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Keil RTX interrupt handling

Prasanth R

I'm using lpc1768 controller keil RTX rtos and uart receive function by an interrupt. I was set a NVIC priority using NVIC_SetPriority(UART1_IRQn,1) while thread processing it don't goes to IRQHandler if any uart rx interrupt was occur. After finish the thread process then goes to IRQ Handler. I don't know how to set a high interrupt priority using RTOS. Please help me to solve this issue.

Thanks & Regards,
Prasanth.

Parents
  • 0

    Is the RTOS executing in privileged mode?

    The following depends on the version of RTX you are using...
    Did the thread disable interrupts during its execution?

    disable_irq()  //or similar
...
enable_irq()  //or similar

    Look for tsk_lock(), as well.

Reply
  • 0

    Is the RTOS executing in privileged mode?

    The following depends on the version of RTX you are using...
    Did the thread disable interrupts during its execution?

    disable_irq()  //or similar
...
enable_irq()  //or similar

    Look for tsk_lock(), as well.

Children
  • 0 in reply to Zack Havens

    Thanks for your response Zack Havens. Yes my RTOS execution in privileged mode and version is 4.81.1. The functions you mentioned disable_irq() and enable_irq() both are defined but commented in cmsis_armcc.h. They didn't gets called anywhere in a program. Another function you mentioned tsk_lock() i can't find it from the program. what i wanna do next?