diff options
Diffstat (limited to 'src/stm32lib/examples/CortexM3/BitBand/main.c')
| -rwxr-xr-x | src/stm32lib/examples/CortexM3/BitBand/main.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/src/stm32lib/examples/CortexM3/BitBand/main.c b/src/stm32lib/examples/CortexM3/BitBand/main.c deleted file mode 100755 index 36188fc..0000000 --- a/src/stm32lib/examples/CortexM3/BitBand/main.c +++ /dev/null @@ -1,191 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : main.c
-* Author : MCD Application Team
-* Version : V2.0.1
-* Date : 06/13/2008
-* Description : Main program body.
-********************************************************************************
-* 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.
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x_lib.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define RAM_BASE 0x20000000
-#define RAM_BB_BASE 0x22000000
-
-/* Private macro -------------------------------------------------------------*/
-#define Var_ResetBit_BB(VarAddr, BitNumber) \
- (*(vu32 *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)) = 0)
-
-#define Var_SetBit_BB(VarAddr, BitNumber) \
- (*(vu32 *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)) = 1)
-
-#define Var_GetBit_BB(VarAddr, BitNumber) \
- (*(vu32 *) (RAM_BB_BASE | ((VarAddr - RAM_BASE) << 5) | ((BitNumber) << 2)))
-
-/* Private variables ---------------------------------------------------------*/
-ErrorStatus HSEStartUpStatus;
-vu32 Var, VarAddr = 0, VarBitValue = 0;
-
-/* Private function prototypes -----------------------------------------------*/
-void RCC_Configuration(void);
-void NVIC_Configuration(void);
-
-/* Private functions ---------------------------------------------------------*/
-/*******************************************************************************
-* Function Name : main
-* Description : Main program.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-int main(void)
-{
-#ifdef DEBUG
- debug();
-#endif
-
- Var = 0x00005AA5;
-
- /* Clock configuration */
- RCC_Configuration();
-
- /* NVIC configuration */
- NVIC_Configuration();
-
-/* 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 = (u32)&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)
- {
- }
-}
-
-/*******************************************************************************
-* Function Name : RCC_Configuration
-* Description : Configures the different system clocks.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void RCC_Configuration(void)
-{
- /* RCC system reset(for debug purpose) */
- RCC_DeInit();
-
- /* Enable HSE */
- RCC_HSEConfig(RCC_HSE_ON);
-
- /* Wait till HSE is ready */
- HSEStartUpStatus = RCC_WaitForHSEStartUp();
-
- if(HSEStartUpStatus == SUCCESS)
- {
- /* Enable Prefetch Buffer */
- FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
-
- /* Flash 0 wait state */
- FLASH_SetLatency(FLASH_Latency_0);
-
- /* HCLK = SYSCLK */
- RCC_HCLKConfig(RCC_SYSCLK_Div1);
-
- /* PCLK2 = HCLK */
- RCC_PCLK2Config(RCC_HCLK_Div1);
-
- /* PCLK1 = HCLK */
- RCC_PCLK1Config(RCC_HCLK_Div1);
-
- /* Select HSE as system clock source */
- RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);
-
- /* Wait till HSE is used as system clock source */
- while(RCC_GetSYSCLKSource() != 0x04)
- {
- }
- }
-}
-
-/*******************************************************************************
-* Function Name : NVIC_Configuration
-* Description : Configures NVIC and Vector Table base location.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void NVIC_Configuration(void)
-{
-#ifdef VECT_TAB_RAM
- /* Set the Vector Table base location at 0x20000000 */
- NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
-#else /* VECT_TAB_FLASH */
- /* Set the Vector Table base location at 0x08000000 */
- NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
-#endif
-}
-
-#ifdef DEBUG
-/*******************************************************************************
-* Function Name : assert_failed
-* Description : Reports the name of the source file and the source line number
-* where the assert_param error has occurred.
-* Input : - file: pointer to the source file name
-* - line: assert_param error line source number
-* Output : None
-* Return : None
-*******************************************************************************/
-void assert_failed(u8* file, u32 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 2008 STMicroelectronics *****END OF FILE****/
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