TIM_OCToggle

  ******************** (C) COPYRIGHT 2010 STMicroelectronics *******************
  * @file    TIM/OCToggle/readme.txt 
  * @author  MCD Application Team
  * @version V3.4.0
  * @date    10/15/2010
  * @brief   Description of the TIM OCToggle 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
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  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  ******************************************************************************
   
Example Description

This example shows how to configure the TIM3 peripheral to generate four different signals with four different frequencies.

The TIM3CLK frequency is set to SystemCoreClock / 2 (Hz), and we want to get TIM3 counter clock at 12 MHz so the Prescaler is computed as following:

The TIM3 CCR1 register value is equal to 32768: CC1 update rate = TIM3 counter clock / CCR1_Val = 366.2 Hz, so the TIM3 Channel 1 generates a periodic signal with a frequency equal to 183.1 Hz.

The TIM3 CCR2 register is equal to 16384: CC2 update rate = TIM3 counter clock / CCR2_Val = 732.4 Hz so the TIM3 channel 2 generates a periodic signal with a frequency equal to 366.3 Hz.

The TIM3 CCR3 register is equal to 8192: CC3 update rate = TIM3 counter clock / CCR3_Val = 1464.8 Hz so the TIM3 channel 3 generates a periodic signal with a frequency equal to 732.4 Hz.

The TIM3 CCR4 register is equal to 4096: CC4 update rate = TIM3 counter clock / CCR4_Val = 2929.6 Hz so the TIM3 channel 4 generates a periodic signal with a frequency equal to 1464.8 Hz.

Directory contents
Hardware and Software environment
How to use it ?

In order to make the program work, you must do the following:

Tip: You can tailor the provided project template to run this example, for more details please refer to "stm32f10x_stdperiph_lib_um.chm" user manual; select "Peripheral Examples" then follow the instructions provided in "How to proceed" section.

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.

© COPYRIGHT 2010 STMicroelectronics

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