Detailed steps for debugging delay time of keil software-EEWORLD

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Methods/Steps

mS level delay subroutine with parameters
void delay_ms(uint z) //delay subroutine
{
   uint x,y;
   for(x=z;x>0;x--)
   for(y=110;y>0;y--);
}
The software debugging process of the above program! The crystal oscillator is 12M
Step 1: Select the microcontroller crystal
Step 2: Full Compilation
Step 3: Press d to enter software debugging
Step 4: Enter the program and set two breakpoints:
Step 5: Run at full speed to the first breakpoint: Note that the time is 0.000389s
Step 6: Press the button again to run at full speed to the second breakpoint: Note that the time is 1.013412s
Summary: The time difference between the two is about 1s, which is the time to execute delay_ms(1000)

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