Federico Ferrari
/
BatteryModelTester
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Dependencies: WebSocketClient WiflyInterface mbed messages
Fork of
BatteryModelTester
by 
Damien Frost
source/ADC.cpp@1:4403f2ed1c1f, 2016-10-04 (annotated)
- Committer:
- defrost
- Date:
- Tue Oct 04 13:19:19 2016 +0000
- Revision:
- 1:4403f2ed1c1f
- Child:
- 2:7abdaa5a9209
- Temperature sensor with injected channel conversion
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| defrost | 1:4403f2ed1c1f | 1 | |
| defrost | 1:4403f2ed1c1f | 2 | #include "ADC.h" |
| defrost | 1:4403f2ed1c1f | 3 | #include "globals.h" |
| defrost | 1:4403f2ed1c1f | 4 | #include "mbed.h" |
| defrost | 1:4403f2ed1c1f | 5 | |
| defrost | 1:4403f2ed1c1f | 6 | |
| defrost | 1:4403f2ed1c1f | 7 | //#define DEBUG |
| defrost | 1:4403f2ed1c1f | 8 | #define INFOMESSAGES |
| defrost | 1:4403f2ed1c1f | 9 | #define WARNMESSAGES |
| defrost | 1:4403f2ed1c1f | 10 | #define ERRMESSAGES |
| defrost | 1:4403f2ed1c1f | 11 | #define FUNCNAME "ADC" |
| defrost | 1:4403f2ed1c1f | 12 | #include "messages.h" |
| defrost | 1:4403f2ed1c1f | 13 | |
| defrost | 1:4403f2ed1c1f | 14 | |
| defrost | 1:4403f2ed1c1f | 15 | void ConfigureADC(void){ |
| defrost | 1:4403f2ed1c1f | 16 | |
| defrost | 1:4403f2ed1c1f | 17 | unsigned int value; |
| defrost | 1:4403f2ed1c1f | 18 | |
| defrost | 1:4403f2ed1c1f | 19 | // ensure power is turned on |
| defrost | 1:4403f2ed1c1f | 20 | // Grabbed from lines 54-57 of analogin_api.c |
| defrost | 1:4403f2ed1c1f | 21 | // This turns on the clock to Ports A, B, and C |
| defrost | 1:4403f2ed1c1f | 22 | RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOCEN; |
| defrost | 1:4403f2ed1c1f | 23 | // This turns on the clock to the ADC: |
| defrost | 1:4403f2ed1c1f | 24 | RCC->APB2ENR |= RCC_APB2ENR_ADC1EN; |
| defrost | 1:4403f2ed1c1f | 25 | |
| defrost | 1:4403f2ed1c1f | 26 | |
| defrost | 1:4403f2ed1c1f | 27 | // Turn on the ADC: |
| defrost | 1:4403f2ed1c1f | 28 | value = ADC_CR2_ADON; |
| defrost | 1:4403f2ed1c1f | 29 | ADC1->CR2 = value; |
| defrost | 1:4403f2ed1c1f | 30 | wait_us(100); |
| defrost | 1:4403f2ed1c1f | 31 | |
| defrost | 1:4403f2ed1c1f | 32 | // Turn on the internal temperature sensor: |
| defrost | 1:4403f2ed1c1f | 33 | ADC->CCR |= ADC_CCR_TSVREFE; |
| defrost | 1:4403f2ed1c1f | 34 | |
| defrost | 1:4403f2ed1c1f | 35 | // *** Control Register 1: CR1 *** |
| defrost | 1:4403f2ed1c1f | 36 | value = 0; |
| defrost | 1:4403f2ed1c1f | 37 | // [8] Set the SCAN Mode bit, to convert all registers when trigered: |
| defrost | 1:4403f2ed1c1f | 38 | value |= ADC_CR1_SCAN; |
| defrost | 1:4403f2ed1c1f | 39 | // [5] Set the JEOCIE bit, to trigger an interrupt when conversion ends. |
| defrost | 1:4403f2ed1c1f | 40 | value |= ADC_CR1_JEOCIE; |
| defrost | 1:4403f2ed1c1f | 41 | // Set the register: |
| defrost | 1:4403f2ed1c1f | 42 | ADC1->CR1 = value; |
| defrost | 1:4403f2ed1c1f | 43 | |
| defrost | 1:4403f2ed1c1f | 44 | // *** Control Register 2: CR2 *** |
| defrost | 1:4403f2ed1c1f | 45 | value = 0; |
| defrost | 1:4403f2ed1c1f | 46 | // [21:20] Set to 1, External trigger of injected channels triggered by positive edge. |
| defrost | 1:4403f2ed1c1f | 47 | value |= ADC_CR2_JEXTEN_0; |
| defrost | 1:4403f2ed1c1f | 48 | // Select the TIM1 TRGO and the external trigger: |
| defrost | 1:4403f2ed1c1f | 49 | value |= ADC_CR2_JEXTSEL_0; |
| defrost | 1:4403f2ed1c1f | 50 | // Set the register: |
| defrost | 1:4403f2ed1c1f | 51 | ADC1->CR2 |= value; |
| defrost | 1:4403f2ed1c1f | 52 | |
| defrost | 1:4403f2ed1c1f | 53 | // *** ADC injected sequence register: JSQR *** |
| defrost | 1:4403f2ed1c1f | 54 | value = 0; |
| defrost | 1:4403f2ed1c1f | 55 | // [21:20] JL bits, set to 0 for 1 total conversions to take place |
| defrost | 1:4403f2ed1c1f | 56 | // |
| defrost | 1:4403f2ed1c1f | 57 | // [19:15] Convert CH16 first: |
| defrost | 1:4403f2ed1c1f | 58 | value |= ADC_JSQR_JSQ1_4; |
| defrost | 1:4403f2ed1c1f | 59 | // Save the register: |
| defrost | 1:4403f2ed1c1f | 60 | ADC1->JSQR = value; |
| defrost | 1:4403f2ed1c1f | 61 | |
| defrost | 1:4403f2ed1c1f | 62 | // Set the sample numbers (making this bigger samples more slowly): |
| defrost | 1:4403f2ed1c1f | 63 | ADC1->SMPR2 = ADC_SMPR2_SMP1_1 | ADC_SMPR2_SMP1_2; |
| defrost | 1:4403f2ed1c1f | 64 | |
| defrost | 1:4403f2ed1c1f | 65 | |
| defrost | 1:4403f2ed1c1f | 66 | INFO("ADC configuration complete!"); |
| defrost | 1:4403f2ed1c1f | 67 | DBG("ADC Registers:\n\r"); |
| defrost | 1:4403f2ed1c1f | 68 | DBG("The SR Register reads: %d\n\r", ADC1->SR); |
| defrost | 1:4403f2ed1c1f | 69 | DBG("The CR1 Register reads: %d\n\r", ADC1->CR1); |
| defrost | 1:4403f2ed1c1f | 70 | DBG("The CR2 Register reads: %d\n\r", ADC1->CR2); |
| defrost | 1:4403f2ed1c1f | 71 | DBG("The JSQR Register reads: %d\n\r", ADC1->JSQR); |
| defrost | 1:4403f2ed1c1f | 72 | |
| defrost | 1:4403f2ed1c1f | 73 | return; |
| defrost | 1:4403f2ed1c1f | 74 | } |