OS_Tick_Handler

void OS_Tick_Handler (void);

The OS_Tick_Handler function handles the RTX tick interval interrupts. It is used in Cortex™-M library, if you are using alternate peripheral timer as RTX tick timer.

The OS_Tick_Handler is an interrupt handler function, which runs OS task scheduler. It is called by Nested Vectored Interrupt Controller (NVIC) on alternate timer interrupt, and can not be called as a regular c-function. It must be entered into the Interrupt Table in startup file. The default Cortex-M interrupt vector must be replaced by OS_Tick_Handler.

The OS_Tick_Handler system function is in RL-RTX library.

Note

• The OS_Tick_Handler function does not exist in ARM7™/ARM9™ library version.

None

os_tick_init, os_tick_irqack

; Vector Table Mapped to Address 0 at Reset

                AREA    RESET, DATA, READONLY
                EXPORT  __Vectors

                IMPORT  OS_Tick_Handler

__Vectors       DCD     __initial_sp              ; Top of Stack
                DCD     Reset_Handler             ; Reset Handler
                DCD     NMI_Handler               ; NMI Handler
                DCD     HardFault_Handler         ; Hard Fault Handler
                DCD     MemManage_Handler         ; MPU Fault Handler
                DCD     BusFault_Handler          ; Bus Fault Handler
                DCD     UsageFault_Handler        ; Usage Fault Handler
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     SVC_Handler               ; SVCall Handler
                DCD     DebugMon_Handler          ; Debug Monitor Handler
                DCD     0                         ; Reserved
                DCD     PendSV_Handler            ; PendSV Handler
                DCD     SysTick_Handler           ; SysTick Handler

                ; External Interrupts
                DCD     WDT_IRQHandler            ; 16: Watchdog Timer
                DCD     TIMER0_IRQHandler         ; 17: Timer0
                ...
                DCD     I2S_IRQHandler            ; 43: I2S
                DCD     ENET_IRQHandler           ; 44: Ethernet
                DCD     OS_Tick_Handler           ; 45: Repetitive Interrupt Timer
                DCD     MCPWM_IRQHandler          ; 46: Motor Control PWM
                ...