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authorTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:24:18 +0100
committerTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:29:25 +0100
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-/**
- @page TIM_Parallel_Synchro TIM Parallel Synchro example
-
- @verbatim
- ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
- * @file TIM/Parallel_Synchro/readme.txt
- * @author MCD Application Team
- * @version V3.5.0
- * @date 08-April-2011
- * @brief Description of the TIM Parallel Synchro 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 synchronize TIM peripherals in parallel mode.
-In this example three timers are used:
-
-Timers synchronisation in parallel mode:
-
-1/TIM2 is configured as Master Timer:
- - PWM Mode is used
- - The TIM2 Update event is used as Trigger Output
-
-2/TIM3 and TIM4 are slaves for TIM2,
- - PWM Mode is used
- - The ITR1(TIM2) is used as input trigger for both slaves
- - Gated mode is used, so starts and stops of slaves counters are controlled
- by the Master trigger output signal(update event).
-
-o For Low-density, Medium-density, High-density and Connectivity line devices:
- The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz.
- The Master Timer TIM2 is running at TIM2 frequency:
- TIM2 frequency = TIM2 counter clock/ (TIM2 period + 1) = 281.250 KHz
- and the duty cycle is equal to TIM2_CCR1/(TIM2_ARR + 1) = 25%.
-
- The TIM3 is running at:
- (TIM2 frequency)/ (TIM3 period + 1) = 28.1250 KHz and a duty cycle equal to
- TIM3_CCR1/(TIM3_ARR + 1) = 30%
-
- The TIM4 is running at:
- (TIM2 frequency)/ (TIM4 period + 1) = 56.250 KHz and a duty cycle equal to
- TIM4_CCR1/(TIM4_ARR + 1) = 60%
-
-o For Low-Density Value line, Medium-Density Value line and High-Density Value line devices:
- The TIMxCLK is fixed to 24 MHz, the TIM2 counter clock is 24 MHz.
- TIM2 frequency = 93.75 KHz
- TIM3 frequency = 9.375 KHz
- TIM4 frequency = 18.75 KHz
-
-@par Directory contents
-
- - TIM/Parallel_Synchro/stm32f10x_conf.h Library Configuration file
- - TIM/Parallel_Synchro/stm32f10x_it.c Interrupt handlers
- - TIM/Parallel_Synchro/stm32f10x_it.h Interrupt handlers header file
- - TIM/Parallel_Synchro/main.c Main program
- - TIM/Parallel_Synchro/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 pins to an oscilloscope to monitor the different waveforms:
- - TIM2 CH1 (PA.00)
- - TIM3 CH1 (PC.06) Remapped pin
- - TIM4 CH1 (PB.06)
-
- - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up
- - Connect the pins to an oscilloscope to monitor the different waveforms:
- - TIM2 CH1 (PA.00)
- - TIM3 CH1 (PA.06)
- - TIM4 CH1 (PB.06)
-
-@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>
- */