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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/DMA_Polling/readme.txt @ 0:c59513fd84fb
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author | Daniel O'Connor <darius@dons.net.au> |
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date | Mon, 03 Oct 2011 21:19:15 +1030 |
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1 /** |
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2 @page USART_DMA_Polling USART DMA Polling 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 USART/DMA_Polling/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 USART DMA Polling 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 provides a basic communication between USARTy and USARTz using DMA |
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24 capability. USARTy and USARTz can be USART1 and USART2 or USART2 and USART3, |
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25 depending on the STMicroelectronics EVAL board you are using. |
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26 |
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27 First, the DMA transfers data from TxBuffer2 buffer to USARTz Transmit data |
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28 register, then this data is sent to USARTy. Data received by USARTy is transferred |
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29 by DMA and stored in RxBuffer1 then compared with the send ones and the result |
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30 of this comparison is stored in the "TransferStatus1" variable. |
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31 |
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32 In the same time, the DMA transfers data from TxBuffer1 buffer to USARTy Transmit |
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33 data register, then this data is sent to USARTz. Data received by USARTz is |
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34 transferred by DMA and stored in RxBuffer2 then compared with the send ones and |
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35 the result of this comparison is stored in the "TransferStatus2" variable. |
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36 |
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37 USARTy and USARTz configured as follow: |
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38 - BaudRate = 230400 baud |
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39 - Word Length = 8 Bits |
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40 - One Stop Bit |
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41 - No parity |
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42 - Hardware flow control disabled (RTS and CTS signals) |
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43 - Receive and transmit enabled |
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44 |
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45 @par Directory contents |
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46 |
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47 - USART/DMA_Polling/platform_config.h Evaluation board specific configuration file |
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48 - USART/DMA_Polling/stm32f10x_conf.h Library Configuration file |
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49 - USART/DMA_Polling/stm32f10x_it.h Interrupt handlers header file |
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50 - USART/DMA_Polling/stm32f10x_it.c Interrupt handlers |
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51 - USART/DMA_Polling/main.c Main program |
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52 - USART/DMA_Polling/system_stm32f10x.c STM32F10x system source file |
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53 |
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54 @par Hardware and Software environment |
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55 |
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56 - This example runs on STM32F10x Connectivity line, High-Density, High-Density |
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57 Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density |
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58 and Low-Density Value line Devices. |
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59 |
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60 - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density |
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61 Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), |
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62 STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) |
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63 evaluation boards and can be easily tailored to any other supported device |
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64 and development board. |
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65 To select the STMicroelectronics evaluation board used to run the example, |
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66 uncomment the corresponding line in USART/DMA_Polling/platform_config.h file |
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67 |
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68 - STM32100E-EVAL Set-up |
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69 - Connect a null-modem female/female RS232 cable between CN10 (USART1) and |
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70 CN5 (USART2). |
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71 @note Make sure that jumper JP5 is not open. |
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72 |
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73 - STM32100B-EVAL Set-up |
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74 - Connect a null-modem female/female RS232 cable between CN10 (USART1) and |
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75 CN9 (USART2). |
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76 @note In this case USART2 Tx and Rx pins are remapped by software on PD.05 |
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77 and PD.06 respectively. |
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78 |
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79 - STM3210C-EVAL Set-up |
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80 - Connect USART2 Tx pin (PD.05) to USART3 Rx pin (PC.11) |
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81 - Connect USART2 Rx pin (PD.06) to USART3 Tx pin (PC.10) |
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82 @note In this case USART3 Tx and Rx pins are remapped by software. |
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83 Make sure that jumpers JP19 and JP18 are open. |
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84 |
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85 - STM3210E-EVAL Set-up |
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86 - Connect a null-modem female/female RS232 cable between CN12 (USART1) and |
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87 CN8 (USART2). |
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88 |
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89 - STM3210B-EVAL Set-up |
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90 - Connect a null-modem female/female RS232 cable between CN6 (USART1) and |
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91 CN5 (USART2). |
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92 - In this case USART2 Tx and Rx pins are remapped by software on PD.05 |
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93 and PD.06 respectively. |
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94 |
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95 @par How to use it ? |
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96 |
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97 In order to make the program work, you must do the following : |
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98 - Copy all source files from this example folder to the template folder under |
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99 Project\STM32F10x_StdPeriph_Template |
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100 - Open your preferred toolchain |
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101 - Rebuild all files and load your image into target memory |
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102 - Run the example |
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103 |
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104 @note |
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105 - Low-density Value line devices are STM32F100xx microcontrollers where the |
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106 Flash memory density ranges between 16 and 32 Kbytes. |
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107 - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx |
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108 microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. |
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109 - Medium-density Value line devices are STM32F100xx microcontrollers where |
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110 the Flash memory density ranges between 64 and 128 Kbytes. |
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111 - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx |
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112 microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. |
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113 - High-density Value line devices are STM32F100xx microcontrollers where |
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114 the Flash memory density ranges between 256 and 512 Kbytes. |
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115 - High-density devices are STM32F101xx and STM32F103xx microcontrollers where |
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116 the Flash memory density ranges between 256 and 512 Kbytes. |
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117 - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where |
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118 the Flash memory density ranges between 512 and 1024 Kbytes. |
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119 - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. |
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120 |
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121 * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> |
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122 */ |