Marcelo Rebonatto / Mbed 2 deprecated PM_COPIA

Versão atual 13-12-2013.

Dependencies:   EthernetInterface mbed-rtos mbed

Drivers/adc.c@0:65c41a68b49a, 2013-12-13 (annotated)

Committer:
rebonatto
Date:
Fri Dec 13 11:42:59 2013 +0000
Revision:
0:65c41a68b49a
Versao atual 13-12-2013.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rebonatto 0:65c41a68b49a 1 /*
rebonatto 0:65c41a68b49a 2 * adc.c
rebonatto 0:65c41a68b49a 3 *
rebonatto 0:65c41a68b49a 4 * Created on: 02/07/2011
rebonatto 0:65c41a68b49a 5 * Author: francisco
rebonatto 0:65c41a68b49a 6 */
rebonatto 0:65c41a68b49a 7
rebonatto 0:65c41a68b49a 8 #include <LPC17xx.h>
rebonatto 0:65c41a68b49a 9 #include "adc.h"
rebonatto 0:65c41a68b49a 10
rebonatto 0:65c41a68b49a 11 void init_adc(int adc_clk)
rebonatto 0:65c41a68b49a 12 {
rebonatto 0:65c41a68b49a 13 // Turn on power to ADC block
rebonatto 0:65c41a68b49a 14 LPC_SC->PCONP |= PCADC;
rebonatto 0:65c41a68b49a 15
rebonatto 0:65c41a68b49a 16 // Turn on ADC peripheral clock
rebonatto 0:65c41a68b49a 17 LPC_SC->PCLKSEL0 &= ~(3 << PCLK_ADC);
rebonatto 0:65c41a68b49a 18 LPC_SC->PCLKSEL0 |= (ADC_CCLK << PCLK_ADC); //CLK/8
rebonatto 0:65c41a68b49a 19
rebonatto 0:65c41a68b49a 20 unsigned int clkdiv = (SystemCoreClock/1)/65;
rebonatto 0:65c41a68b49a 21 clkdiv = clkdiv/adc_clk;
rebonatto 0:65c41a68b49a 22
rebonatto 0:65c41a68b49a 23 LPC_ADC->ADCR &= ~(ADC_OPERATIONAL|ADC_CLKDIV(255));
rebonatto 0:65c41a68b49a 24 LPC_ADC->ADCR |= (ADC_OPERATIONAL|ADC_CLKDIV(clkdiv));
rebonatto 0:65c41a68b49a 25
rebonatto 0:65c41a68b49a 26 //NVIC_EnableIRQ(ADC_IRQn);
rebonatto 0:65c41a68b49a 27 }
rebonatto 0:65c41a68b49a 28
rebonatto 0:65c41a68b49a 29 void setup_start(int mode,int edge)
rebonatto 0:65c41a68b49a 30 {
rebonatto 0:65c41a68b49a 31 LPC_ADC->ADCR |= mode;
rebonatto 0:65c41a68b49a 32 }
rebonatto 0:65c41a68b49a 33
rebonatto 0:65c41a68b49a 34 void select_channels(int adc_ch)
rebonatto 0:65c41a68b49a 35 {
rebonatto 0:65c41a68b49a 36 LPC_ADC->ADCR &= ~(ADC_CH_0|ADC_CH_1|ADC_CH_2|ADC_CH_3|ADC_CH_4|ADC_CH_5|ADC_CH_6|ADC_CH_7);
rebonatto 0:65c41a68b49a 37 LPC_ADC->ADCR |= adc_ch;
rebonatto 0:65c41a68b49a 38
rebonatto 0:65c41a68b49a 39 LPC_ADC->ADINTEN |= (1U<<8);//adc_ch;
rebonatto 0:65c41a68b49a 40
rebonatto 0:65c41a68b49a 41 if(adc_ch&ADC_CH_0)
rebonatto 0:65c41a68b49a 42 {
rebonatto 0:65c41a68b49a 43 LPC_PINCON->PINSEL1 |= 1U<<14;
rebonatto 0:65c41a68b49a 44 LPC_PINCON->PINMODE1 |= 2U<<14;
rebonatto 0:65c41a68b49a 45 }
rebonatto 0:65c41a68b49a 46 if(adc_ch&ADC_CH_1)
rebonatto 0:65c41a68b49a 47 {
rebonatto 0:65c41a68b49a 48 LPC_PINCON->PINSEL1 |= 1U<<16;
rebonatto 0:65c41a68b49a 49 LPC_PINCON->PINMODE1 |= 2U<<16;
rebonatto 0:65c41a68b49a 50 }
rebonatto 0:65c41a68b49a 51 if(adc_ch&ADC_CH_2)
rebonatto 0:65c41a68b49a 52 {
rebonatto 0:65c41a68b49a 53 LPC_PINCON->PINSEL1 |= 1U<<18;
rebonatto 0:65c41a68b49a 54 LPC_PINCON->PINMODE1 |= 2U<<18;
rebonatto 0:65c41a68b49a 55 }
rebonatto 0:65c41a68b49a 56 if(adc_ch&ADC_CH_3)
rebonatto 0:65c41a68b49a 57 {
rebonatto 0:65c41a68b49a 58 LPC_PINCON->PINSEL1 |= 1U<<20;
rebonatto 0:65c41a68b49a 59 LPC_PINCON->PINMODE1 |= 2U<<20;
rebonatto 0:65c41a68b49a 60 }
rebonatto 0:65c41a68b49a 61 if(adc_ch&ADC_CH_4)
rebonatto 0:65c41a68b49a 62 {
rebonatto 0:65c41a68b49a 63 LPC_PINCON->PINSEL3 |= 3U<<28;
rebonatto 0:65c41a68b49a 64 LPC_PINCON->PINMODE3 |= 2U<<28;
rebonatto 0:65c41a68b49a 65 }
rebonatto 0:65c41a68b49a 66 if(adc_ch&ADC_CH_5)
rebonatto 0:65c41a68b49a 67 {
rebonatto 0:65c41a68b49a 68 LPC_PINCON->PINSEL3 |= 3U<<30;
rebonatto 0:65c41a68b49a 69 LPC_PINCON->PINMODE3 |= 2U<<30;
rebonatto 0:65c41a68b49a 70 }
rebonatto 0:65c41a68b49a 71 if(adc_ch&ADC_CH_6)
rebonatto 0:65c41a68b49a 72 {
rebonatto 0:65c41a68b49a 73 LPC_PINCON->PINSEL0 |= 2U<<6;
rebonatto 0:65c41a68b49a 74 LPC_PINCON->PINMODE0 |= 2U<<6;
rebonatto 0:65c41a68b49a 75 }
rebonatto 0:65c41a68b49a 76 if(adc_ch&ADC_CH_7)
rebonatto 0:65c41a68b49a 77 {
rebonatto 0:65c41a68b49a 78 LPC_PINCON->PINSEL0 |= 2U<<4;
rebonatto 0:65c41a68b49a 79 LPC_PINCON->PINMODE0 |= 2U<<4;
rebonatto 0:65c41a68b49a 80 }
rebonatto 0:65c41a68b49a 81 }