• vsprintf crash at interrupt context
    Hello all, why does the following code crash when called from interrupt context, if I turn on all compiler optimizations? the call to vsprintf causes an access violation, even when run on the simulator...
  • using vsprintf() in my code is creating linking issues .
    Hello, When I include vsprintf() for printing on hyperterminal , my build is throwing the below issue during linking . lkarm E106: unresolved external: __aeabi_fcmpeq - (_doflt.obj) Building source...
  • interrupts
    hi everyone i am new to 8051 and and have some problem with interrupts while working with kiel software. i am unable to pass arguments to following function void serial_isr(char code *ptr) interrupt...
  • Interruption with IF
    I'm trying trying to program a square signal frequency to simulate the signal obtained in the sensor of the rpm of an engine (in the flywheel). This frequency is generated in a timer interruption. If...
  • interrupt
    Why the program don't enter in this intrrerupt?? this is my code void timer0_isr (void) interrupt 1 using 1 { int a=0,c; a++; // ram[a] = din(7); c=9; if (a > 10) a=0; }