文件列表:

DAC (0, 2017-07-03)
DAC\DAC_SignalsGeneration (0, 2017-07-03)
DAC\DAC_SignalsGeneration\EWARM (0, 2017-07-03)
DAC\DAC_SignalsGeneration\EWARM\Project.ewd (43407, 2017-04-21)
DAC\DAC_SignalsGeneration\EWARM\Project.ewp (29516, 2017-04-21)
DAC\DAC_SignalsGeneration\EWARM\Project.eww (161, 2017-04-21)
DAC\DAC_SignalsGeneration\EWARM\startup_stm32l452xx.s (21181, 2017-04-21)
DAC\DAC_SignalsGeneration\EWARM\stm32l452xx_flash.icf (1646, 2017-04-21)
DAC\DAC_SignalsGeneration\Inc (0, 2017-07-03)
DAC\DAC_SignalsGeneration\Inc\main.h (3831, 2017-04-21)
DAC\DAC_SignalsGeneration\Inc\stm32l4xx_hal_conf.h (13412, 2017-04-21)
DAC\DAC_SignalsGeneration\Inc\stm32l4xx_it.h (3206, 2017-04-21)
DAC\DAC_SignalsGeneration\MDK-ARM (0, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\Project.uvguix.min (167091, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\Project.uvoptx (17016, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\Project.uvprojx (19073, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\RTE (0, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\RTE\RTE_Components.h (357, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO (0, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\ExtDll.iex (19, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\Project_STM32L452RE_NUCLEO.dep (58684, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.axf (814972, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.build_log.htm (2062, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.htm (56480, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.lnp (1098, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.map (116472, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\STM32L452RE_NUCLEO.sct (479, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\main.crf (828679, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\main.d (3090, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\main.o (938008, 2017-07-28)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\startup_stm32l452xx.d (65, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\startup_stm32l452xx.o (7336, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal.crf (825774, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal.d (3286, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal.o (973692, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal_cortex.crf (824134, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal_cortex.d (3510, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal_cortex.o (952824, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal_dac.crf (827237, 2017-07-26)
DAC\DAC_SignalsGeneration\MDK-ARM\STM32L452RE_NUCLEO\stm32l4xx_hal_dac.d (3414, 2017-07-26)
... ...

/** @page DAC_SimpleConversion DAC Simple Conversion example @verbatim ******************** (C) COPYRIGHT 2016 STMicroelectronics ******************* * @file DAC/DAC_SimpleConversion/readme.txt * @author MCD Application Team * @version V1.8.0 * @date 21-April-2017 * @brief Description of the DAC Simple Conversion example. ****************************************************************************** * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** @endverbatim @par Example Description This example provides a short description of how to use the DAC peripheral to do a simple conversion. - The example uses the DAC for a simple conversion in 8 bits right alignment of 0xFF value, the result of conversion can be seen by connecting PA4(DAC channel1) to an oscilloscope. The observed value is 3.3V. - The low power mode of DAC (sample and hold mode) can also be used while Cortex is in sleep mode. - The tests steps are: - Step 0: DAC: normal power mode Cortex: run mode - Step 1: DAC: Low power mode Cortex: Sleep mode - The switch from step 0 to step 1 is done by pressing the user button. - The Cortex wake up from Sleep mode once the user button is pressed again STM32L452RE-Nucleo Rev C board's LED can be used to monitor the process status: - LED2 is slowly blinking (1 sec. period) and example is stopped (using infinite loop) when there is an error during process. @par Directory contents - DAC/DAC_Simple_Conversion/Inc/stm32l4xx_hal_conf.h HAL configuration file - DAC/DAC_Simple_Conversion/Inc/stm32l4xx_it.h DMA interrupt handlers header file - DAC/DAC_Simple_Conversion/Inc/main.h Header for main.c module - DAC/DAC_Simple_Conversion/Src/stm32l4xx_it.c DMA interrupt handlers - DAC/DAC_Simple_Conversion/Src/main.c Main program - DAC/DAC_Simple_Conversion/Src/stm32l4xx_hal_msp.c HAL MSP file - DAC/DAC_Simple_Conversion/Src/system_stm32l4xx.c STM32L4xx system source file @par Hardware and Software environment - This example runs on STM32L452xx devices. - This example has been tested with STM32L452RE-Nucleo Rev C board and can be easily tailored to any other supported device and development board. - STM32L452RE-Nucleo Rev C Set-up - Connect PA4 (DAC Channel1) (pin 32 in CN7) to an oscilloscope. - You may redo the tests by changing the sample and hold parameters of the DAC. @par How to use it ? In order to make the program work, you must do the following : - Open your preferred toolchain - Rebuild all files and load your image into target memory - Run the example *

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