文件列表:

ADC_TIM1\main.c (7265, 2010-10-18)
ADC_TIM1\stm32f10x_conf.h (3233, 2010-10-18)
ADC_TIM1\stm32f10x_it.c (4369, 2010-10-18)
ADC_TIM1\stm32f10x_it.h (1893, 2010-10-18)
ADC_TIM1\system_stm32f10x.c (32880, 2010-10-18)
ADC_TIM1 (0, 2011-11-11)

/** @page DMA_ADC_TIM1 DMA_ADC_TIM1 @verbatim ******************** (C) COPYRIGHT 2010 STMicroelectronics ******************* * @file DMA/ADC_TIM1/readme.txt * @author MCD Application Team * @version V3.4.0 * @date 10/15/2010 * @brief Description of the DMA ADC1 TIM1 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 provides a description of how to use a DMA channel to transfer continuously a data from a peripheral (ADC1) to another peripheral (TIM1) supporting DMA transfer. The ADC channel14 is configured to be converted continuously. TIM1_CH1 is configured to generate a PWM signal on its output. The dedicated DMA1 channel5 is configured to transfer in circular mode the last ADC channel14 converted value to the TIM1_CCR1 register. The DMA channel request is driven by the TIM1 update event. The duty cycle of TIM1_CH1 output signal is then changed each time the input voltage value on ADC channel14 pin is modified. The duty cycle variation can be visualized on oscilloscope on the TIM1_CH1 pin PA.08 while changing the analog input on ADC channel14 using the potentiometer. @par Directory contents - DMA/ADC_TIM1/stm32f10x_conf.h Library Configuration file - DMA/ADC_TIM1/stm32f10x_it.c Interrupt handlers - DMA/ADC_TIM1/stm32f10x_it.h Interrupt handlers header file - DMA/ADC_TIM1/main.c Main program - DMA/ADC_TIM1/system_stm32f10x.c STM32F10x system source file @par Hardware and Software environment - This example runs on STM32F10x Connectivity line, High-Density, Medium-Density, XL-Density, High-Density Value line, Medium-Density Value line, Low-Density and Low-Density Value line Devices. - This example has been tested with STMicroelectronics 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. - STM32100B-EVAL Set-up - Connect a variable power supply 0-3.3V to ADC Channel14 mapped on pin PC.04 (potentiometer RV2) - Connect an oscilloscope to TIM1_CH1 (PA.08) pin - STM3210C-EVAL Set-up - Connect a variable power supply 0-3.3V to ADC Channel14 mapped on pin PC.04 (potentiometer RV1) - Connect an oscilloscope to TIM1_CH1 (PA.08) pin - STM3210E-EVAL Set-up - Connect a variable power supply 0-3.3V to ADC Channel14 mapped on pin PC.04 (potentiometer RV1) - Connect an oscilloscope to TIM1_CH1 (PA.08) pin - STM3210B-EVAL Set-up - Connect a variable power supply 0-3.3V to ADC Channel14 mapped on pin PC.04 (potentiometer RV1) - Connect an oscilloscope to TIM1_CH1 (PA.08) pin - STM32100E-EVAL Set-up - Connect a variable power supply 0-3.3V to ADC Channel14 mapped on pin PC.04 (potentiometer RV1) - Connect an oscilloscope to TIM1_CH1 (PA.08) pin @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_adc.c - stm32f10x_dma.c - stm32f10x_gpio.c - stm32f10x_rcc.c - stm32f10x_tim.c - Edit stm32f10x.h file to select the device you are working on. - Edit stm32_eval.h file to select the evaluation board you will use. @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 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 *** and 128 Kbytes. - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers where the Flash memory density ranges between *** 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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