| LPCOpen Platform v1.03 LPCOpen Platform for NXP LPC Microcontrollers

- Main Page
- Modules
- Data Structures
- Files
- Related Pages

- File List
- Globals

All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
board_nxp_xpresso_11c24.c
Go to the documentation of this file.
1 /*
2 * @brief NXP XPRESSO 11C24 board file
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 "board.h"
33
38 /*****************************************************************************
39 * Private types/enumerations/variables
40 ****************************************************************************/
41
42 /*****************************************************************************
43 * Public types/enumerations/variables
44 ****************************************************************************/
45
46 /* System Clock Frequency (Core Clock) */
47 uint32_t SystemCoreClock;
48
49 /*****************************************************************************
50 * Private functions
51 ****************************************************************************/
52
53 /*****************************************************************************
54 * Public functions
55 ****************************************************************************/
56
57 void Board_UART_Init(void)
58 {
59 /* Pin Muxing has already been done during the system init */
60 }
61
62 /* Sends a character on the UART */
63 void Board_UARTPutChar(char ch)
64 {
65 #if defined(DEBUG_ENABLE)
66 /* Wait for space in FIFO */
67 while ((IP_UART_ReadLineStatus(DEBUG_UART) & UART_LSR_THRE) == 0);
68 Chip_UART_SendByte(DEBUG_UART, (uint8_t) ch);
69 #endif
70 }
71
72 /* Gets a character from the UART, returns EOF if no character is ready */
73 int Board_UARTGetChar(void)
74 {
75 #if defined(DEBUG_ENABLE)
76 if (Chip_UART_ReadLineStatus(DEBUG_UART) & UART_LSR_RDR) {
77 return (int) Chip_UART_ReadByte(DEBUG_UART);
78 }
79 #endif
80 return EOF;
81 }
82
83 /* Outputs a string on the debug UART */
84 void Board_UARTPutSTR(char *str)
85 {
86 #if defined(DEBUG_ENABLE)
87 while (*str != '\0') {
88 Board_UARTPutChar(*str++);
89 }
90 #endif
91 }
92
93 /* Initialize debug output via UART for board */
94 void Board_Debug_Init(void)
95 {
96 #if defined(DEBUG_ENABLE)
97 Board_UART_Init();
98
99 /* Setup UART for 115.2K8N1 */
100 Chip_UART_Init(LPC_USART);
101 Chip_UART_SetBaud(LPC_USART, 115200);
102 Chip_UART_ConfigData(LPC_USART, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
103 Chip_UART_SetupFIFOS(LPC_USART, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
104 Chip_UART_TXEnable(LPC_USART);
105 #endif
106 }
107
108 /* Initializes board LED(s) */
109 static void Board_LED_Init(void)
110 {
111 /* Set the PIO_7 as output */
112 Chip_GPIO_WriteDirBit(LPC_GPIO_PORT, 0, 7, true);
113 }
114
115 /* Sets the state of a board LED to on or off */
116 void Board_LED_Set(uint8_t LEDNumber, bool On)
117 {
118 if (LEDNumber == 0)
119 Chip_GPIO_WritePortBit(LPC_GPIO_PORT, 0, 7, On);
120 }
121
122 /* Returns the current state of a board LED */
123 bool Board_LED_Test(uint8_t LEDNumber)
124 {
125 return Chip_GPIO_ReadPortBit(LPC_GPIO_PORT, 0, 7);
126 }
127
128 /* Update system core clock rate, should be called if the system has
129 a clock rate change */
130 void SystemCoreClockUpdate(void)
131 {
132 /* CPU core speed */
133 SystemCoreClock = Chip_Clock_GetSystemClockRate();
134 }
135
136 /* Set up and initialize all required blocks and functions related to the
137 board hardware */
138 void Board_Init(void)
139 {
140 /* Sets up DEBUG UART */
141 DEBUGINIT();
142
143 /* Updates SystemCoreClock global var with current clock speed */
144 SystemCoreClockUpdate();
145
146 /* Initialize GPIO */
147 Chip_GPIO_Init(LPC_GPIO_PORT);
148
149 /* Initialize LEDs */
150 Board_LED_Init();
151 }
152
153 void Board_SSP_Init(void)
154 {
155 Chip_IOCON_PinLocSel(LPC_IOCON, IOCON_SCKLOC_PIO2_11);
156 }
157
158 /* Configure pin for ADC channel 0 */
159 void Board_ADC_Init()
160 {
161 Chip_IOCON_PinMuxSet(LPC_IOCON, IOCON_PIO0_11, 0x2);
162 }
163