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Listing 4
System hardware definition file
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/* Analog to Digital Hardware Parameters */
#define A2D_VOLTAGE_RANGE_MAX (5) /* VOLTS */
#define A2D_VOLTAGE_RANGE_MIN (0) /* VOLTS */
#define A2D_RESOLUTION (1024) /* 10 BITS */
/* Sensor Hardware Parameters */
#define SENSOR_ZERO_VOLTAGE (3.0) /* VOLTS */
#define SENSOR_ZERO_POINT (((SENSOR_ZERO_VOLTAGE/(A2D_VOLTAGE_
RANGE_MAX - A2D_VOLTAGE _RANGE_MIN))*
(A2D_RESOLUTION))
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