/*
* @brief LPC11xx ADC example
*
* @note
* Copyright(C) NXP Semiconductors, 2012
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "board.h"
#include <stdio.h>
#if !defined(CHIP_LPC1125)
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
static ADC_CLOCK_SETUP_T ADCSetup;
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
static void Init_ADC_PinMux(void)
{
#if (defined(BOARD_NXP_XPRESSO_11U14) || defined(BOARD_NGX_BLUEBOARD_11U24))
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 11, FUNC2);
#elif defined(BOARD_NXP_XPRESSO_11C24)
Chip_IOCON_PinMuxSet(LPC_IOCON, IOCON_PIO0_11, FUNC2);
#else
#error "Pin muxing for ADC not configured"
#endif
}
/*****************************************************************************
* Public functions
****************************************************************************/
/**
* @briefmain routine for ADC example
* @returnFunction should not exit
*/
int main(void)
{
uint16_t dataADC;
int j;
SystemCoreClockUpdate();
Board_Init();
Init_ADC_PinMux();
/* ADC Init */
Chip_ADC_Init(LPC_ADC, &ADCSetup);
Chip_ADC_EnableChannel(LPC_ADC, ADC_CH1, ENABLE);
while (1) {
/* Start A/D conversion */
Chip_ADC_SetStartMode(LPC_ADC, ADC_START_NOW, ADC_TRIGGERMODE_RISING);
/* Waiting for A/D conversion complete */
while (Chip_ADC_ReadStatus(LPC_ADC, ADC_CH1, ADC_DR_DONE_STAT) != SET) {}
/* Read ADC value */
Chip_ADC_ReadValue(LPC_ADC, ADC_CH1, &dataADC);
/* Print ADC value */
DEBUGOUT("ADC value port 1 is 0x%x \r\n ", dataADC);
/* Delay */
j = 5000000;
while (j--) {}
}
/* Should not run to here */
return 0;
}
#endif /* !defined(CHIP_LPC1125) */ |
