diff options
Diffstat (limited to 'src/stm32lib/examples/CortexM3/Mode_Privilege/main.c')
| -rwxr-xr-x | src/stm32lib/examples/CortexM3/Mode_Privilege/main.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/src/stm32lib/examples/CortexM3/Mode_Privilege/main.c b/src/stm32lib/examples/CortexM3/Mode_Privilege/main.c deleted file mode 100755 index 6946220..0000000 --- a/src/stm32lib/examples/CortexM3/Mode_Privilege/main.c +++ /dev/null @@ -1,217 +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 SP_PROCESS_SIZE 0x200 /* Process stack size */
-#define SP_PROCESS 0x02 /* Process stack */
-#define SP_MAIN 0x00 /* Main stack */
-#define THREAD_MODE_PRIVILEGED 0x00 /* Thread mode has privileged access */
-#define THREAD_MODE_UNPRIVILEGED 0x01 /* Thread mode has unprivileged access */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-ErrorStatus HSEStartUpStatus;
-vu8 PSPMemAlloc[SP_PROCESS_SIZE];
-vu32 Index = 0, PSPValue = 0, CurrentStack = 0, ThreadMode = 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
-
- /* Clock configuration */
- RCC_Configuration();
-
- /* NVIC configuration */
- NVIC_Configuration();
-
-
-/* Switch Thread mode Stack from Main to Process -----------------------------*/
- /* Initialize memory reserved for Process Stack */
- for(Index = 0; Index < SP_PROCESS_SIZE; Index++)
- {
- PSPMemAlloc[Index] = 0x00;
- }
-
- /* Set Process stack value */
- __MSR_PSP((u32)PSPMemAlloc + SP_PROCESS_SIZE);
-
- /* Select Process Stack as Thread mode Stack */
- __MSR_CONTROL(SP_PROCESS);
-
- /* Get the Thread mode stack used */
- if((__MRS_CONTROL() & 0x02) == SP_MAIN)
- {
- /* Main stack is used as the current stack */
- CurrentStack = SP_MAIN;
- }
- else
- {
- /* Process stack is used as the current stack */
- CurrentStack = SP_PROCESS;
-
- /* Get process stack pointer value */
- PSPValue = __MRS_PSP();
- }
-
-/* Switch Thread mode from privileged to unprivileged ------------------------*/
- /* Thread mode has unprivileged access */
- __MSR_CONTROL(THREAD_MODE_UNPRIVILEGED | SP_PROCESS);
- /* Unprivileged access mainly affect ability to:
- - Use or not use certain instructions such as MSR fields
- - Access System Control Space (SCS) registers such as NVIC and SysTick */
-
- /* Check Thread mode privilege status */
- if((__MRS_CONTROL() & 0x01) == THREAD_MODE_PRIVILEGED)
- {
- /* Thread mode has privileged access */
- ThreadMode = THREAD_MODE_PRIVILEGED;
- }
- else
- {
- /* Thread mode has unprivileged access*/
- ThreadMode = THREAD_MODE_UNPRIVILEGED;
- }
-
-/* Switch back Thread mode from unprivileged to privileged -------------------*/
- /* Try to switch back Thread mode to privileged (Not possible, this can be
- done only in Handler mode) */
- __MSR_CONTROL(THREAD_MODE_PRIVILEGED | SP_PROCESS);
-
- /* Generate a system call exception, and in the ISR switch back Thread mode
- to privileged */
- __SVC();
-
- /* Check Thread mode privilege status */
- if((__MRS_CONTROL() & 0x01) == THREAD_MODE_PRIVILEGED)
- {
- /* Thread mode has privileged access */
- ThreadMode = THREAD_MODE_PRIVILEGED;
- }
- else
- {
- /* Thread mode has unprivileged access*/
- ThreadMode = THREAD_MODE_UNPRIVILEGED;
- }
-
- 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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