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Hi i am workin on Sharc 21060 blacktip Ex board. i am facing a problem which is quite random in nature. In Visual DSP enviorment whenever i go in to debugger and loads my program on procesor, i expect the processor to halt at main(), as i have selcted it in options. but many a times it contnues to show running the program. also when i halt it, i am able to see the dm variables in memory without any data(intialsied to 0). also debugger dont show the window for C program(source) it gives an error as "There is no source for current PC". also i am not able to hardware reset the board. though sometimes things goes very fine but most of time i face this problem. if anybody has ever faced a similar problem please help me out. what can be the potential causes for it? i am relatively new to DSP processors. thanks in anticipation sandeep |
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random problem-- need help
Started by ●December 3, 2003
Reply by ●December 4, 20032003-12-04
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--- In , "sandeep kumar" <sandeep1980@h...> wrote: > Hi > i am workin on Sharc 21060 blacktip Ex board. > > i am facing a problem which is quite random in nature. In > Visual DSP enviorment whenever i go in to debugger and loads my > program on procesor, i expect the processor > to halt at main(), as i have selcted it in options. > > but many a times it contnues to show running the program. also > when i halt it, i am able to see the dm variables in memory without > any data(intialsied to 0). also debugger dont show the window for C > program(source) it gives an error as "There is no source for > current PC". also i am not able to hardware reset the board. > > though sometimes things goes very fine but most of time i face > this problem. > > if anybody has ever faced a similar problem please help me out. what > can be the potential causes for it? i am relatively new to DSP > processors. Firstly, if you have the emulator plugged in, you can't reset the board (hard reset). This is a limitation of the emulator. If you unplug the emulator pod and then reset, it should be fine. Your symptoms seem to indicate that you have some interrupts occuring that are unhandled. So before the processor can get to main(), it jumps to what is popularly known as 'la la' land. So there is no source associated with wherever the current PC is when you stop it. Hope that explains things. You'll have to figure out what causes this to happen, by disabling the run-to-main option. Try single stepping after loading until you reach main(). Repeat as often as needed until you can reproduce the behaviour. Cheers Bhaskar > > thanks in anticipation > sandeep |
