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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/readme.txt @ 8:58d76cf522ff

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Split out code into separate files.
author Daniel O'Connor <darius@dons.net.au>
date Sat, 04 Feb 2012 13:29:31 +1030
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1 /**
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2 @page TIM_OCActive TIM OC Active 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 TIM/OCActive/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 TIM OC Active 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 shows how to configure the TIM peripheral to generate four different
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24 signals with four different delays.
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25
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26 The TIM3CLK frequency is set to SystemCoreClock / 2 (Hz), and the objective is
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27 to get TIM3 counter clock at 1 KHz so the Prescaler is computed as following:
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28 - Prescaler = (TIM3CLK / TIM3 counter clock) - 1
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29 SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density
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30 and Connectivity line devices and to 24 MHz for Low-Density Value line,
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31 Medium-Density Value line and High-Density Value line devices.
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32
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33 The TIM3 CCR1 register value is equal to 1000:
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34 TIM3_CH1 delay = CCR1_Val/TIM3 counter clock = 1000 ms
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35 so the TIM3 Channel 1 generates a signal with a delay equal to 1000 ms.
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36
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37 The TIM3 CCR2 register value is equal to 500:
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38 TIM3_CH2 delay = CCR2_Val/TIM3 counter clock = 500 ms
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39 so the TIM3 Channel 2 generates a signal with a delay equal to 500 ms.
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40
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41 The TIM3 CCR3 register value is equal to 250:
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42 TIM3_CH3 delay = CCR3_Val/TIM3 counter clock = 250 ms
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43 so the TIM3 Channel 3 generates a signal with a delay equal to 250 ms.
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44
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45 The TIM3 CCR4 register value is equal to 125:
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46 TIM3_CH4 delay = CCR4_Val/TIM3 counter clock = 125 ms
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47 so the TIM3 Channel 4 generates a signal with a delay equal to 125 ms.
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48
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49 The delay correspond to the time difference between PC.06 and
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50 TIM3_CHx signal rising edges in case of STM32100E-EVAL, STM32100B-EVAL, STM3210E-EVAL
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51 and STM3210B-EVAL
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52
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53 The delay correspond to the time difference between PD.07 and
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54 TIM3_CHx signal rising edges in case of STM3210C-EVAL
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55
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56 @par Directory contents
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57
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58 - TIM/OCActive/stm32f10x_conf.h Library Configuration file
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59 - TIM/OCActive/stm32f10x_it.c Interrupt handlers
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60 - TIM/OCActive/stm32f10x_it.h Interrupt handlers header file
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61 - TIM/OCActive/main.c Main program
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62 - TIM/OCActive/system_stm32f10x.c STM32F10x system source file
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63
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64 @par Hardware and Software environment
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65
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66
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67 - This example runs on STM32F10x Connectivity line, High-Density, High-Density
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68 Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density
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69 and Low-Density Value line Devices.
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70
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71 - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density
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72 Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line),
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73 STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density)
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74 evaluation boards and can be easily tailored to any other supported device
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75 and development board.
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76
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77
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78 - STM3210C-EVAL Set-up
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79 - Connect the TIM3 pins(TIM3 full remapped pins) to an oscilloscope to
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80 monitor the different waveforms:
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81 - PD.07
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82 - PC.06 (TIM3_CH1)
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83 - PC.07 (TIM3_CH2)
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84 - PC.08 (TIM3_CH3)
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85 - PC.09 (TIM3_CH4)
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86
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87 - STM32100E-EVAL, STM32100B-EVAL, STM3210E-EVAL and STM3210B-EVAL Set-up
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88 - Connect the following pins to an oscilloscope to monitor the different
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89 waveforms:
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90 - PC.06
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91 - PA.06 (TIM3_CH1)
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92 - PA.07 (TIM3_CH2)
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93 - PB.00 (TIM3_CH3)
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94 - PB.01 (TIM3_CH4)
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95
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96 @par How to use it ?
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97
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98 In order to make the program work, you must do the following :
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99 - Copy all source files from this example folder to the template folder under
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100 Project\STM32F10x_StdPeriph_Template
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101 - Open your preferred toolchain
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102 - Rebuild all files and load your image into target memory
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103 - Run the example
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104
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105 @note
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106 - Low-density Value line devices are STM32F100xx microcontrollers where the
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107 Flash memory density ranges between 16 and 32 Kbytes.
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108 - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
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109 microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
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110 - Medium-density Value line devices are STM32F100xx microcontrollers where
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111 the Flash memory density ranges between 64 and 128 Kbytes.
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112 - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
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113 microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
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114 - High-density Value line devices are STM32F100xx microcontrollers where
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115 the Flash memory density ranges between 256 and 512 Kbytes.
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116 - High-density devices are STM32F101xx and STM32F103xx microcontrollers where
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117 the Flash memory density ranges between 256 and 512 Kbytes.
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118 - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where
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119 the Flash memory density ranges between 512 and 1024 Kbytes.
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120 - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.
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121
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122 * <h3><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h3>
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123 */