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comparison libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HalfDuplex/readme.txt @ 0:c59513fd84fb
Initial commit of STM32 test code.
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 /** | |
2 @page USART_HalfDuplex USART Half Duplex example | |
3 | |
4 @verbatim | |
5 ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* | |
6 * @file USART/HalfDuplex/readme.txt | |
7 * @author MCD Application Team | |
8 * @version V3.5.0 | |
9 * @date 08-April-2011 | |
10 * @brief Description of the USART Half Duplex example. | |
11 ****************************************************************************** | |
12 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS | |
13 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE | |
14 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY | |
15 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING | |
16 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE | |
17 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. | |
18 ****************************************************************************** | |
19 @endverbatim | |
20 | |
21 @par Example Description | |
22 | |
23 This example provides a basic communication between USARTy and USARTz in | |
24 Half-Duplex mode using flags. USARTy and USARTz can be USART1 and USART2 or | |
25 USART2 and USART3, depending on the STMicroelectronics EVAL board you are using. | |
26 | |
27 First, the USARTy sends data from TxBuffer1 buffer to USARTz using TXE flag. | |
28 Data received using RXNE flag by USARTz is stored in RxBuffer2 then compared with | |
29 the sent ones and the result of this comparison is stored in the "TransferStatus1" | |
30 variable. | |
31 | |
32 Then, the USARTz sends data from TxBuffer2 buffer to USARTy using TXE flag. | |
33 Data received using RXNE flag by USARTy is stored in RxBuffer1 then compared with | |
34 the sent ones and the result of this comparison is stored in the "TransferStatus2" | |
35 variable. | |
36 | |
37 USARTy and USARTz configured as follow: | |
38 - BaudRate = 230400 baud | |
39 - Word Length = 8 Bits | |
40 - One Stop Bit | |
41 - Even parity | |
42 - Hardware flow control disabled (RTS and CTS signals) | |
43 - Receive and transmit enabled | |
44 | |
45 @par Directory contents | |
46 | |
47 - USART/HalfDuplex/platform_config.h Evaluation board specific configuration file | |
48 - USART/HalfDuplex/stm32f10x_conf.h Library Configuration file | |
49 - USART/HalfDuplex/stm32f10x_it.h Interrupt handlers header file | |
50 - USART/HalfDuplex/stm32f10x_it.c Interrupt handlers | |
51 - USART/HalfDuplex/main.c Main program | |
52 - USART/HalfDuplex/system_stm32f10x.c STM32F10x system source file | |
53 | |
54 @par Hardware and Software environment | |
55 | |
56 - This example runs on STM32F10x Connectivity line, High-Density, High-Density | |
57 Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density | |
58 and Low-Density Value line Devices. | |
59 | |
60 - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density | |
61 Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), | |
62 STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) | |
63 evaluation boards and can be easily tailored to any other supported device | |
64 and development board. | |
65 To select the STMicroelectronics evaluation board used to run the example, | |
66 uncomment the corresponding line in USART/HalfDuplex/platform_config.h file | |
67 | |
68 - STM32100E-EVAL Set-up | |
69 - Connect USART1_Tx(PA.09) to USART2_Tx(PA.02). | |
70 | |
71 - STM32100B-EVAL Set-up | |
72 - Connect USART1_Tx(PA.09) to USART2_Tx(PD.05). | |
73 | |
74 - STM3210C-EVAL Set-up | |
75 - Connect USART2 Tx pin (PD.05) to USART3 Tx pin (PC.10) and connect a | |
76 pull-up resistor to this line (10K). | |
77 @note In this case USART3 Tx pin is remapped by software. | |
78 Make sure that jumpers JP19 and JP18 are open. | |
79 | |
80 - STM3210E-EVAL Set-up | |
81 - Connect USART1_Tx(PA.09) to USART2_Tx(PA.02) and connect a pull-up resistor to | |
82 this line (10K). | |
83 | |
84 - STM3210B-EVAL Set-up | |
85 - Connect USART1_Tx(PA.09) to USART2_Tx(PD.05) and connect a pull-up resistor to | |
86 this line (10K). | |
87 | |
88 @par How to use it ? | |
89 | |
90 In order to make the program work, you must do the following : | |
91 - Copy all source files from this example folder to the template folder under | |
92 Project\STM32F10x_StdPeriph_Template | |
93 - Open your preferred toolchain | |
94 - Rebuild all files and load your image into target memory | |
95 - Run the example | |
96 | |
97 @note | |
98 - Low-density Value line devices are STM32F100xx microcontrollers where the | |
99 Flash memory density ranges between 16 and 32 Kbytes. | |
100 - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx | |
101 microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. | |
102 - Medium-density Value line devices are STM32F100xx microcontrollers where | |
103 the Flash memory density ranges between 64 and 128 Kbytes. | |
104 - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx | |
105 microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. | |
106 - High-density Value line devices are STM32F100xx microcontrollers where | |
107 the Flash memory density ranges between 256 and 512 Kbytes. | |
108 - High-density devices are STM32F101xx and STM32F103xx microcontrollers where | |
109 the Flash memory density ranges between 256 and 512 Kbytes. | |
110 - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where | |
111 the Flash memory density ranges between 512 and 1024 Kbytes. | |
112 - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. | |
113 | |
114 * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> | |
115 */ |