LPCOpen Platform for LPC18XX/43XX microcontrollers: C:/w/lpcopen_docs/software/lpc_core/lpc_chip/chip_common/eeprom.c Source File

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eeprom.c
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1 /*
2 * @brief Common EEPROM support functions
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 #include "chip.h"
33 #include "eeprom.h"
34
35 /*****************************************************************************
36 * Private types/enumerations/variables
37 ****************************************************************************/
38
39 /*****************************************************************************
40 * Public types/enumerations/variables
41 ****************************************************************************/
42
43 /*****************************************************************************
44 * Private functions
45 ****************************************************************************/
46
47 /*****************************************************************************
48 * Public functions
49 ****************************************************************************/
50
51 /* Write data to EEPROM */
52 uint8_t Chip_EEPROM_Write(uint32_t dstAdd, uint8_t *ptr, uint32_t byteswrt)
53 {
54 uint32_t command[5], result[5];
55
56 command[0] = IAP_EEPROM_WRITE;
57 command[1] = dstAdd;
58 command[2] = (uint32_t) ptr;
59 command[3] = byteswrt;
60 command[4] = SystemCoreClock / 1000;
61 iap_entry(command, result);
62
63 return result[0];
64 }
65
66 /* Read data from EEPROM */
67 uint8_t Chip_EEPROM_Read(uint32_t srcAdd, uint8_t *ptr, uint32_t bytesrd)
68 {
69 uint32_t command[5], result[5];
70
71 command[0] = IAP_EEPROM_READ;
72 command[1] = srcAdd;
73 command[2] = (uint32_t) ptr;
74 command[3] = bytesrd;
75 command[4] = SystemCoreClock / 1000;
76 iap_entry(command, result);
77
78 return result[0];
79 }