文件列表:

7PWM-Test\7PWM.axf (304216, 2009-07-23)
7PWM-Test\7PWM.htm (57892, 2009-07-23)
7PWM-Test\7PWM.lnp (366, 2009-07-23)
7PWM-Test\7PWM.map (71506, 2009-07-23)
7PWM-Test\7PWM.Opt (2863, 2009-07-23)
7PWM-Test\7PWM.plg (225, 2009-07-23)
7PWM-Test\7PWM.sct (479, 2009-07-23)
7PWM-Test\7PWM.tra (1303, 2009-07-23)
7PWM-Test\7PWM.Uv2 (3214, 2009-07-23)
7PWM-Test\7PWM_Opt.Bak (2864, 2009-07-23)
7PWM-Test\7PWM_Target 1.dep (5529, 2009-07-23)
7PWM-Test\7PWM_Uv2.Bak (0, 2009-07-23)
7PWM-Test\core_cm3.crf (3549, 2009-07-23)
7PWM-Test\core_cm3.d (95, 2009-07-23)
7PWM-Test\core_cm3.o (10020, 2009-07-23)
7PWM-Test\ExtDll.iex (19, 2009-07-23)
7PWM-Test\JLinkArm_Target 1.ini (205, 2009-07-23)
7PWM-Test\main.c (6661, 2009-07-23)
7PWM-Test\main.crf (244672, 2009-07-23)
7PWM-Test\main.d (504, 2009-07-23)
7PWM-Test\main.o (256936, 2009-07-23)
7PWM-Test\main.__i (231, 2009-07-23)
7PWM-Test\startup_stm32f10x_hd.lst (60982, 2009-07-23)
7PWM-Test\startup_stm32f10x_hd.o (6400, 2009-07-23)
7PWM-Test\stm32f10x_conf.h (3214, 2009-06-23)
7PWM-Test\stm32f10x_gpio.crf (248052, 2009-07-23)
7PWM-Test\stm32f10x_gpio.d (738, 2009-07-23)
7PWM-Test\stm32f10x_gpio.o (262772, 2009-07-23)
7PWM-Test\stm32f10x_it.c (4345, 2009-06-23)
7PWM-Test\stm32f10x_it.crf (244029, 2009-07-23)
7PWM-Test\stm32f10x_it.d (624, 2009-07-23)
7PWM-Test\stm32f10x_it.h (1899, 2009-06-23)
7PWM-Test\stm32f10x_it.o (256820, 2009-07-23)
7PWM-Test\stm32f10x_rcc.crf (251727, 2009-07-23)
7PWM-Test\stm32f10x_rcc.d (725, 2009-07-23)
7PWM-Test\stm32f10x_rcc.o (267368, 2009-07-23)
7PWM-Test\stm32f10x_tim.crf (265310, 2009-07-23)
7PWM-Test\stm32f10x_tim.d (725, 2009-07-23)
7PWM-Test\stm32f10x_tim.o (292224, 2009-07-23)
... ...

/** @page TIM_7PWM_Output TIM_7PWM_Output @verbatim ******************** (C) COPYRIGHT 2009 STMicroelectronics ******************* * @file TIM/7PWM_Output/readme.txt * @author MCD Application Team * @version V3.1.0 * @date 06/19/2009 * @brief Description of the TIM 7PWM_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. TIM1CLK is fixed to 72 MHz, the TIM1 Prescaler is equal to 0 so the TIM1 counter clock used is 72 MHz. TIM1 frequency is defined as follow: TIM1 frequency = TIM1CLK/(TIM1_Period + 1) = 17.57 KHz. The TIM1 CCR1 register value is equal to 0x7FF, so the TIM1 Channel 1 and TIM1 Channel 1N generate a PWM signal with a frequency equal to 17.57 KHz and a duty cycle equal to: TIM1 Channel1 duty cycle = TIM1_CCR1 /( TIM1_Period + 1) = 50%. The TIM1 CCR2 register value is equal to 0x5FF, so the TIM1 Channel 2 and TIM1 Channel 2N generate a PWM signal with a frequency equal to 17.57 KHz and a duty cycle equal to: TIM1 Channel2 duty cycle = TIM1_CCR2 / ( TIM1_Period + 1)= 37.5%. The TIM1 CCR3 register value is equal to 0x3FF, so the TIM1 Channel 3 and TIM1 Channel 3N generate a PWM signal with a frequency equal to 17.57 KHz and a duty cycle equal to: TIM1 Channel3 duty cycle = TIM1_CCR3 / ( TIM1_Period + 1) = 25%. The TIM1 CCR4 register value is equal to 0x1FF, so the TIM1 Channel 4 generate a PWM signal with a frequency equal to 17.57 KHz and a duty cycle equal to: TIM1 Channel4 duty cycle = TIM1_CCR4 / ( TIM1_Period + 1) = 12.5%. 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 @par Hardware and Software environment - This example runs on STM32F10x Connectivity line, High-Density, Medium-Density and Low-Density Devices. - This example has been tested with STMicroelectronics STM3210C-EVAL (STM32F10x Connectivity line), STM3210E-EVAL (STM32F10x High-Density) and STM3210B-EVAL (STM32F10x 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 and STM3210B-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: - Create a project and setup all project configuration - Add the required Library files: - stm32f10x_gpio.c - stm32f10x_rcc.c - stm32f10x_tim.c - system_stm32f10x.c (under Libraries\CMSIS\Core\CM3) - Edit stm32f10x.h file to select the device you are working on. @b 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. - Link all compiled files and load your image into target memory - Run the example @note - Low-density devices are STM32F101xx and STM32F103xx microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. - Medium-density devices are STM32F101xx and STM32F103xx microcontrollers where the Flash memory density ranges between 32 and 128 Kbytes. - High-density devices are STM32F101xx and STM32F103xx microcontrollers where the Flash memory density ranges between 256 and 512 Kbytes. - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. *

© COPYRIGHT 2009 STMicroelectronics

*/

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