Damien Frost / Mbed 2 deprecated BatteryModelTester

Skeleton program for Federico's 4YP project.

Dependencies:   WebSocketClient WiflyInterface mbed messages

Fork of IoT_Ex by Damien Frost

source/ADC.cpp@6:424e225d2a91, 2016-10-06 (annotated)

Committer:
defrost
Date:
Thu Oct 06 08:04:34 2016 +0000
Revision:
6:424e225d2a91
Parent:
5:0c7d131e6089 
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defrost 6:424e225d2a91 1 /**
defrost 6:424e225d2a91 2 * @author Damien Frost
defrost 6:424e225d2a91 3 *
defrost 6:424e225d2a91 4 * @section LICENSE
defrost 6:424e225d2a91 5 *
defrost 6:424e225d2a91 6 * Copyright (c) 2016 Damien Frost
defrost 6:424e225d2a91 7 *
defrost 6:424e225d2a91 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
defrost 6:424e225d2a91 9 * of this software and associated documentation files (the "Software"), to deal
defrost 6:424e225d2a91 10 * in the Software without restriction, including without limitation the rights
defrost 6:424e225d2a91 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
defrost 6:424e225d2a91 12 * copies of the Software, and to permit persons to whom the Software is
defrost 6:424e225d2a91 13 * furnished to do so, subject to the following conditions:
defrost 6:424e225d2a91 14 *
defrost 6:424e225d2a91 15 * The above copyright notice and this permission notice shall be included in
defrost 6:424e225d2a91 16 * all copies or substantial portions of the Software.
defrost 6:424e225d2a91 17 *
defrost 6:424e225d2a91 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
defrost 6:424e225d2a91 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
defrost 6:424e225d2a91 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
defrost 6:424e225d2a91 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
defrost 6:424e225d2a91 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
defrost 6:424e225d2a91 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
defrost 6:424e225d2a91 24 * THE SOFTWARE.
defrost 6:424e225d2a91 25 *
defrost 6:424e225d2a91 26 * @file "ADC.cpp"
defrost 6:424e225d2a91 27 *
defrost 6:424e225d2a91 28 * @section DESCRIPTION
defrost 6:424e225d2a91 29 * Configuration of the ADC for the IoT example.
defrost 6:424e225d2a91 30 *
defrost 6:424e225d2a91 31 */
defrost 1:4403f2ed1c1f 32
defrost 1:4403f2ed1c1f 33 #include "ADC.h"
defrost 1:4403f2ed1c1f 34 #include "globals.h"
defrost 1:4403f2ed1c1f 35 #include "mbed.h"
defrost 1:4403f2ed1c1f 36
defrost 1:4403f2ed1c1f 37
defrost 1:4403f2ed1c1f 38 //#define DEBUG
defrost 1:4403f2ed1c1f 39 #define INFOMESSAGES
defrost 1:4403f2ed1c1f 40 #define WARNMESSAGES
defrost 1:4403f2ed1c1f 41 #define ERRMESSAGES
defrost 1:4403f2ed1c1f 42 #define FUNCNAME "ADC"
defrost 1:4403f2ed1c1f 43 #include "messages.h"
defrost 1:4403f2ed1c1f 44
defrost 1:4403f2ed1c1f 45
defrost 1:4403f2ed1c1f 46 void ConfigureADC(void){
defrost 1:4403f2ed1c1f 47
defrost 1:4403f2ed1c1f 48 unsigned int value;
defrost 1:4403f2ed1c1f 49
defrost 1:4403f2ed1c1f 50 // ensure power is turned on
defrost 1:4403f2ed1c1f 51 // Grabbed from lines 54-57 of analogin_api.c
defrost 1:4403f2ed1c1f 52 // This turns on the clock to Ports A, B, and C
defrost 1:4403f2ed1c1f 53 RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN;
defrost 1:4403f2ed1c1f 54 // This turns on the clock to the ADC:
defrost 1:4403f2ed1c1f 55 RCC->APB2ENR |= RCC_APB2ENR_ADC1EN;
defrost 1:4403f2ed1c1f 56
defrost 1:4403f2ed1c1f 57
defrost 1:4403f2ed1c1f 58 // Turn on the ADC:
defrost 1:4403f2ed1c1f 59 value = ADC_CR2_ADON;
defrost 1:4403f2ed1c1f 60 ADC1->CR2 = value;
defrost 1:4403f2ed1c1f 61 wait_us(100);
defrost 1:4403f2ed1c1f 62
defrost 2:7abdaa5a9209 63 // Set the EOC flag at the end of every regular conversion:
defrost 2:7abdaa5a9209 64 ADC1->CR2 |= ADC_CR2_EOCS;
defrost 2:7abdaa5a9209 65
defrost 1:4403f2ed1c1f 66 // Turn on the internal temperature sensor:
defrost 1:4403f2ed1c1f 67 ADC->CCR |= ADC_CCR_TSVREFE;
defrost 1:4403f2ed1c1f 68
defrost 2:7abdaa5a9209 69 // Set the first (and only channel) to convert to CH16, the internal temperature sensor:
defrost 2:7abdaa5a9209 70 ADC1->SQR3 |= ADC_SQR3_SQ1_4;
defrost 1:4403f2ed1c1f 71
defrost 1:4403f2ed1c1f 72 // Set the sample numbers (making this bigger samples more slowly):
defrost 2:7abdaa5a9209 73 ADC1->SMPR2 = ADC_SMPR1_SMP16_1 | ADC_SMPR1_SMP16_2; // Set for 144 ADC clock cycles
defrost 1:4403f2ed1c1f 74
defrost 1:4403f2ed1c1f 75
defrost 1:4403f2ed1c1f 76 INFO("ADC configuration complete!");
defrost 5:0c7d131e6089 77 DBG("ADC Registers:");
defrost 5:0c7d131e6089 78 DBG("The SR Register reads: %d", ADC1->SR);
defrost 5:0c7d131e6089 79 DBG("The CR1 Register reads: %d", ADC1->CR1);
defrost 5:0c7d131e6089 80 DBG("The CR2 Register reads: %d", ADC1->CR2);
defrost 5:0c7d131e6089 81 DBG("The JSQR Register reads: %d", ADC1->JSQR);
defrost 1:4403f2ed1c1f 82
defrost 1:4403f2ed1c1f 83 return;
defrost 1:4403f2ed1c1f 84 }