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feat: add reset reason string #702

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Merged
heinwessels-philips merged 5 commits into from
Dec 22, 2025
+43 −0
Merged

feat: add reset reason string #702

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697e23f
feat: add reset reason
heinwessels-philips Dec 22, 2025
aa10146
Add power on reset
heinwessels-philips Dec 22, 2025
4071a14
Fix builds without POR reason
heinwessels-philips Dec 22, 2025
e6064e4
Try increase the timeout
heinwessels-philips Dec 22, 2025
858b936
Revert timeout. Change to GetResetReasonString
heinwessels-philips Dec 22, 2025
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3 changes: 3 additions & 0 deletions examples/helloworld/Main.cpp
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
#include "hal/interfaces/Gpio.hpp"
#include "hal_st/cortex/FaultTracer.hpp"
#include "hal_st/instantiations/NucleoUi.hpp"
#include "hal_st/instantiations/ResetReason.hpp"
#include "hal_st/instantiations/StmEventInfrastructure.hpp"
#include "hal_st/stm32fxxx/DmaStm.hpp"
#include "hal_st/stm32fxxx/UartStmDma.hpp"
Expand Down Expand Up @@ -82,6 +83,8 @@ int main()

services::SetGlobalTracerInstance(tracerWithDateTime);

services::GlobalTracer().Trace() << "Reset reason: " << hal::GetResetReasonString();

static infra::TimerRepeating timerRepeating{ std::chrono::seconds{ 1 }, []
{
services::GlobalTracer().Trace() << "Hello World !";
Expand Down
2 changes: 2 additions & 0 deletions hal_st/instantiations/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ target_link_libraries(hal_st.instantiations PUBLIC
hal_st.synchronous_stm32fxxx
infra.event
infra.timer
infra.util
services.tracer
)

Expand All @@ -25,4 +26,5 @@ target_sources(hal_st.instantiations PRIVATE
StmTracerInfrastructure.hpp
TracingResetStm.cpp
TracingResetStm.hpp
ResetReason.hpp
)
38 changes: 38 additions & 0 deletions hal_st/instantiations/ResetReason.hpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
#ifndef HAL_ST_INSTANTIATIONS_RESETREASON_HPP
#define HAL_ST_INSTANTIATIONS_RESETREASON_HPP

#include "infra/util/BoundedString.hpp"
#include DEVICE_HEADER

namespace hal
{
// Note: This function clears the reset flags after reading them
infra::BoundedConstString GetResetReasonString()
{
const char* resetReason;

if (__HAL_RCC_GET_FLAG(RCC_FLAG_LPWRRST))
resetReason = "LowPower";
#if defined(RCC_FLAG_PORRST)
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST))
resetReason = "PowerOn";
#endif
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_WWDGRST))
resetReason = "Window WatchDog";
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST))
resetReason = "Independent WatchDog";
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST))
resetReason = "Software";
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST))
resetReason = "Reset Pin";
else if (__HAL_RCC_GET_FLAG(RCC_FLAG_BORRST))
resetReason = "BrownOut(BOR)";
else
resetReason = "Unknown";

__HAL_RCC_CLEAR_RESET_FLAGS();
return resetReason;
}
}

#endif // HAL_ST_INSTANTIATIONS_RESETREASON_HPP
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