question need immediately urgent answer plz

hi profesional poeple. what are all the reasonns why a program can be bugged: ie what can make program go wrong. i need complete list so plz help now. thank you profesional person who answer...
question need immediately urgent answer plz

hi profesional poeple. what are all the reasonns why a program can be bugged: ie what can make program go wrong. i need complete list so plz help now. thank you profesional person who answer...
How to ensure a +RO variable is stored in flash and NOT in SRAM (plz answer both questions I beg)

I am building an application for AT91SAM7X256 using mostly Atmel standard peripheral libraries but also some other methods and headers I have added to them. When compiling for the flash (choosing “flash...
How to ensure a +RO variable is stored in flash and NOT in SRAM (plz answer both questions I beg)

I am building an application for AT91SAM7X256 using mostly Atmel standard peripheral libraries but also some other methods and headers I have added to them. When compiling for the flash (choosing “flash...
plz plz

i wanted to control a devices like fan or light, using mcu and the signal will be receive by the mcu came from the pc ,in the serial port.......but i dont know how to prog it for serial port to detect...