• context switch
    I am programming a simple full pre-emptive RTOS. It needs context switch. For saving contexts, is it enough to save all registers and CPSR? if tasks have local variables, and the complier uses memories...
  • context switch stops
    I have a simple test project running under RTX. One task is using I2C bus. Whenever for testing purposes I'm unplugging one of the I2C wires RTX doesn't want to switch context even running through os_tsk_pass...
  • Saving context before a switch
    Hello, I am working with an xc167. Currently I use a round-robin schedular, but I want to write my own preemptive schedular. I have browsed through the user manual, but it is still not 100% clear to...
  • A question about context switching
    Hello, There is an issue related to context switches that I do not understand. I have written the most simple interrupt handler: void foo() interrupt 0x20 using f_regs { } The generated assembly...
  • Having fun with STR9 context switch for the RealView compiler
    Hello all, If you are interested, I am working on a new personal project - an ARM9 scheduler ("Sand Storm", but the name is still volatile. It will inherit a lot from sourceforge.net/.../, however...