BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

KEIL INTRODUCTION TO 8051 PROGRAMMING

& CREATING THE HEX FILE FOR THE 8051

Step1:- click on the keil uv4 then open a window Step:2 to Start the new project

Step3: save the project where you want Step 4: select the which company micro controller you

want

Step 5:-Select the particular microcontroller type Step 6: then it shows features of microcontroller and

click on OK.

1K.VENKATA REDDY (Assistant Professor)

BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

Step 7: it open the project space. Step 8: select the new file for the text editor.

Step8: in text editor type the program. Step9: and save as filename.c for embedded c source

file.

Step 10:- add those source file to the project work space. Step 11:- select the source file, add and close.

2K.VENKATA REDDY (Assistant Professor)

BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

Step 12: that source file shown in project work space step 13: compile the program by Ctrl+F7

Step14: Build the program by F7. Step 15: Rebuild the program as shown.

It there no errors then go to next step.

Step 16:- after rebuild completed. Step 17:- you start the start the debugging the program.

3K.VENKATA REDDY (Assistant Professor)

BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

Step18:- it shows some information step 19:- then indicates one yellow color symbol, that

Indicates the starting execution point.

Step 20:- goto the peripherals and select ports need. Step 21:- it shows the different ports with initial value

is high in the ports.

Step 22:- for run the program goto debug and Step 23:- it shows the changes the data on ports.

press RUN(F7)

4K.VENKATA REDDY (Assistant Professor)

BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

Step 24:- there tick indicates that high in port pins. Step 25:- To stop debugging goto debug and

to stop the debugging session.

Or while executing the program then interested to stop the execution then select the stop.

Step 26:- there shows that reg51.h in the project window. Double click on that reg51.h then it will shows the

reg51.h library file.

-----------creating HEX file--------------------

5K.VENKATA REDDY (Assistant Professor)

BAPATLA ENGINEERING COLLEGE DEPT. OF ECE.

Step 27:- For creating the hex file goto flash and select the configure flash toos.

Step 28:- then it will shows the one window.

Step 29:- click on ouput. Step 30:- select that create hex file and OK.

Step 31:- After that do build then it creates the HEX file at the location where the project is to be saved with

dot extension as hex.

Example hex code for the blink led.

Hex code:

:03000000020827CC

:0C082700787FE4F6D8FD75810702080018

:1008000075A001E4FFFE0FBF00010EBE13F8BF8804

:10081000F575A002E4FEFFC3EF9488EE941350E058

:070820000FBF00010E80F084

:00000001FF

6K.VENKATA REDDY (Assistant Professor)