Hello,
my name is Alexander, and despite I did a bunch of microcontroller and C firmware development in the past, I must admit that I am completely new to Sysbios programming. I am currently developing my first program with sysbios on the
MSP430F2619 and I have currently lots of issues with sysbios.
My program does the following: Watchdog is disabled via the option 'Disable watchdog reset" in Module Boot
(otherwise my program never reaches main(), thats the first problem I had to solve :( ). Then at the start of main I
hold the watchdog again, and I also enable an external 8 MHz crystal on LFXTL1, and then I switch the MCLK clock source to this osc. Oscillator starts running with 8 MHz and program continues.
Then I call BIOS_start() and the following happens:
1, in ti_sysbios_BIOS_startFunc__I() all the functions are called: oscillator and program still runs fine
then in this function ti_sysbios_knl_Task_startup(); is called
2, in ti_sysbios_knl_Task_startup() is called
If I now press Step into once I end up in the function 'Swi_startup" with does a single command "Swi_restore(FALSE);
After pressing the Step into again for multiple of times I end up doing a lot of Swi and Hwi related function stuff with
Keys and so on.
Then the program ends up in the function Task_disable(), and from there it jumps to Tasl_startCore(), and in this function the final instructions I can see are the following (a loop):
while (Task_module->curSet == 0) {
Task_allBlockedFunc();
}
And after the call of Task_allBlockFunc() the whole microcontroller restarts somehow, and everything start again. So it seems I have a endless loop of restart, reconfiguring the XTAL, start of Bios_start, and then a restart of the device again.
If I disable the TASK module then the program seems to run fine, at least the IDLE module worked well for me once.
Somehow I have the feeling something is seriously wrong with my setup of sysbios.
My only lead is the following observation under RTOS Object view (ROV) after jumping into the main() function:
If I go to scan for errors I get the following problems:
ti.sysbios.family.msp430.Hwi Module, field = hwiStackPeak message = Overrun!
ti.sysbios.knl.Task, inst = ti.sysbios.knl.Task.IdleTask, field = mode, message = Invalid mode: 4
I get the invalid mode error also for my own single Task which I have set up for testing purposes.
And also the ti.sysbios.knl.Task IdleTask shows a Hwi Sack Overrun! message.
Somehow I suspect this is all connected to my problem. I do not know what to do next, I tried already a lot for 2 days
to find the root cause but I did not succeed :(
Maybe somebody knows what to do now, I'm really thankful for every input I get, Thank you very much in advance,
Alex
