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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/GPIO/IOToggle/main.c')
| -rw-r--r-- | tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/GPIO/IOToggle/main.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/GPIO/IOToggle/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/GPIO/IOToggle/main.c new file mode 100644 index 0000000..449bd2f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/GPIO/IOToggle/main.c @@ -0,0 +1,155 @@ +/** + ****************************************************************************** + * @file GPIO/IOToggle/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>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" +#include "stm32_eval.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup GPIO_IOToggle + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +GPIO_InitTypeDef GPIO_InitStructure; + +/* 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 + */ + + /* GPIOD Periph clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE); + + /* Configure PD0 and PD2 in output pushpull mode */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_2; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; + GPIO_Init(GPIOD, &GPIO_InitStructure); + + /* To achieve GPIO toggling maximum frequency, the following sequence is mandatory. + You can monitor PD0 or PD2 on the scope to measure the output signal. + If you need to fine tune this frequency, you can add more GPIO set/reset + cycles to minimize more the infinite loop timing. + This code needs to be compiled with high speed optimization option. */ + while (1) + { + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + + /* Set PD0 and PD2 */ + GPIOD->BSRR = 0x00000005; + /* Reset PD0 and PD2 */ + GPIOD->BRR = 0x00000005; + } +} + +#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****/ |