/**
  @page TIM_7PWM_Output TIM 7 PWM Output example
  
  @verbatim
  ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
  * @file    TIM/7PWM_Output/readme.txt 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Description of the TIM 7 PWM Output 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 TIM1 peripheral to generate 7 PWM signals 
with 4 different duty cycles (50%, 37.5%, 25% and 12.5%).

TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock
SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density
and Connectivity line devices. For Low-Density Value line, Medium-Density and
High-density Value line devices, SystemCoreClock is set to 24 MHz.

The objective is to generate 7 PWM signal at 17.57 KHz:
  - TIM1_Period = (SystemCoreClock / 17570) - 1
The channel 1 and channel 1N duty cycle is set to 50%
The channel 2 and channel 2N duty cycle is set to 37.5%
The channel 3 and channel 3N duty cycle is set to 25%
The channel 4 duty cycle is set to 12.5%
The Timer pulse is calculated as follows:
  - ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100

The TIM1 waveform can be displayed using an oscilloscope.

@par Directory contents 

  - TIM/7PWM_Output/stm32f10x_conf.h    Library Configuration file
  - TIM/7PWM_Output/stm32f10x_it.c      Interrupt handlers
  - TIM/7PWM_Output/stm32f10x_it.h      Interrupt handlers header file
  - TIM/7PWM_Output/main.c              Main program
  - TIM/7PWM_Output/system_stm32f10x.c  STM32F10x system source file
  
@par Hardware and Software environment 

  - This example runs on STM32F10x Connectivity line, High-Density, High-Density 
    Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density 
    and Low-Density Value line Devices.
  
  - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density
    Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), 
    STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) 
    evaluation boards and can be easily tailored to any other supported device 
    and development board.
    

  - STM3210C-EVAL Set-up 
    - Connect the TIM1 pins(TIM1 full remapped pins) to an oscilloscope to monitor the different waveforms:
      - TIM1_CH1  pin (PE.08)  
      - TIM1_CH1N pin (PE.09)  
      - TIM1_CH2  pin (PE.10)  
      - TIM1_CH2N pin (PE.11)  
      - TIM1_CH3  pin (PE.12)  
      - TIM1_CH3N pin (PE.13)
      - TIM1_CH4  pin (PE.14)      

  - STM3210E-EVAL, STM3210B-EVAL, STM32100B-EVAL and STM32100E-EVAL Set-up 
    - Connect the TIM1 pins to an oscilloscope to monitor the different waveforms:
      - TIM1_CH1  pin (PA.08)  
      - TIM1_CH1N pin (PB.13)  
      - TIM1_CH2  pin (PA.09)  
      - TIM1_CH2N pin (PB.14)  
      - TIM1_CH3  pin (PA.10)  
      - TIM1_CH3N pin (PB.15)
      - TIM1_CH4  pin (PA.11)    
  
@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>&copy; COPYRIGHT 2011 STMicroelectronics</center></h3>
 */
