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Code Issues Releases Activity

OP-295 Modules/SystemMod: Get the internal CPU temperature sensor and store in

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system stats when available

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2511 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
peabody124 2011-01-21 17:18:24 +00:00 committed by peabody124
parent 65e02eeb25
commit bcdd87689a
2 changed files with 8 additions and 0 deletions
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7
flight/Modules/System/systemmod.c
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@ -266,6 +266,13 @@ static void updateStats()
stats.CPULoad =
100 - (uint8_t) round(100.0 * ((float)idleCounter / (float)(SYSTEM_UPDATE_PERIOD_MS / 1000)) / (float)IDLE_COUNTS_PER_SEC_AT_NO_LOAD);
idleCounterClear = 1;
#if defined(PIOS_INCLUDE_ADC) && defined(PIOS_ADC_USE_TEMP_SENSOR)
float temp_voltage = 3.3 * PIOS_ADC_PinGet(0) / ((1 << 12) - 1);
const float STM32_TEMP_V25 = 1.43; /* V */
const float STM32_TEMP_AVG_SLOPE = 4.3; /* mV/C */
stats.CPUTemp = (temp_voltage-STM32_TEMP_V25) * 1000 / STM32_TEMP_AVG_SLOPE + 25;
#endif
SystemStatsSet(&stats);
}

1
ground/src/shared/uavobjectdefinition/systemstats.xml
View File

@ -4,6 +4,7 @@
<field name="FlightTime" units="ms" type="uint32" elements="1"/>
<field name="HeapRemaining" units="bytes" type="uint16" elements="1"/>
<field name="CPULoad" units="%" type="uint8" elements="1"/>
<field name="CPUTemp" units="C" type="uint8" elements="1"/>
<access gcs="readwrite" flight="readwrite"/>
<telemetrygcs acked="false" updatemode="manual" period="0"/>
<telemetryflight acked="false" updatemode="periodic" period="1000"/>