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Fixes HardFault on boardOff() with forced power supply

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Fixes power-off HardFault during hw-debugging at the end of boardOff(), when power supply to MCU is forced (developer boards, w/o cutting power with pwrOff() ).
This commit is contained in:
Risto
2021-05-29 13:40:05 +02:00
committed by Raphael Coeffic
parent 8940b01de6
commit 3a01639f5f
1 changed files with 20 additions and 0 deletions
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radio/src/targets/horus/board.cpp
+20
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@@ -264,6 +264,26 @@ void boardOff()
RTC->BKP0R = SHUTDOWN_REQUEST;
pwrOff();
// We reach here only in forced power situations, such as hw-debugging with external power
// Enter STM32 stop mode / deep-sleep
// Code snippet from ST Nucleo PWR_EnterStopMode example
#define PDMode 0x00000000U
#if defined(PWR_CR_MRUDS) && defined(PWR_CR_LPUDS) && defined(PWR_CR_FPDS)
MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPDS | PWR_CR_FPDS | PWR_CR_LPUDS | PWR_CR_MRUDS), PDMode);
#elif defined(PWR_CR_MRLVDS) && defined(PWR_CR_LPLVDS) && defined(PWR_CR_FPDS)
MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPDS | PWR_CR_FPDS | PWR_CR_LPLVDS | PWR_CR_MRLVDS), PDMode);
#else
MODIFY_REG(PWR->CR, (PWR_CR_PDDS| PWR_CR_LPDS), PDMode);
#endif /* PWR_CR_MRUDS && PWR_CR_LPUDS && PWR_CR_FPDS */
/* Set SLEEPDEEP bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
// To avoid HardFault at return address, end in an endless loop
while (1) {
}
}
#if defined (RADIO_TX16S)