LPCOpen Platform  v1.03
LPCOpen Platform for NXP LPC Microcontrollers
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gpio_13xx.c
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1 /*
2  * @brief LPC13xx GPIO driver
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2012
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 
34 /*****************************************************************************
35  * Private types/enumerations/variables
36  ****************************************************************************/
37 
38 /*****************************************************************************
39  * Public types/enumerations/variables
40  ****************************************************************************/
41 
42 /*****************************************************************************
43  * Private functions
44  ****************************************************************************/
45 
46 /*****************************************************************************
47  * Public functions
48  ****************************************************************************/
49 
50 /* Initialize GPIO block */
51 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
52 {
53  /* Enable GPIO clocking */
54  Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
55 #if defined(CHIP_LPC1347)
56  IP_GPIO_Init(pGPIO);
57 #else
58  IP_GPIO_Init(LPC_GPIO_PORTn_BASE(pGPIO, 0));
59  IP_GPIO_Init(LPC_GPIO_PORTn_BASE(pGPIO, 1));
60 #endif
61 #if defined(CHIP_LPC11XXLV) || defined(CHIP_LPC11CXX)
62  IP_GPIO_Init(LPC_GPIO_PORTn_BASE(pGPIO, 2));
63  IP_GPIO_Init(LPC_GPIO_PORTn_BASE(pGPIO, 3));
64 #endif
65 }
66 
67 /* Set Direction for a GPIO port */
68 void Chip_GPIO_SetDir(LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue, uint8_t out)
69 {
70 #if defined(CHIP_LPC1347)
71  if (out) {
72  pGPIO->DIR[portNum] |= bitValue;
73  }
74  else {
75  pGPIO->DIR[portNum] &= ~bitValue;
76  }
77 #else
78  IP_GPIO_SetDir(LPC_GPIO_PORTn_BASE(pGPIO, portNum), bitValue, (bool) out);
79 #endif
80 }