STC 32-bit 8051 single chip microcomputer development example tutorial three program compilation setting and download

Here is the end program STC32G Program source code ：

/*main.c
  Designed by Bill Liu
  Version 0.0 
  Modified last by Bill Liu on 06/22/2022
*/

#include "main.h"
#include "config.h"

void main()
{
	STC32G_P7PinsInit(PIN3, BI_IO, 0, 0, 0, 0, 1, 1);
	//P73 = 0;
	STC32G_P0PinsInit(0xFF, BI_IO, 1, 0, 0, 0, 1, 1); //init to bidirectional I/O, pull up disable, pull down disable , dive ability enhance disable, 
	//high speed disable, digital singal input enable, schmitt trigger enable
	STC32G_P2PinsInit(0xFF, BI_IO, 0, 0, 0, 0, 1, 1);
	P0 = 0xAA;
	P2 = 0xFF;
	//P73 = 0;
	while(1)
	{
		
		if(P2 == P0)
			P73 = 0;
		else
			P73 = 1;
	}
}
//End of main()

Keil C251 Of Target Items are set as follows ：

 L251 Misc The settings are as follows ：

  Compile the above program , give the result as follows ：

  modify Keil C251 Of Target Items are set as follows ：

  Compile the same program , give the result as follows ：

There is 4 individual Warnings. Then modify Keil C251 Of Target Item setting modification , as follows ：

  Compile the same program , give the result as follows ：

  nothing Warning. Revise Keil C251 Of Target Item settings , as follows ：

 

  Compile the same program , give the result as follows ：

  nothing Warning. Revise Keil C251 Of Target Item settings , as follows ：

   Compile the same program , give the result as follows ：

  nothing Warning. Revise Keil C251 Of Target Item settings , as follows ：

   Compile the same program , give the result as follows ：

   nothing Warning. Revise Keil C251 Of Target Item settings , as follows ：

  Compile the same program , give the result as follows ：

 

  nothing Warning. Revise Keil C251 Of Target Item settings , as follows ：

  Compile the same program , give the result as follows ：

  There is an error . Revise Keil C251 Of Target Item settings , as follows ：

  Compile the same program , give the result as follows ：

  Compile successfully , nothing Warning.

As can be seen from the above example , The same procedure , Choose different settings , Without adjusting the optimization level , Compiled program code The size is different . If you choose some, you may make compilation errors .

Now compile and modify the program with the following settings ：

  The compilation results are as follows ：

Will be compiled to get hex file , download To SCM , Normally red LED It should light . The results after downloading are as follows ：

Red LED It does light up , Explain that the program is ok . Re change Keil C251 Of Target Item settings , as follows ：

compiler , give the result as follows ：

  Compile and pass , No, Warning. Will be compiled to get hex file , download To SCM , Normally red LED It should light . The results after downloading are as follows ：

  Red LED Not lit . Explain the program compiled by changing the settings , Not working properly .

STC 32G Series MCU can still be like STC 8 position 8051 Single chip microcomputer can be used ch340 USB Serial port module to achieve ISP Download program . My download tools are as follows ：

In general , Don't mind STC 32G Clock setting of single chip microcomputer , Select the required working frequency when downloading STC_ISP The download tool software will automatically set it to automatic frequency tracking mode . The download interface is as follows ：