23 lines
737 B
C++
23 lines
737 B
C++
#include "AP_BattMonitor_SMBus_Rotoye.h"
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#include <AP_HAL/AP_HAL.h>
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// Specific to Rotoye Batmon
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#define BATTMONITOR_SMBUS_TEMP_EXT 0x07
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// return the maximum of the internal and external temperature sensors
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void AP_BattMonitor_SMBus_Rotoye::read_temp(void) {
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uint16_t t_int, t_ext;
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/* Both internal and external values will always be sent by Batmon.
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If no external thermistor is used, a zero-value is sent. */
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if (read_word(BATTMONITOR_SMBUS_TEMP, t_int) &&
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read_word(BATTMONITOR_SMBUS_TEMP_EXT, t_ext)) {
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uint16_t t;
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_state.temperature_time = AP_HAL::millis();
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t = ((t_ext > t_int) ? t_ext : t_int);
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_state.temperature = KELVIN_TO_C(0.1f * (float)t);
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}
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}
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