--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CortexM3/BitBand/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,144 @@
+/**
+  ******************************************************************************
+  * @file    CortexM3/BitBand/main.c 
+  * @author  MCD Application Team
+  * @version V3.5.0
+  * @date    08-April-2011
+  * @brief   Main program body.
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup CortexM3_BitBand
+  * @{
+  */ 
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define RAM_BASE       0x20000000
+#define RAM_BB_BASE    0x22000000
+ 
+/* Private macro -------------------------------------------------------------*/
+#define  Var_ResetBit_BB(VarAddr, BitNumber)    \
+          (*(__IO uint32_t *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)) = 0)
+   
+#define Var_SetBit_BB(VarAddr, BitNumber)       \
+          (*(__IO uint32_t *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)) = 1)
+
+#define Var_GetBit_BB(VarAddr, BitNumber)       \
+          (*(__IO uint32_t *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)))
+   
+/* Private variables ---------------------------------------------------------*/
+
+__IO uint32_t Var, VarAddr = 0, VarBitValue = 0;
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief   Main program.
+  * @param  None
+  * @retval None
+  */
+int main(void)
+{
+  /*!< At this stage the microcontroller clock setting is already configured, 
+       this is done through SystemInit() function which is called from startup
+       file (startup_stm32f10x_xx.s) before to branch to application main.
+       To reconfigure the default setting of SystemInit() function, refer to
+       system_stm32f10x.c file
+     */     
+         
+  Var = 0x00005AA5;
+
+/* A mapping formula shows how to reference each word in the alias region to a 
+   corresponding bit in the bit-band region. The mapping formula is:
+   bit_word_addr = bit_band_base + (byte_offset x 32) + (bit_number + 4)
+
+where:
+   - bit_word_addr: is the address of the word in the alias memory region that 
+                    maps to the targeted bit.
+   - bit_band_base is the starting address of the alias region
+   - byte_offset is the number of the byte in the bit-band region that contains 
+     the targeted bit
+   - bit_number is the bit position (0-7) of the targeted bit */
+
+/* Get the variable address --------------------------------------------------*/ 
+  VarAddr = (uint32_t)&Var; 
+
+/* Modify variable bit using bit-band access ---------------------------------*/
+  /* Modify Var variable bit 0 -----------------------------------------------*/
+  Var_ResetBit_BB(VarAddr, 0);  /* Var = 0x00005AA4 */
+  Var_SetBit_BB(VarAddr, 0);    /* Var = 0x00005AA5 */
+  
+  /* Modify Var variable bit 11 ----------------------------------------------*/
+  Var_ResetBit_BB(VarAddr, 11);             /* Var = 0x000052A5 */
+  /* Get Var variable bit 11 value */
+  VarBitValue = Var_GetBit_BB(VarAddr, 11); /* VarBitValue = 0x00000000 */
+  
+  Var_SetBit_BB(VarAddr, 11);               /* Var = 0x00005AA5 */
+  /* Get Var variable bit 11 value */
+  VarBitValue = Var_GetBit_BB(VarAddr, 11);    /* VarBitValue = 0x00000001 */
+  
+  /* Modify Var variable bit 31 ----------------------------------------------*/
+  Var_SetBit_BB(VarAddr, 31);               /* Var = 0x80005AA5 */
+  /* Get Var variable bit 31 value */
+  VarBitValue = Var_GetBit_BB(VarAddr, 31); /* VarBitValue = 0x00000001 */
+    
+  Var_ResetBit_BB(VarAddr, 31);             /* Var = 0x00005AA5 */
+  /* Get Var variable bit 31 value */
+  VarBitValue = Var_GetBit_BB(VarAddr, 31); /* VarBitValue = 0x00000000 */
+        
+  while (1)
+  {
+  }
+}
+
+#ifdef  USE_FULL_ASSERT
+
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(uint8_t* file, uint32_t line)
+{ 
+  /* User can add his own implementation to report the file name and line number,
+     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+
+  /* Infinite loop */
+  while (1)
+  {
+  }
+}
+
+#endif
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/