Keil Programming

赵薇0317

Why is this wrong? I used to be able to call delay directly, why can't I do it now? The #include at the beginning is still wrong.

wsmysyn

When declaring, do you include the declaration of the formal parameters in the brackets? For example, void delay(int i);

赵薇0317

Now I have defined the delay and there is no error in the compilation, but the static digital tube of the microcontroller has a faint light. Is it because my program is too long-winded, or is there something wrong?

秋风少落叶

Change to P0^0 = array[i][0];

wsmysyn

Zhao Wei 0317 posted on 2018-3-24 09:28 Now I have defined the delay and there is no error in the compilation, but the static digital tube of the MCU has a faint light. Is it because my program is too long-winded, or what...

Do you want to drive IO or read IO? If you want to drive, you wrote it the other way around. You need P0^0 = array[0]; otherwise P0^0 will become the input port

赵薇0317

OK, I'll change it.

赵薇0317

wsmysyn posted on 2018-3-24 10:10 Do you want to drive IO or read IO? If it is driving, it is written inversely, P0^0 = array[0]; This is correct, otherwise P0^0 will become...

Now the function can be realized, but I added a LED flashing program to this program, and it can run normally, but the LED flashing time interval is too long, no matter how I change it, it doesn’t work. If the front digital tube is temporarily removed, the LED flashing time returns to normal. Why? Is there any mutual influence between the delay function calls before and after?

赵薇0317

Zhao Wei 0317 posted on 2018-3-24 13:23 Now the function can be realized, but I added a LED flashing program to this program, and it can run normally, but the time interval of the LED flashing is too...

I solved it, but there is a small problem again.

赵薇0317

Zhao Wei 0317 posted on 2018-3-24 13:23 Now the function can be realized, but I added a LED flashing program to this program, and it can run normally, but the time interval of the LED flashing is too...

I solved it, but there is a small problem again