Marcelo Rebonatto / Mbed 2 deprecated PMED_Tempo

Versão do protegemed que calcula o tempo em ms da fuga, calcula o numero de onverflow (valores muito baixo) e underflow (valores muito altos). Além disso, calcula um valor médio a partir dos valores capturados e não apenas pela fft.

Dependencies:   EthernetInterface mbed-rtos mbed

Drivers/adc.c@0:c64e1194230b, 2014-07-09 (annotated)

Committer:
rebonatto
Date:
Wed Jul 09 21:16:23 2014 +0000
Revision:
0:c64e1194230b
Vers?o do Protegemed com calculo de tempo de fuga, overflow, underflow e novo valor m?dio (manual).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rebonatto 0:c64e1194230b 1 /*
rebonatto 0:c64e1194230b 2 * adc.c
rebonatto 0:c64e1194230b 3 *
rebonatto 0:c64e1194230b 4 * Created on: 02/07/2011
rebonatto 0:c64e1194230b 5 * Author: francisco
rebonatto 0:c64e1194230b 6 */
rebonatto 0:c64e1194230b 7
rebonatto 0:c64e1194230b 8 #include <LPC17xx.h>
rebonatto 0:c64e1194230b 9 #include "adc.h"
rebonatto 0:c64e1194230b 10
rebonatto 0:c64e1194230b 11 void init_adc(int adc_clk)
rebonatto 0:c64e1194230b 12 {
rebonatto 0:c64e1194230b 13 // Turn on power to ADC block
rebonatto 0:c64e1194230b 14 LPC_SC->PCONP |= PCADC;
rebonatto 0:c64e1194230b 15
rebonatto 0:c64e1194230b 16 // Turn on ADC peripheral clock
rebonatto 0:c64e1194230b 17 LPC_SC->PCLKSEL0 &= ~(3 << PCLK_ADC);
rebonatto 0:c64e1194230b 18 LPC_SC->PCLKSEL0 |= (ADC_CCLK << PCLK_ADC); //CLK/8
rebonatto 0:c64e1194230b 19
rebonatto 0:c64e1194230b 20 unsigned int clkdiv = (SystemCoreClock/1)/65;
rebonatto 0:c64e1194230b 21 clkdiv = clkdiv/adc_clk;
rebonatto 0:c64e1194230b 22
rebonatto 0:c64e1194230b 23 LPC_ADC->ADCR &= ~(ADC_OPERATIONAL|ADC_CLKDIV(255));
rebonatto 0:c64e1194230b 24 LPC_ADC->ADCR |= (ADC_OPERATIONAL|ADC_CLKDIV(clkdiv));
rebonatto 0:c64e1194230b 25
rebonatto 0:c64e1194230b 26 //NVIC_EnableIRQ(ADC_IRQn);
rebonatto 0:c64e1194230b 27 }
rebonatto 0:c64e1194230b 28
rebonatto 0:c64e1194230b 29 void setup_start(int mode,int edge)
rebonatto 0:c64e1194230b 30 {
rebonatto 0:c64e1194230b 31 LPC_ADC->ADCR |= mode;
rebonatto 0:c64e1194230b 32 }
rebonatto 0:c64e1194230b 33
rebonatto 0:c64e1194230b 34 void select_channels(int adc_ch)
rebonatto 0:c64e1194230b 35 {
rebonatto 0:c64e1194230b 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:c64e1194230b 37 LPC_ADC->ADCR |= adc_ch;
rebonatto 0:c64e1194230b 38
rebonatto 0:c64e1194230b 39 LPC_ADC->ADINTEN |= (1U<<8);//adc_ch;
rebonatto 0:c64e1194230b 40
rebonatto 0:c64e1194230b 41 if(adc_ch&ADC_CH_0)
rebonatto 0:c64e1194230b 42 {
rebonatto 0:c64e1194230b 43 LPC_PINCON->PINSEL1 |= 1U<<14;
rebonatto 0:c64e1194230b 44 LPC_PINCON->PINMODE1 |= 2U<<14;
rebonatto 0:c64e1194230b 45 }
rebonatto 0:c64e1194230b 46 if(adc_ch&ADC_CH_1)
rebonatto 0:c64e1194230b 47 {
rebonatto 0:c64e1194230b 48 LPC_PINCON->PINSEL1 |= 1U<<16;
rebonatto 0:c64e1194230b 49 LPC_PINCON->PINMODE1 |= 2U<<16;
rebonatto 0:c64e1194230b 50 }
rebonatto 0:c64e1194230b 51 if(adc_ch&ADC_CH_2)
rebonatto 0:c64e1194230b 52 {
rebonatto 0:c64e1194230b 53 LPC_PINCON->PINSEL1 |= 1U<<18;
rebonatto 0:c64e1194230b 54 LPC_PINCON->PINMODE1 |= 2U<<18;
rebonatto 0:c64e1194230b 55 }
rebonatto 0:c64e1194230b 56 if(adc_ch&ADC_CH_3)
rebonatto 0:c64e1194230b 57 {
rebonatto 0:c64e1194230b 58 LPC_PINCON->PINSEL1 |= 1U<<20;
rebonatto 0:c64e1194230b 59 LPC_PINCON->PINMODE1 |= 2U<<20;
rebonatto 0:c64e1194230b 60 }
rebonatto 0:c64e1194230b 61 if(adc_ch&ADC_CH_4)
rebonatto 0:c64e1194230b 62 {
rebonatto 0:c64e1194230b 63 LPC_PINCON->PINSEL3 |= 3U<<28;
rebonatto 0:c64e1194230b 64 LPC_PINCON->PINMODE3 |= 2U<<28;
rebonatto 0:c64e1194230b 65 }
rebonatto 0:c64e1194230b 66 if(adc_ch&ADC_CH_5)
rebonatto 0:c64e1194230b 67 {
rebonatto 0:c64e1194230b 68 LPC_PINCON->PINSEL3 |= 3U<<30;
rebonatto 0:c64e1194230b 69 LPC_PINCON->PINMODE3 |= 2U<<30;
rebonatto 0:c64e1194230b 70 }
rebonatto 0:c64e1194230b 71 if(adc_ch&ADC_CH_6)
rebonatto 0:c64e1194230b 72 {
rebonatto 0:c64e1194230b 73 LPC_PINCON->PINSEL0 |= 2U<<6;
rebonatto 0:c64e1194230b 74 LPC_PINCON->PINMODE0 |= 2U<<6;
rebonatto 0:c64e1194230b 75 }
rebonatto 0:c64e1194230b 76 if(adc_ch&ADC_CH_7)
rebonatto 0:c64e1194230b 77 {
rebonatto 0:c64e1194230b 78 LPC_PINCON->PINSEL0 |= 2U<<4;
rebonatto 0:c64e1194230b 79 LPC_PINCON->PINMODE0 |= 2U<<4;
rebonatto 0:c64e1194230b 80 }
rebonatto 0:c64e1194230b 81 }