foxBMS - Unit Tests  1.2.1
The foxBMS Unit Tests API Documentation
vishay_ntcle317e4103sba.h
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41 
42 /**
43  * @file vishay_ntcle317e4103sba.h
44  * @author foxBMS Team
45  * @date 2021-10-29 (date of creation)
46  * @updated 2021-11-08 (date of last update)
47  * @ingroup TEMPERATURE_SENSORS
48  * @prefix TS
49  *
50  * @brief Resistive divider used for measuring temperature
51  *
52  * V_supply
53  * --.--
54  * |
55  * +-.-+
56  * | |
57  * | | R_1
58  * | |
59  * +-.-+
60  * |
61  * .--- V_adc
62  * |
63  * +-.-+
64  * | |
65  * | | R_2
66  * | |
67  * +-.-+
68  * |
69  * --.--
70  * GND
71  */
72 
73 #ifndef FOXBMS__VISHAY_NTCLE317E4103SBA_H_
74 #define FOXBMS__VISHAY_NTCLE317E4103SBA_H_
75 
76 /*========== Includes =======================================================*/
77 #include "general.h"
78 
79 /*========== Macros and Definitions =========================================*/
80 /**
81  * Position of the NTC in the voltage resistor
82  * true: NTC is positioned above the voltage tap for the ADC voltage.
83  * This equals resistor R_1 in the above circuit diagram
84  *
85  * false: NTC is positioned below the voltage tap for the ADC voltage.
86  * This equals resistor R_2 in the above circuit diagram
87  */
88 #define TS_VISHAY_NTCLE317E4103SBA_POSITION_IN_RESISTOR_DIVIDER_IS_R_1 (false)
89 
90 /** Resistor divider supply voltage in volt */
91 #define TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V (3.0f)
92 
93 /**
94  * Resistance value of the other resistor (not the NTC) in the resistor
95  * divider in Ohm.
96  */
97 #define TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm (10000.0f)
98 
99 /*========== Extern Constant and Variable Declarations ======================*/
100 /**
101  * @brief returns temperature based on measured ADC voltage.
102  * @param adcVoltage_mV voltage in mV
103  * @return corresponding temperature in deci °C or INT16_MAX/INT16_MIN if
104  * NTC is shorted or got disconnected. The caller of this functions
105  * needs to check for these return values to prevent invalid data.
106  */
107 extern int16_t TS_Vis01GetTemperatureFromLut(uint16_t adcVoltage_mV);
108 
109 /**
110  * @brief returns temperature based on measured ADC voltage
111  * @param adcVoltage_mV voltage in mV
112  * @return corresponding temperature in deci °C
113  */
114 extern int16_t TS_Vis01GetTemperatureFromPolynomial(uint16_t adcVoltage_mV);
115 
116 /*========== Extern Function Prototypes =====================================*/
117 
118 /*========== Externalized Static Functions Prototypes (Unit Test) ===========*/
119 
120 #endif /* FOXBMS__VISHAY_NTCLE317E4103SBA_H_ */
General macros and definitions for the whole platform.
int16_t TS_Vis01GetTemperatureFromPolynomial(uint16_t adcVoltage_mV)
returns temperature based on measured ADC voltage
int16_t TS_Vis01GetTemperatureFromLut(uint16_t adcVoltage_mV)
returns temperature based on measured ADC voltage.