![]() ![]() Os_tsk_delete_self () /* Terminate this task */Ĭookie Settings | Terms of Use | Privacy | Accessibility | Trademarks | Contact Us | FeedbackĬopyright © 2005-2019 Arm Limited (or its affiliates). VICVectAddr14 = (U32)eint0_int /* Task started, Enable interrupts */ Pr_task = os_tsk_create (process_task, 100) ![]() PINSEL1 &= ~0x00000003 /* Enable EINT0 */ĮXTMODE = 0x03 /* Edge triggered lo->hi transition */ Isr_evt_set (EVT_KEY, pr_task) /* Send event to 'process_task' */ĮXTINT = 0x01 /* Acknowledge Interrupt */ In this example, process_task is simple and only counts The task process_task processes the external interruptĮvent. The interrupt function, ext0_int, sends an event to process_task andĮxits. The following example shows how to use interrupts with the RTX You cannot call the isr_ library functions from the Keil MDK-ARM or IAR Embedded Workbench IDE. The FIQ interrupts are never disabled by the RTX The interrupt enable register for the UART, COMIEN, is for UART. Interrupt functions are added to an ARM application in the same The following figure shows how interrupts should be handled with Description: Trigger a UART interrupt service. This avoids common problems with nested interrupts where the user FIFO and send the FIFO content without gaps in the transmission. With this practice, interrupt nesting becomes unimportant. Short interrupt functions that send signals or messages to RTOS The sequences are: 1) From Host to MCU: 'UARTOn'. There are a series of command messages from the host. ![]() The host will send command message to UART1 of MCU LPC1768 and the MCU will reply with a predefined message. RTX can work with interrupt functions in parallel. Im working on a project in which the MCU LPC1768 will be connected to a host. RL-ARM User's Guide (MDK v4) RL-RTX Overview Product Description Product Specification Technical Data Timing Specifications Advantages Your First RTX Application Theory of Operation Timer Tick Interrupt System Task Manager Task Management Idle Task System Resources Scheduling Options Pre-emptive Scheduling Round-Robin Scheduling Cooperative Multitasking Priority Inversion Stack Management User Timers Interrupt Functions Configuring RL-RTX Configuration Options Tasks Stack Size Stack Checking Run in Privileged Mode Hardware Timer Round-Robin Multitasking User Timers FIFO Queue Buffer Idle Task Error Function Create New RTX_Config.c Configuration Macros Alternate Tick Timer Low Power RTX Library Files Using RL-RTX Writing Programs Include Files Defining Tasks Multiple Instances External References Using a Mailbox SWI Functions SVC Functions Debugging System Info Task Info Event Viewer Usage Hints ARM7/ARM9 Version Cortex-M Version Create New RTX Application Function Reference Event Flag Management Routines Mailbox Management Routines Memory Allocation Routines Mutex Management Routines Semaphore Management Routines System Functions Task Management Routines Time Management Routines User Timer Management Routines RL-FlashFS RL-TCPnet RL-CAN RL-USB Example Programs Library Reference Appendix ![]()
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