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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt new file mode 100644 index 0000000..8503879 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt @@ -0,0 +1,87 @@ +/** + @page TIM9_OCToggle TIM9 OC Toggle example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM9_OCToggle/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM9 OC 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 shows how to configure the TIM9 peripheral to generate two different +signals with two different frequencies. + +The TIM9CLK frequency is set to SystemCoreClock (72 MHz), and we want to get TIM9 +counter clock at 24 MHz so the Prescaler is computed as following: + - Prescaler = (TIM9CLK / TIM9 counter clock) - 1 + +The TIM9 CCR1 register value is equal to 32768: +CC1 update rate = TIM9 counter clock / CCR1Val = 732.4 Hz, +so the TIM9 Channel 1 generates a periodic signal with a frequency equal to 366.2 Hz. + +The TIM9 CCR2 register is equal to 16384: +CC2 update rate = TIM9 counter clock / CCR2Val = 1464.8 +so the TIM9 channel 2 generates a periodic signal with a frequency equal to 732.4 Hz. + + +@par Directory contents + + - TIM/TIM9_OCToggle/stm32f10x_conf.h Library Configuration file + - TIM/TIM9_OCToggle/stm32f10x_it.c Interrupt handlers + - TIM/TIM9_OCToggle/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM9_OCToggle/main.c Main program + - TIM/TIM9_OCToggle/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs only on STM32F10x XL-Density Devices. + + - This example has been tested with STMicroelectronics STM3210E-EVAL (XL-Density) + evaluation board and can be easily tailored to any development board. + + - STM3210E-EVAL Set-up + - Connect the TIM9 pins to an oscilloscope to monitor the different waveforms: + - PA.02 (TIM9_CH1) + - PA.03 (TIM9_CH2) + + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ |