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| readme.dox | A D | 13-Nov-2021 | 3.1 KiB | 70 | 67 |
readme.dox
1/*
2 * @brief UART DMA example
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2014
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_ROM_UART LPC15xx UART using DMA ROM example
33 * @ingroup EXAMPLES_PERIPH_15XX
34 * <b>Example description</b><br>
35 * This examples shows how to use the DMA ROM driver to handle servicing
36 * of UART transmit and receive operations to offload the MCU and reduce
37 * interrupt processing.<br>
38 *
39 * UART transmit operations have a known transmit size and are queued to the
40 * DMA controller via descriptors setup for the transfer. Descriptors are
41 * only queued to the DMA controller when data is waiting to be sent.
42 * This specific implementation can queue multiple UART buffers with a single
43 * DMA interrupt per UART buffer sent. This example doesn't used linked
44 * DMA descriptors.<br>
45 *
46 * UART receive operations have a fixed list of descriptors and buffer sizes
47 * setup for a Ping Pong transfer, linked list is not supported by the ROM driver.
48 * The DMA controller will generate a DMA interrupt for UART receive only when
49 * a full buffer of data has been received. Once this buffer is received, it
50 * is sent back out via UART transmit via DMA.<br>
51 *
52 * <b>Special connection requirements</b><br>
53 * There are no special connection requirements for this example.<br>
54 *
55 * <b>Build procedures:</b><br>
56 * Visit the <a href="http://www.lpcware.com/content/project/lpcopen-platform-nxp-lpc-microcontrollers/lpcopen-v200-quickstart-guides">LPCOpen quickstart guides</a>
57 * to get started building LPCOpen projects.
58 *
59 * <b>Supported boards and board setup:</b><br>
60 * @ref LPCOPEN_15XX_BOARD_LPCXPRESSO_1549<br>
61 *
62 * <b>Submitting LPCOpen issues:</b><br>
63 * @ref LPCOPEN_COMMUNITY
64 * @{
65 */
66
67/**
68 * @}
69 */
70