foxBMS - Unit Tests  1.4.1
The foxBMS Unit Tests API Documentation
adc.c
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41 
42 /**
43  * @file adc.c
44  * @author foxBMS Team
45  * @date 2019-01-07 (date of creation)
46  * @updated 2022-10-27 (date of last update)
47  * @version v1.4.1
48  * @ingroup DRIVERS
49  * @prefix ADC
50  *
51  * @brief Driver for the ADC module.
52  *
53  */
54 
55 /*========== Includes =======================================================*/
56 #include "adc.h"
57 
58 #include "database.h"
59 
60 /*========== Macros and Definitions =========================================*/
61 
62 /*========== Static Constant and Variable Definitions =======================*/
63 
64 /**
65  * @brief describes the current state of the conversion
66  * @details This variable is used as a state-variable for switching through the
67  * steps of a conversion.
68  */
70 
72 
74 
75 /*========== Extern Constant and Variable Definitions =======================*/
76 
77 /*========== Static Function Prototypes =====================================*/
78 
79 /**
80  * @brief converts reading from ADC to a voltage in mV.
81  * @param adcCounts digital value read by ADC
82  * @return voltage in mV
83  */
84 static float ADC_ConvertVoltage(uint16_t adcCounts);
85 
86 /*========== Static Function Implementations ================================*/
87 
88 static float ADC_ConvertVoltage(uint16_t adcCounts) {
89  /* AXIVION Routine Generic-MissingParameterAssert: adcValue_mV: parameter accepts whole range */
90 
91  /** For details to equation see Equation 28 in Technical Reference Manual SPNU563A - March 2018 page 852 */
92  float result_mV = (((adcCounts + ADC_CONV_OFFSET) * (ADC_VREFHIGH_mV - ADC_VREFLOW_mV)) / ADC_CONV_FACTOR_12BIT) +
94 
95  return result_mV;
96 }
97 
98 /*========== Extern Function Implementations ================================*/
99 
100 extern void ADC_Control(void) {
101  bool conversionFinished = true;
102 
103  switch (adc_conversionState) {
105  adcStartConversion(adcREG1, adcGROUP1);
107  break;
108 
110  conversionFinished = true;
111  if (ADC_CONVERSION_ENDDBIT != adcIsConversionComplete(adcREG1, adcGROUP1)) {
112  conversionFinished = false;
113  }
114  if (conversionFinished == true) {
116  }
117  break;
118 
119  /* Start initialization procedure, data sheet figure 106 page 79 */
121  adcGetData(adcREG1, adcGROUP1, &adc_adc1RawVoltages[0]);
122  for (uint8_t i = 0u; i < MCU_ADC1_MAX_NR_CHANNELS; i++) {
124  }
127  break;
128 
129  default:
130  /* invalid state */
132  break;
133  }
134 }
135 
136 /*========== Externalized Static Function Implementations (Unit Test) =======*/
static ADC_STATE_e adc_conversionState
describes the current state of the conversion
Definition: adc.c:69
void ADC_Control(void)
controls ADC measurement sequence.
Definition: adc.c:100
static adcData_t adc_adc1RawVoltages[MCU_ADC1_MAX_NR_CHANNELS]
Definition: adc.c:71
static DATA_BLOCK_ADC_VOLTAGE_s adc_adc1Voltages
Definition: adc.c:73
static float ADC_ConvertVoltage(uint16_t adcCounts)
converts reading from ADC to a voltage in mV.
Definition: adc.c:88
Headers for the driver for the ADC module.
#define ADC_VREFLOW_mV
Definition: adc.h:70
ADC_STATE_e
Definition: adc.h:84
@ ADC_WAIT_CONVERSION_FINISHED
Definition: adc.h:86
@ ADC_START_CONVERSION
Definition: adc.h:85
@ ADC_CONVERSION_FINISHED
Definition: adc.h:87
#define ADC_VREFHIGH_mV
Definition: adc.h:68
#define ADC_CONV_OFFSET
Definition: adc.h:76
#define ADC_CONVERSION_ENDDBIT
Definition: adc.h:79
#define ADC_CONV_FACTOR_12BIT
Definition: adc.h:72
Database module header.
#define DATA_WRITE_DATA(...)
Definition: database.h:93
@ DATA_BLOCK_ID_ADC_VOLTAGE
Definition: database_cfg.h:107
#define FAS_ASSERT(x)
Assertion macro that asserts that x is true.
Definition: fassert.h:248
#define FAS_TRAP
Define that evaluates to essential boolean false thus tripping an assert.
Definition: fassert.h:126
#define MCU_ADC1_MAX_NR_CHANNELS
maximum number of channels measured by the ADC1
Definition: mcu.h:76
DATA_BLOCK_HEADER_s header
Definition: database_cfg.h:585
float adc1ConvertedVoltages_mV[MCU_ADC1_MAX_NR_CHANNELS]
Definition: database_cfg.h:586
DATA_BLOCK_ID_e uniqueId
Definition: database_cfg.h:119