From b0f0d2e9ca18d8604225bed3c984e4cf1b4c4b3c Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Wed, 10 Feb 2016 20:31:09 +0100 Subject: Initial import --- .../src/stm32f10x_iwdg.c | 189 +++++++++++++++++++++ 1 file changed, 189 insertions(+) create mode 100644 Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_iwdg.c (limited to 'Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_iwdg.c') diff --git a/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_iwdg.c b/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_iwdg.c new file mode 100644 index 0000000..58ab061 --- /dev/null +++ b/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_iwdg.c @@ -0,0 +1,189 @@ +/** + ****************************************************************************** + * @file stm32f10x_iwdg.c + * @author MCD Application Team + * @version V3.3.0 + * @date 04/16/2010 + * @brief This file provides all the IWDG firmware functions. + ****************************************************************************** + * @copy + * + * 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. + * + *

© COPYRIGHT 2010 STMicroelectronics

+ */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_iwdg.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @defgroup IWDG + * @brief IWDG driver modules + * @{ + */ + +/** @defgroup IWDG_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @defgroup IWDG_Private_Defines + * @{ + */ + +/* ---------------------- IWDG registers bit mask ----------------------------*/ + +/* KR register bit mask */ +#define KR_KEY_Reload ((uint16_t)0xAAAA) +#define KR_KEY_Enable ((uint16_t)0xCCCC) + +/** + * @} + */ + +/** @defgroup IWDG_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup IWDG_Private_Variables + * @{ + */ + +/** + * @} + */ + +/** @defgroup IWDG_Private_FunctionPrototypes + * @{ + */ + +/** + * @} + */ + +/** @defgroup IWDG_Private_Functions + * @{ + */ + +/** + * @brief Enables or disables write access to IWDG_PR and IWDG_RLR registers. + * @param IWDG_WriteAccess: new state of write access to IWDG_PR and IWDG_RLR registers. + * This parameter can be one of the following values: + * @arg IWDG_WriteAccess_Enable: Enable write access to IWDG_PR and IWDG_RLR registers + * @arg IWDG_WriteAccess_Disable: Disable write access to IWDG_PR and IWDG_RLR registers + * @retval None + */ +void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess) +{ + /* Check the parameters */ + assert_param(IS_IWDG_WRITE_ACCESS(IWDG_WriteAccess)); + IWDG->KR = IWDG_WriteAccess; +} + +/** + * @brief Sets IWDG Prescaler value. + * @param IWDG_Prescaler: specifies the IWDG Prescaler value. + * This parameter can be one of the following values: + * @arg IWDG_Prescaler_4: IWDG prescaler set to 4 + * @arg IWDG_Prescaler_8: IWDG prescaler set to 8 + * @arg IWDG_Prescaler_16: IWDG prescaler set to 16 + * @arg IWDG_Prescaler_32: IWDG prescaler set to 32 + * @arg IWDG_Prescaler_64: IWDG prescaler set to 64 + * @arg IWDG_Prescaler_128: IWDG prescaler set to 128 + * @arg IWDG_Prescaler_256: IWDG prescaler set to 256 + * @retval None + */ +void IWDG_SetPrescaler(uint8_t IWDG_Prescaler) +{ + /* Check the parameters */ + assert_param(IS_IWDG_PRESCALER(IWDG_Prescaler)); + IWDG->PR = IWDG_Prescaler; +} + +/** + * @brief Sets IWDG Reload value. + * @param Reload: specifies the IWDG Reload value. + * This parameter must be a number between 0 and 0x0FFF. + * @retval None + */ +void IWDG_SetReload(uint16_t Reload) +{ + /* Check the parameters */ + assert_param(IS_IWDG_RELOAD(Reload)); + IWDG->RLR = Reload; +} + +/** + * @brief Reloads IWDG counter with value defined in the reload register + * (write access to IWDG_PR and IWDG_RLR registers disabled). + * @param None + * @retval None + */ +void IWDG_ReloadCounter(void) +{ + IWDG->KR = KR_KEY_Reload; +} + +/** + * @brief Enables IWDG (write access to IWDG_PR and IWDG_RLR registers disabled). + * @param None + * @retval None + */ +void IWDG_Enable(void) +{ + IWDG->KR = KR_KEY_Enable; +} + +/** + * @brief Checks whether the specified IWDG flag is set or not. + * @param IWDG_FLAG: specifies the flag to check. + * This parameter can be one of the following values: + * @arg IWDG_FLAG_PVU: Prescaler Value Update on going + * @arg IWDG_FLAG_RVU: Reload Value Update on going + * @retval The new state of IWDG_FLAG (SET or RESET). + */ +FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG) +{ + FlagStatus bitstatus = RESET; + /* Check the parameters */ + assert_param(IS_IWDG_FLAG(IWDG_FLAG)); + if ((IWDG->SR & IWDG_FLAG) != (uint32_t)RESET) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + /* Return the flag status */ + return bitstatus; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3