)
+    {   
+        /* Copy the vector table from ROM to RAM */
+        for (n = 0; n < ((uint32_t)__RAM_VECTOR_TABLE_SIZE)/sizeof(uint32_t); n++)
+        {
+            __VECTOR_RAM[n] = __VECTOR_TABLE[n];
+        }
+        /* Point the VTOR to the position of vector table */
+        SCB->VTOR = (uint32_t)__VECTOR_RAM;
+    }
+    else
+    {
+        /* Point the VTOR to the position of vector table */
+        SCB->VTOR = (uint32_t)__VECTOR_TABLE;
+    }
+
+#if !defined(__CC_ARM) && !defined(__ICCARM__)
+    
+    /* Declare pointers for various data sections. These pointers
+     * are initialized using values pulled in from the linker file */
+    uint8_t * data_ram, * data_rom, * data_rom_end;
+    uint8_t * bss_start, * bss_end;
+
+    /* Get the addresses for the .data section (initialized data section) */
+#if defined(__GNUC__)
+    extern uint32_t __DATA_ROM[];
+    extern uint32_t __DATA_RAM[];
+    extern char __DATA_END[];
+    data_ram = (uint8_t *)__DATA_RAM;
+    data_rom = (uint8_t *)__DATA_ROM;
+    data_rom_end  = (uint8_t *)__DATA_END;
+    n = data_rom_end - data_rom;
+#endif
+
+    /* Copy initialized data from ROM to RAM */
+    while (n--)
+    {
+        *data_ram++ = *data_rom++;
+    }   
+    
+    /* Get the addresses for the .bss section (zero-initialized data) */
+#if defined(__GNUC__)
+    extern char __START_BSS[];
+    extern char __END_BSS[];
+    bss_start = (uint8_t *)__START_BSS;
+    bss_end = (uint8_t *)__END_BSS;
+#endif
+		
+    /* Clear the zero-initialized data section */
+    n = bss_end - bss_start;
+    while(n--)
+    {
+        *bss_start++ = 0;
+    }
+#endif /* !__CC_ARM && !__ICCARM__*/
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+