Add code for RF temperature sensor (#334)

Sts1CobcSw/Hal/IoNames.hpp

@@ -64,7 +64,6 @@ inline constexpr auto rfGpio0Pin = pc6;
 inline constexpr auto rfGpio1Pin = pc8;
 inline constexpr auto rfPaEnablePin = pc9;
 #if HW_VERSION >= 27
-inline constexpr auto rfTmpPin = pc0;
     #if HW_VERSION >= 30
 inline constexpr auto rfLatchupDisablePin1 = pa0;
 inline constexpr auto rfLatchupDisablePin2 = pa1;

Sts1CobcSw/Periphery/CMakeLists.txt

@@ -5,7 +5,10 @@ target_link_libraries(
 )
 
 if(CMAKE_SYSTEM_NAME STREQUAL Generic)
-    target_sources(Sts1CobcSw_Periphery PRIVATE Eps.cpp Flash.cpp Fram.cpp Rf.cpp Spis.cpp)
+    target_sources(
+        Sts1CobcSw_Periphery PRIVATE Eps.cpp Flash.cpp Fram.cpp Rf.cpp Spis.cpp
+                                     TemperatureSensor.cpp
+    )
 else()
     target_sources(Sts1CobcSw_Periphery PRIVATE FlashMock.cpp FramMock.cpp SpiMocks.cpp)
 endif()

Sts1CobcSw/Periphery/TemperatureSensor.cpp

@@ -0,0 +1,36 @@
+//! @file
+//! @brief "Driver" for the temperature sensor TMP36xS
+
+
+#include <Sts1CobcSw/Periphery/TemperatureSensor.hpp>
+
+#include <rodos_no_using_namespace.h>
+
+
+namespace sts1cobcsw::rftemperaturesensor
+{
+// RF_TMP is read on pin PC0 on internal ADC1
+auto adc = RODOS::HAL_ADC(RODOS::ADC_IDX1);
+constexpr auto channel = RODOS::ADC_CH_010;
+
+
+auto Initialize() -> void
+{
+    adc.init(channel);
+    const int32_t bitResolution = 12;  // 3.3 V / 2^12 bits / (10 mV/°C) = 0.0806 °C/bit
+    adc.config(RODOS::ADC_PARAMETER_RESOLUTION, bitResolution);
+}
+
+
+auto Read() -> std::uint16_t
+{
+    auto rfTemperature = adc.read(channel);
+    if(rfTemperature == static_cast<std::uint16_t>(RODOS::ADC_ERR_CONV_FAIL))
+    {
+        adc.reset();
+        Initialize();
+        rfTemperature = adc.read(channel);
+    }
+    return rfTemperature;
+}
+}

Sts1CobcSw/Periphery/TemperatureSensor.hpp

@@ -0,0 +1,11 @@
+#pragma once
+
+
+#include <cstdint>
+
+
+namespace sts1cobcsw::rftemperaturesensor
+{
+auto Initialize() -> void;
+auto Read() -> std::uint16_t;
+}

Tests/HardwareTests/CMakeLists.txt

@@ -103,6 +103,13 @@ target_link_libraries(
 )
 add_watchdog_version_of(SpiSupervisor)
 
+add_program(TemperatureSensor TemperatureSensor.test.cpp)
+target_link_libraries(
+    Sts1CobcSwTests_TemperatureSensor PRIVATE rodos::rodos Sts1CobcSw_Periphery
+                                              Sts1CobcSwTests_RfLatchupDisablePin
+)
+add_watchdog_version_of(TemperatureSensor)
+
 add_program(Gpio Gpio.test.cpp)
 target_link_libraries(
     Sts1CobcSwTests_Gpio PRIVATE rodos::rodos Sts1CobcSw_Hal Sts1CobcSwTests_RfLatchupDisablePin

Tests/HardwareTests/TemperatureSensor.test.cpp

@@ -0,0 +1,44 @@
+#include <Tests/HardwareTests/RfLatchupDisablePin.hpp>
+
+#include <Sts1CobcSw/Periphery/TemperatureSensor.hpp>
+
+#include <rodos_no_using_namespace.h>
+
+
+namespace sts1cobcsw
+{
+class TermperatureSensorTest : public RODOS::StaticThread<>
+{
+public:
+    TermperatureSensorTest() : StaticThread("TermperatureSensorTest")
+    {
+    }
+
+
+private:
+    void init() override
+    {
+        InitializeRfLatchupDisablePins();
+        rftemperaturesensor::Initialize();
+    }
+
+
+    void run() override
+    {
+        using RODOS::PRINTF;
+
+        EnableRfLatchupProtection();
+
+        PRINTF("\nRF temperature sensor test\n\n");
+
+        auto const conversionFactor = 0.0806;  // °C/bit
+        auto const offset = -50;               // °C at 0 V
+        TIME_LOOP(0, 1000 * RODOS::MILLISECONDS)
+        {
+            auto temperature = rftemperaturesensor::Read();
+            PRINTF("raw value   = %5d\n", temperature);
+            PRINTF("temperature = %5.1f deg C\n", temperature * conversionFactor + offset);
+        }
+    }
+} termperatureSensorTest;
+}