--- /dev/null
+/**
+ @page GPIO_IOToggle GPIO IO Toggle example
+
+ @verbatim
+ ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
+ * @file IO_Toggle/readme.txt
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 19-September-2011
+ * @brief Description of the GPIO IO Toggle example.
+ ******************************************************************************
+ * 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.
+ ******************************************************************************
+ @endverbatim
+
+@par Example Description
+
+This example describes how to toggle the GPIO pins connected on AHB bus.
+
+PD12, PD13, PD14 and PD15 (configured in output pushpull mode) toggles in a forever loop.
+ - Set PD12, PD13, PD14 and PD15 by setting corresponding bits in BSRRL register
+ - Reset PD12, PD13, PD14 and PD15 by setting corresponding bits in BSRRH register
+
+In this example, HCLK is configured at 168 MHz.
+
+@par Directory contents
+
+ - IO_Toggle/stm32f4xx_conf.h Library Configuration file
+ - IO_Toggle/stm32f4xx_it.c Interrupt handlers
+ - IO_Toggle/stm32f4xx_it.h Interrupt handlers header file
+ - IO_Toggle/main.c Main program
+ - IO_Toggle/system_stm32f4xx.c STM32F4xx system source file
+
+@par Hardware and Software environment
+
+ - This example runs on STM32F4xx Devices Revision A.
+
+ - This example has been tested with STM32F4-Discovery (MB997) RevA and can be
+ easily tailored to any other development board
+
+ - STM32F4-Discovery
+ - LED4, LED3, LED5 and LED6 are connected respectively to PD.12, PD.13, PD.14 and PD.15.
+
+
+@par How to use it ?
+
+In order to make the program work, you must do the following :
+
+ + EWARM
+ - Open the IO_Toggle.eww workspace
+ - Rebuild all files: Project->Rebuild all
+ - Load project image: Project->Debug
+ - Run program: Debug->Go(F5)
+
+ + MDK-ARM
+ - Open the IO_Toggle.uvproj project
+ - Rebuild all files: Project->Rebuild all target files
+ - Load project image: Debug->Start/Stop Debug Session
+ - Run program: Debug->Run (F5)
+
+ + TASKING
+ - Open TASKING toolchain.
+ - Click on File->Import, select General->'Existing Projects into Workspace'
+ and then click "Next".
+ - Browse to TASKING workspace directory and select the project "IO_Toggle"
+ - Rebuild all project files: Select the project in the "Project explorer"
+ window then click on Project->build project menu.
+ - Run program: Select the project in the "Project explorer" window then click
+ Run->Debug (F11)
+
+ + TrueSTUDIO
+ - Open the TrueSTUDIO toolchain.
+ - Click on File->Switch Workspace->Other and browse to TrueSTUDIO workspace
+ directory.
+ - Click on File->Import, select General->'Existing Projects into Workspace'
+ and then click "Next".
+ - Browse to the TrueSTUDIO workspace directory and select the project "IO_Toggle"
+ - Rebuild all project files: Select the project in the "Project explorer"
+ window then click on Project->build project menu.
+ - Run program: Select the project in the "Project explorer" window then click
+ Run->Debug (F11)
+
+
+
+ * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3>
+ */