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Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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1 /**
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2 @page DAC_OneChannelDMA_Escalator DAC one channel DMA escalator example
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3
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4 @verbatim
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5 ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
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6 * @file DAC/OneChannelDMA_Escalator/readme.txt
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7 * @author MCD Application Team
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8 * @version V3.5.0
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9 * @date 08-April-2011
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10 * @brief Description of the DAC one channel DMA escalator example.
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11 ******************************************************************************
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12 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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13 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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14 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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15 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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16 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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17 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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18 ******************************************************************************
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19 @endverbatim
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20
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21 @par Example Description
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22
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23 This example describes how to use one DAC channel mode with DMA to generate an
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24 escalator signal on DAC channel1 output.
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25
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26 DAC channel1 conversion is configured to be triggered by TIM6 TRGO triggers and
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27 without noise/triangle wave generation. 8bit right data alignment is selected
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28 since we choose to access DAC_DHR8R1 register.
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29 DMA2 channel3 is configured to transfer continuously, byte by byte, a 6-byte
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30 buffer to the DAC1 register DAC_DHR8R1.
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31
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32 The transferred 6bytes buffer is made to have an escalator signal on DAC channel1
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33 output. DAC channel1 is then enabled. Once TIM6 is enabled, each TIM6 TRGO update
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34 event generate a DMA request which transfer data to the DAC1 register and DAC
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35 conversion is started. The escalator signal can be visualized by connecting PA.04
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36 pin to an oscilloscope.
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37
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38 @par Directory contents
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39
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40 - DAC/OneChannelDMA_Escalator/stm32f10x_conf.h Library Configuration file
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41 - DAC/OneChannelDMA_Escalator/stm32f10x_it.c Interrupt handlers
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42 - DAC/OneChannelDMA_Escalator/stm32f10x_it.h Header for stm32f10x_it.c
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43 - DAC/OneChannelDMA_Escalator/main.c Main program
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44 - DAC/OneChannelDMA_Escalator/system_stm32f10x.c STM32F10x system source file
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45
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46 @par Hardware and Software environment
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47
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48 - This example runs on STM32F10x Connectivity line, High-Density, XL-Density,
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49 High-Density Value line, Medium-Density Value line and Low-Density Value
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50 line Devices.
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51
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52 - This example has been tested with STMicroelectronics STM32100B-EVAL
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53 (Medium-Density Value line),STM32100E-EVAL (High-Density Value line),
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54 STM3210C-EVAL (Connectivity line) and STM3210E-EVAL (High-Density and
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55 XL-Density) evaluation boards and can be easily tailored to any other
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56 supported device and development board.
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57
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58 - STM32100B-EVAL Set-up
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59 - Connect PA.04 pin to an oscilloscope
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60 @note Make shure that jumper JP2 is open.
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61
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62 - STM3210C-EVAL Set-up
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63 - Connect PA.04 pin to an oscilloscope
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64 @note Make shure that jumper JP15 is open.
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65
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66 - STM3210E-EVAL Set-up
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67 - Connect PA.04 pin to an oscilloscope
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68
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69 - STM32100E-EVAL Set-up
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70 - Connect PA.04 pin to an oscilloscope
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71
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72 @par How to use it ?
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73
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74 In order to make the program work, you must do the following :
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75 - Copy all source files from this example folder to the template folder under
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76 Project\STM32F10x_StdPeriph_Template
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77 - Open your preferred toolchain
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78 - Rebuild all files and load your image into target memory
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79 - Run the example
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80
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81 @note
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82 - Low-density Value line devices are STM32F100xx microcontrollers where the
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83 Flash memory density ranges between 16 and 32 Kbytes.
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84 - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
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85 microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
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86 - Medium-density Value line devices are STM32F100xx microcontrollers where
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87 the Flash memory density ranges between 64 and 128 Kbytes.
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88 - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
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89 microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
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90 - High-density Value line devices are STM32F100xx microcontrollers where
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91 the Flash memory density ranges between 256 and 512 Kbytes.
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92 - High-density devices are STM32F101xx and STM32F103xx microcontrollers where
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93 the Flash memory density ranges between 256 and 512 Kbytes.
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94 - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where
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95 the Flash memory density ranges between 512 and 1024 Kbytes.
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96 - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.
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97
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98 * <h3><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h3>
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99 */