Functions | |
void | Cy_WDT_Init (void) |
Initializes the Watchdog timer to its default state. More... | |
void | Cy_WDT_Lock (void) |
Locks out configuration changes to the Watchdog Timer register. More... | |
void | Cy_WDT_Unlock (void) |
Unlocks the Watchdog Timer configuration register. More... | |
bool | Cy_WDT_Locked (void) |
Returns the WDT lock state. More... | |
void | Cy_WDT_ClearInterrupt (void) |
Clears the WDT match flag which is set every time the WDT counter reaches a WDT match value. More... | |
void | Cy_WDT_ClearWatchdog (void) |
Clears ("feeds") the watchdog, to prevent a XRES device reset. More... | |
__STATIC_INLINE void | Cy_WDT_Enable (void) |
Enables the Watchdog timer. More... | |
__STATIC_INLINE void | Cy_WDT_Disable (void) |
Disables the Watchdog timer. More... | |
__STATIC_INLINE bool | Cy_WDT_IsEnabled (void) |
Reports an enable/disable state of the Watchdog timer. More... | |
__STATIC_INLINE uint32_t | Cy_WDT_GetCount (void) |
Reads the current WDT counter value. More... | |
__STATIC_INLINE void | Cy_WDT_ResetCounter (void) |
Resets the WDT counter value. More... | |
__STATIC_INLINE void | Cy_WDT_MaskInterrupt (void) |
After masking interrupts from the WDT, they are not passed to the CPU. More... | |
__STATIC_INLINE void | Cy_WDT_UnmaskInterrupt (void) |
After unmasking interrupts from the WDT, they are passed to CPU. More... | |
void | Cy_WDT_SetMatch (uint32_t match) |
Configures the WDT counter match comparison value. More... | |
void | Cy_WDT_SetIgnoreBits (uint32_t bitsNum) |
Configures the number of the most significant bits of the Watchdog timer that are not checked against the match. More... | |
__STATIC_INLINE uint32_t | Cy_WDT_GetMatch (void) |
Reads the WDT counter match comparison value. More... | |
__STATIC_INLINE uint32_t | Cy_WDT_GetIgnoreBits (void) |
Reads the number of the most significant bits of the Watchdog timer that are not checked against the match. More... | |
void | Cy_WDT_SetMatchBits (uint32_t bitPos) |
Configures the bit position above which the bits will be ignored for match. More... | |
__STATIC_INLINE void | Cy_WDT_SetClkSource (cy_en_wdt_clk_sources_t src) |
Configures the WDT clock source. More... | |
__STATIC_INLINE cy_en_wdt_clk_sources_t | Cy_WDT_GetClkSource (void) |
Gets the WDT clock source configured. More... | |
__STATIC_INLINE uint32_t | Cy_WDT_GetMatchBits (void) |
Gets the bit position above which the bits will be ignored for match. More... | |
void | Cy_WDT_SetLowerLimit (uint32_t match) |
Set lower limit for watchdog. More... | |
void | Cy_WDT_SetUpperLimit (uint32_t match) |
Set upper limit for watchdog. More... | |
void | Cy_WDT_SetWarnLimit (uint32_t match) |
Set warn limit for watchdog. More... | |
void | Cy_WDT_SetLowerAction (cy_en_wdt_lower_upper_action_t action) |
Set action taken if this watchdog is serviced before LOWER_LIMIT is reached. More... | |
void | Cy_WDT_SetUpperAction (cy_en_wdt_lower_upper_action_t action) |
Set action taken if this watchdog is not serviced before UPPER_LIMIT is reached. More... | |
void | Cy_WDT_SetWarnAction (cy_en_wdt_warn_action_t action) |
Set action taken when the count value reaches WARN_LIMIT. More... | |
void | Cy_WDT_SetAutoService (cy_en_wdt_enable_t enable) |
Set automatically service when the count value reaches WARN_LIMIT. More... | |
void | Cy_WDT_SetDeepSleepPause (cy_en_wdt_enable_t enable) |
Set whether the WDT counter runs/pauses when the system is in DEEPSLEEP. More... | |
void | Cy_WDT_SetHibernatePause (cy_en_wdt_enable_t enable) |
Set whether the WDT counter runs/pauses when the system is in HIBERNATE. More... | |
void | Cy_WDT_SetDebugRun (cy_en_wdt_enable_t enable) |
Set the debug run value. More... | |
void | Cy_WDT_SetService (void) |
Set service of the watchdog. More... | |
void Cy_WDT_Init | ( | void | ) |
Initializes the Watchdog timer to its default state.
The given default setting of the WDT: The WDT is unlocked and disabled. The WDT match value is 4096. None of ignore bits are set: the whole WDT counter bits are checked against the match value.
The given default setting of the WDT: The WDT is unlocked and disabled. The WDT Lower Limit value is set to 0 and Lower action to None. The WDT Warn Limit value is set to 0 and Warn action to None. The WDT Upper Limit value is set to 32000 (1 second) and Upper action to Reset. The WDT is locked again.
void Cy_WDT_Lock | ( | void | ) |
Locks out configuration changes to the Watchdog Timer register.
After this function is called, the WDT configuration cannot be changed until Cy_WDT_Unlock() is called.
void Cy_WDT_Unlock | ( | void | ) |
Unlocks the Watchdog Timer configuration register.
bool Cy_WDT_Locked | ( | void | ) |
Returns the WDT lock state.
void Cy_WDT_ClearInterrupt | ( | void | ) |
Clears the WDT match flag which is set every time the WDT counter reaches a WDT match value.
Two unserviced interrupts lead to a system reset (i.e. at the third match).
Clears the WDT match flag which is set every time the WDT counter reaches a WDT match value.
void Cy_WDT_ClearWatchdog | ( | void | ) |
Clears ("feeds") the watchdog, to prevent a XRES device reset.
This function simply call Cy_WDT_ClearInterrupt() function.
This function simply call Cy_WDT_SetService() function.
__STATIC_INLINE void Cy_WDT_Enable | ( | void | ) |
Enables the Watchdog timer.
__STATIC_INLINE void Cy_WDT_Disable | ( | void | ) |
Disables the Watchdog timer.
The Watchdog timer should be unlocked before being disabled. Call the Cy_WDT_Unlock() API to unlock the WDT.
__STATIC_INLINE bool Cy_WDT_IsEnabled | ( | void | ) |
Reports an enable/disable state of the Watchdog timer.
__STATIC_INLINE uint32_t Cy_WDT_GetCount | ( | void | ) |
Reads the current WDT counter value.
__STATIC_INLINE void Cy_WDT_ResetCounter | ( | void | ) |
Resets the WDT counter value.
__STATIC_INLINE void Cy_WDT_MaskInterrupt | ( | void | ) |
After masking interrupts from the WDT, they are not passed to the CPU.
This function does not disable the WDT-reset generation.
__STATIC_INLINE void Cy_WDT_UnmaskInterrupt | ( | void | ) |
After unmasking interrupts from the WDT, they are passed to CPU.
This function does not impact the reset generation.
void Cy_WDT_SetMatch | ( | uint32_t | match | ) |
Configures the WDT counter match comparison value.
The Watchdog timer should be unlocked before changing the match value. Call the Cy_WDT_Unlock() function to unlock the WDT.
match | The valid valid range is [0-65535]. The value to be used to match against the counter. |
void Cy_WDT_SetIgnoreBits | ( | uint32_t | bitsNum | ) |
Configures the number of the most significant bits of the Watchdog timer that are not checked against the match.
Unlock the Watchdog timer before ignoring the bits setting. Call the Cy_WDT_Unlock() API to unlock the WDT.
bitsNum | The valid range is [0-15] for CAT1A devices, The bitsNum over 12 are considered as 12. The valid range is [0-21] for CAT1B/CAT1D devices, The bitsNum over 18 are considered as 18. |
The value of bitsNum controls the time-to-reset of the Watchdog timer This happens after 3 successive matches.
__STATIC_INLINE uint32_t Cy_WDT_GetMatch | ( | void | ) |
Reads the WDT counter match comparison value.
__STATIC_INLINE uint32_t Cy_WDT_GetIgnoreBits | ( | void | ) |
Reads the number of the most significant bits of the Watchdog timer that are not checked against the match.
void Cy_WDT_SetMatchBits | ( | uint32_t | bitPos | ) |
Configures the bit position above which the bits will be ignored for match.
bitPos | The bit position above which the match should be ignored. |
The value of bitPos controls the time-to-reset of the Watchdog timer This happens after 3 successive matches.
__STATIC_INLINE void Cy_WDT_SetClkSource | ( | cy_en_wdt_clk_sources_t | src | ) |
Configures the WDT clock source.
src | cy_en_wdt_clk_sources_t |
Adding 4 cycle delay
__STATIC_INLINE cy_en_wdt_clk_sources_t Cy_WDT_GetClkSource | ( | void | ) |
Gets the WDT clock source configured.
__STATIC_INLINE uint32_t Cy_WDT_GetMatchBits | ( | void | ) |
Gets the bit position above which the bits will be ignored for match.
void Cy_WDT_SetLowerLimit | ( | uint32_t | match | ) |
Set lower limit for watchdog.
match | - Value to be matched |
void Cy_WDT_SetUpperLimit | ( | uint32_t | match | ) |
Set upper limit for watchdog.
match | - Value to be matched |
void Cy_WDT_SetWarnLimit | ( | uint32_t | match | ) |
Set warn limit for watchdog.
match | - Value to be matched |
void Cy_WDT_SetLowerAction | ( | cy_en_wdt_lower_upper_action_t | action | ) |
Set action taken if this watchdog is serviced before LOWER_LIMIT is reached.
action | cy_en_wdt_lower_upper_action_t |
void Cy_WDT_SetUpperAction | ( | cy_en_wdt_lower_upper_action_t | action | ) |
Set action taken if this watchdog is not serviced before UPPER_LIMIT is reached.
action | cy_en_wdt_lower_upper_action_t |
void Cy_WDT_SetWarnAction | ( | cy_en_wdt_warn_action_t | action | ) |
Set action taken when the count value reaches WARN_LIMIT.
action | cy_en_wdt_warn_action_t |
void Cy_WDT_SetAutoService | ( | cy_en_wdt_enable_t | enable | ) |
Set automatically service when the count value reaches WARN_LIMIT.
This function is used for WARN_LIMIT.
enable | cy_en_wdt_enable_t |
void Cy_WDT_SetDeepSleepPause | ( | cy_en_wdt_enable_t | enable | ) |
Set whether the WDT counter runs/pauses when the system is in DEEPSLEEP.
enable | cy_en_wdt_enable_t |
void Cy_WDT_SetHibernatePause | ( | cy_en_wdt_enable_t | enable | ) |
Set whether the WDT counter runs/pauses when the system is in HIBERNATE.
enable | cy_en_wdt_enable_t |
void Cy_WDT_SetDebugRun | ( | cy_en_wdt_enable_t | enable | ) |
Set the debug run value.
It needs when using debugger.
enable | cy_en_wdt_enable_t |
void Cy_WDT_SetService | ( | void | ) |
Set service of the watchdog.
This resets the count value to zero.