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| readme.dox | A D | 13-Nov-2021 | 3.1 KiB | 68 | 65 |
readme.dox
1/*
2 * @brief DMA memory to memory transfer example
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2013
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32/** @defgroup EXAMPLES_PERIPH_15XX_DMA_MEM LPC15xx DMA memory to memory transfer example
33 * @ingroup EXAMPLES_PERIPH_15XX
34 * <b>Example description</b><br>
35 * This example shows how to setup and use the DMA controller for a limited
36 * software triggered memory to memory transfer. Because of the limited burst
37 * transfer size of the DMA (1024 transfers max) and limited burst size, DMA
38 * M2M operations are somewhat specialized, but they do have a good performance
39 * boost over memcpy() and memmove() functions. They would work best for
40 * smaller transfers.<br>
41 *
42 * Time measurement for performance is in milliSeconds. Lower values indicate
43 * higher data transfer performance. A time 50% smaller than another time would
44 * mean the same operation was about 2x faster. Times are provided for similar
45 * memmove(), memcpy(), and DMA data move operations.<br>
46 *
47 * The example also includes a test enable definition (XFERTEST) that will
48 * also perform data testing when it is defined.<br>
49 *
50 * <b>Special connection requirements</b><br>
51 * There are no special connection requirements for this example.<br>
52 *
53 * <b>Build procedures:</b><br>
54 * Visit the <a href="http://www.lpcware.com/content/project/lpcopen-platform-nxp-lpc-microcontrollers/lpcopen-v200-quickstart-guides">LPCOpen quickstart guides</a>
55 * to get started building LPCOpen projects.
56 *
57 * <b>Supported boards and board setup:</b><br>
58 * @ref LPCOPEN_15XX_BOARD_LPCXPRESSO_1549<br>
59 *
60 * <b>Submitting LPCOpen issues:</b><br>
61 * @ref LPCOPEN_COMMUNITY
62 * @{
63 */
64
65/**
66 * @}
67 */
68