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tkl_system | System Interfaces

Overview

This topic describes the interfaces related to system functions.

API description

tkl_system_reset

void tkl_system_reset(void)

  • Feature: Performs a system reboot.

  • Parameter: None.

  • Return value: None.

Calling this function will cause the system to reboot.

tkl_system_get_tick_count

SYS_TICK_T tkl_system_get_tick_count(void)

  • Feature: Gets the system tick count.

  • Parameter: None.

  • Return value: SYS_TICK_T, the current value of the system tick count.

tkl_system_get_millisecond

SYS_TIME_T tkl_system_get_millisecond(void)

  • Feature: Gets the number of milliseconds elapsed since system startup.

  • Parameter: None.

  • Return value: SYS_TIME_T, the total number of milliseconds from system startup to the current moment.

tkl_system_get_random

int tkl_system_get_random(uint32_t range)

  • Feature: Gets a random number within a specified range.

  • Parameter: range indicates the range of the random number, from 0 to range (excluding range itself).

  • Return value: int, the generated random number.

The random number generator is initialized upon its first call.

tkl_system_get_reset_reason

TUYA_RESET_REASON_E tkl_system_get_reset_reason(char** describe)

  • Feature: Gets the reason for the system reset.

  • Parameter: describe, a pointer to a string describing the system reset reason.

  • Return value: TUYA_RESET_REASON_E, an enumeration value indicating the reset reason.

    typedef enum {
        TUYA_RESET_REASON_POWERON    = 0,  ///< Power-on reset type, supply voltage < power-on threshold (TY_RST_POWER_OFF)
        TUYA_RESET_REASON_HW_WDOG    = 1,  ///< Hardware watchdog reset occurred (TY_RST_HARDWARE_WATCHDOG)
        TUYA_RESET_REASON_FAULT      = 2,  ///< An access fault occurred (TY_RST_FATAL_EXCEPTION)
        TUYA_RESET_REASON_SW_WDOG    = 3,  ///< Software watchdog reset occurred (TY_RST_SOFTWARE_WATCHDOG)
        TUYA_RESET_REASON_SOFTWARE   = 4,  ///< Software triggered reset (TY_RST_SOFTWARE)
        TUYA_RESET_REASON_DEEPSLEEP  = 5,  ///< Reset caused by entering deep sleep (TY_RST_DEEPSLEEP)
        TUYA_RESET_REASON_EXTERNAL   = 6,  ///< External reset trigger        (TY_RST_HARDWARE)
        TUYA_RESET_REASON_UNKNOWN    = 7,  ///< Underterminable cause
        TUYA_RESET_REASON_FIB        = 8,  ///< Reset originated from the FIB bootloader
        TUYA_RESET_REASON_BOOTLOADER = 8,  ///< Reset relates to an bootloader
        TUYA_RESET_REASON_CRASH      = 10, ///< Software crash
        TUYA_RESET_REASON_FLASH      = 11, ///< Flash failure caused reset
        TUYA_RESET_REASON_FATAL      = 12, ///< A non-recoverable fatal error occurred
        TUYA_RESET_REASON_BROWNOUT   = 13, ///< Brown out
        TUYA_RESET_REASON_UNSUPPORT  = 0xFF,
    } TUYA_RESET_REASON_E;

Different reset sources are mapped to specific enumeration values.

tkl_system_sleep

void tkl_system_sleep(uint32_t num_ms)

  • Feature: Puts the system into a sleep state for a specified duration.

  • Parameter: num_ms, the sleep duration in milliseconds.

  • Return value: None.

Calling this function will pause the task scheduler for the current task for a specified duration.

tkl_system_delay

void tkl_system_delay(uint32_t num_ms)

  • Feature: Delays the system for a specified duration.

  • Parameter: num_ms, the delay duration in milliseconds.

  • Return value: None.

tkl_system_get_cpu_info

OPERATE_RET tkl_system_get_cpu_info(TUYA_CPU_INFO_T **cpu_ary, int *cpu_cnt)

  • Feature: Gets the system CPU information.

  • Parameters:

    • cpu_ary: Pointer to an array of type TUYA_CPU_INFO_T, used to receive CPU information.
    • cpu_cnt: Pointer used to receive the number of CPUs.

  • Return value: OPERATE_RET indicates the operation result. OPRT_OK indicates success, while any other value indicates an error. For detailed error codes, refer to tuya_error_code.h.

This function is not supported in the current implementation. Calling it will return OPRT_NOT_SUPPORTED.