diff options
Diffstat (limited to 'cc3200/hal/prcm.c')
| -rw-r--r-- | cc3200/hal/prcm.c | 80 |
1 files changed, 18 insertions, 62 deletions
diff --git a/cc3200/hal/prcm.c b/cc3200/hal/prcm.c index d48b3ce77e..773fc90fb0 100644 --- a/cc3200/hal/prcm.c +++ b/cc3200/hal/prcm.c @@ -129,11 +129,12 @@ //***************************************************************************** // // Bit: 31 is used to indicate use of RTC. If set as '1', RTC feature is used. -// Bit: 30 is used to indicate that a safe boot should be performed -// bit: 29 is used to indicate that the last reset was caused by the WDT -// Bits: 28 to 26 are unused +// Bit: 30 is used to indicate that a safe boot should be performed. +// bit: 29 is used to indicate that the last reset was caused by the WDT. +// bit: 28 is used to indicate that the board is booting for the first time after being programmed in factory. +// Bits: 27 and 26 are unused. // Bits: 25 to 16 are used to save millisecond part of RTC reference. -// Bits: 15 to 0 are being used for HW Changes / ECO +// Bits: 15 to 0 are being used for HW Changes / ECO. // //***************************************************************************** @@ -254,94 +255,49 @@ static const PRCM_PeriphRegs_t PRCM_PeriphRegsList[] = //***************************************************************************** // -//! Requests a safe boot +//! Set a special bit //! //! \return None. // //***************************************************************************** -void PRCMRequestSafeBoot(void) +void PRCMSetSpecialBit(unsigned char bit) { unsigned int uiRegValue; - uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 30); + uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << bit); PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue); } //***************************************************************************** // -//! Clear the safe boot request +//! Clear a special bit //! //! \return None. // //***************************************************************************** -void PRCMClearSafeBootRequest(void) +void PRCMClearSpecialBit(unsigned char bit) { unsigned int uiRegValue; - uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 30)); + uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << bit)); PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue); } //***************************************************************************** // -//! Read the safe boot request bit. This bit is cleared after reading. +//! Read a special bit //! -//! \return Value of the safe boot bit +//! \return Value of the bit // //***************************************************************************** -tBoolean PRCMIsSafeBootRequested(void) +tBoolean PRCMGetSpecialBit(unsigned char bit) { - tBoolean safeboot = (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 30)) ? true : false; - - PRCMClearSafeBootRequest(); - - return safeboot; -} - -//***************************************************************************** -// -//! Signals that a WDT reset has occurred -//! -//! \return None. -// -//***************************************************************************** -void PRCMSignalWDTReset(void) -{ - unsigned int uiRegValue; - - uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 29); - - PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue); -} - -//***************************************************************************** -// -//! Clear the WDT reset signal -//! -//! \return None. -// -//***************************************************************************** -void PRCMClearWDTResetSignal(void) -{ - unsigned int uiRegValue; - - uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 29)); - - PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue); -} - -//***************************************************************************** -// -//! Read the WDT reset signal bit -//! -//! \return Value of the WDT reset signal bit -// -//***************************************************************************** -tBoolean PRCMWasResetBecauseOfWDT(void) -{ - return (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 29)) ? true : false; + tBoolean value = (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << bit)) ? true : false; + // special bits must be cleared immediatelly after reading + PRCMClearSpecialBit(bit); + return value; } //***************************************************************************** |