LPCOpen Platform  v1.03
LPCOpen Platform for NXP LPC Microcontrollers
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iocon_17xx_40xx.c
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1 /*
2  * @brief LPC17xx/40xx IOCON driver
3  *
4  * Copyright(C) NXP Semiconductors, 2013
5  * All rights reserved.
6  *
7  * Software that is described herein is for illustrative purposes only
8  * which provides customers with programming information regarding the
9  * LPC products. This software is supplied "AS IS" without any warranties of
10  * any kind, and NXP Semiconductors and its licensor disclaim any and
11  * all warranties, express or implied, including all implied warranties of
12  * merchantability, fitness for a particular purpose and non-infringement of
13  * intellectual property rights. NXP Semiconductors assumes no responsibility
14  * or liability for the use of the software, conveys no license or rights under any
15  * patent, copyright, mask work right, or any other intellectual property rights in
16  * or to any products. NXP Semiconductors reserves the right to make changes
17  * in the software without notification. NXP Semiconductors also makes no
18  * representation or warranty that such application will be suitable for the
19  * specified use without further testing or modification.
20  *
21  * Permission to use, copy, modify, and distribute this software and its
22  * documentation is hereby granted, under NXP Semiconductors' and its
23  * licensor's relevant copyrights in the software, without fee, provided that it
24  * is used in conjunction with NXP Semiconductors microcontrollers. This
25  * copyright, permission, and disclaimer notice must appear in all copies of
26  * this code.
27  */
28 
29 #include "chip.h"
30 
31 /*****************************************************************************
32  * Private types/enumerations/variables
33  ****************************************************************************/
34 
35 /*****************************************************************************
36  * Public types/enumerations/variables
37  ****************************************************************************/
38 
39 /*****************************************************************************
40  * Private functions
41  ****************************************************************************/
42 
43 /*****************************************************************************
44  * Public functions
45  ****************************************************************************/
46 
47 #if defined(CHIP_LPC175X_6X)
48 /* Setup pin modes and function */
49 void Chip_IOCON_PinMux(LPC_IOCON_T *pIOCON, uint8_t port, uint8_t pin, uint32_t mode, uint8_t func)
50 {
51  uint8_t reg, bitPos;
52  uint32_t temp;
53 
54  bitPos = IOCON_BIT_INDEX(pin);
55  reg = IOCON_REG_INDEX(port,pin);
56 
57  temp = pIOCON->PINSEL[reg] & ~(0x03UL << bitPos);
58  pIOCON->PINSEL[reg] = temp | (func << bitPos);
59 
60  temp = pIOCON->PINMODE[reg] & ~(0x03UL << bitPos);
61  pIOCON->PINMODE[reg] = temp | (mode << bitPos);
62 }
63 #endif /* defined(CHIP_LPC175X_6X) */