Mercurial > public > ostc4
view Small_CPU/Inc/system_stm32f4xx.h @ 623:ba83a8ef9bad
Improvment frame Handling:
In previous version, especially during fast menu operations, from time to time a flicker (in case of cyclic updated views) or corrupted menus appeared. Possible root cause is a interferance in the chain: refresh display (~100ms) => release frame (in parallel to) provide frame (~45ms) => clear frame (~45ms). to improve the behaviour the clear frame loop is not iterated until all bufferes are cleared (before one buffer every~45ms). getFrame() does now iterate through all frame buffers instead reusing the first possible (to avoid ghoust views and to provide more time to housekeeping function for cleanup)
author | Ideenmodellierer |
---|---|
date | Sun, 07 Feb 2021 22:04:43 +0100 |
parents | 5f11787b4f42 |
children |
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/** ****************************************************************************** * @file system_stm32f4xx.h * @author MCD Application Team * @version V1.0.0 * @date 30-September-2011 * @brief CMSIS Cortex-M4 Device System Source File for STM32F4xx devices. ****************************************************************************** * @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> ****************************************************************************** */ /** @addtogroup CMSIS * @{ */ /** @addtogroup stm32f4xx_system * @{ */ /** * @brief Define to prevent recursive inclusion */ #ifndef SYSTEM_STM32F4XX_H #define SYSTEM_STM32F4XX_H #ifdef __cplusplus extern "C" { #endif /** @addtogroup STM32F4xx_System_Includes * @{ */ /** * @} */ /** @addtogroup STM32F4xx_System_Exported_types * @{ */ extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ /** * @} */ /** @addtogroup STM32F4xx_System_Exported_Constants * @{ */ /** * @} */ /** @addtogroup STM32F4xx_System_Exported_Macros * @{ */ /** * @} */ /** @addtogroup STM32F4xx_System_Exported_Functions * @{ */ extern void SystemInit(void); extern void SystemCoreClockUpdate(void); /** * @} */ #ifdef __cplusplus } #endif #endif /* SYSTEM_STM32F4XX_H */ /** * @} */ /** * @} */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/