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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 /**
2 @page DAC_OneChannelDMA_Escalator DAC one channel DMA escalator example
3
4 @verbatim
5 ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
6 * @file DAC/OneChannelDMA_Escalator/readme.txt
7 * @author MCD Application Team
8 * @version V3.5.0
9 * @date 08-April-2011
10 * @brief Description of the DAC one channel DMA escalator 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 describes how to use one DAC channel mode with DMA to generate an
24 escalator signal on DAC channel1 output.
25
26 DAC channel1 conversion is configured to be triggered by TIM6 TRGO triggers and
27 without noise/triangle wave generation. 8bit right data alignment is selected
28 since we choose to access DAC_DHR8R1 register.
29 DMA2 channel3 is configured to transfer continuously, byte by byte, a 6-byte
30 buffer to the DAC1 register DAC_DHR8R1.
31
32 The transferred 6bytes buffer is made to have an escalator signal on DAC channel1
33 output. DAC channel1 is then enabled. Once TIM6 is enabled, each TIM6 TRGO update
34 event generate a DMA request which transfer data to the DAC1 register and DAC
35 conversion is started. The escalator signal can be visualized by connecting PA.04
36 pin to an oscilloscope.
37
38 @par Directory contents
39
40 - DAC/OneChannelDMA_Escalator/stm32f10x_conf.h Library Configuration file
41 - DAC/OneChannelDMA_Escalator/stm32f10x_it.c Interrupt handlers
42 - DAC/OneChannelDMA_Escalator/stm32f10x_it.h Header for stm32f10x_it.c
43 - DAC/OneChannelDMA_Escalator/main.c Main program
44 - DAC/OneChannelDMA_Escalator/system_stm32f10x.c STM32F10x system source file
45
46 @par Hardware and Software environment
47
48 - This example runs on STM32F10x Connectivity line, High-Density, XL-Density,
49 High-Density Value line, Medium-Density Value line and Low-Density Value
50 line Devices.
51
52 - This example has been tested with STMicroelectronics STM32100B-EVAL
53 (Medium-Density Value line),STM32100E-EVAL (High-Density Value line),
54 STM3210C-EVAL (Connectivity line) and STM3210E-EVAL (High-Density and
55 XL-Density) evaluation boards and can be easily tailored to any other
56 supported device and development board.
57
58 - STM32100B-EVAL Set-up
59 - Connect PA.04 pin to an oscilloscope
60 @note Make shure that jumper JP2 is open.
61
62 - STM3210C-EVAL Set-up
63 - Connect PA.04 pin to an oscilloscope
64 @note Make shure that jumper JP15 is open.
65
66 - STM3210E-EVAL Set-up
67 - Connect PA.04 pin to an oscilloscope
68
69 - STM32100E-EVAL Set-up
70 - Connect PA.04 pin to an oscilloscope
71
72 @par How to use it ?
73
74 In order to make the program work, you must do the following :
75 - Copy all source files from this example folder to the template folder under
76 Project\STM32F10x_StdPeriph_Template
77 - Open your preferred toolchain
78 - Rebuild all files and load your image into target memory
79 - Run the example
80
81 @note
82 - Low-density Value line devices are STM32F100xx microcontrollers where the
83 Flash memory density ranges between 16 and 32 Kbytes.
84 - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
85 microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
86 - Medium-density Value line devices are STM32F100xx microcontrollers where
87 the Flash memory density ranges between 64 and 128 Kbytes.
88 - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
89 microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
90 - High-density Value line devices are STM32F100xx microcontrollers where
91 the Flash memory density ranges between 256 and 512 Kbytes.
92 - High-density devices are STM32F101xx and STM32F103xx microcontrollers where
93 the Flash memory density ranges between 256 and 512 Kbytes.
94 - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where
95 the Flash memory density ranges between 512 and 1024 Kbytes.
96 - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.
97
98 * <h3><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h3>
99 */