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Chapter 4 Guidance of simulated operations

General introduction: Simulated part of XL400+ is realized by SST89E516RD simulated monitoring chips. Being used with KEIL software, it could not only realize the simulation with the resource on board, but could simulate the out-connected target boards through 40PIN simulated heads.

Hardware installment:First connect USB wires, insert the simulated chips (not at89w51) into the experimental card socket and lock it hard.( Please make sure the USB driving program has been installed correctly.

Software installment: Directly copy disk\open tool\keil\to the root catalog in disk C, take off the read-only characteristic of all files.(Please notice that must the root catalog of disk C rather of any other catalogs.)

 Build your first project(software operation guidance):

1  Click project manual, choose new project, input the name of your fist program project in “file name”. Suppose we use  “test” as the name, after “save” our files, the extended name is uu2 which is the extended name of KEIL uVision2 project files. Then we could click this file to open the project done before.

Now, there will flip a dialogue frame for you to choose the style of the single chip machine, we choose ATMEL---AT89C51. Please notice that we are using 89S52 actually, but their resources are basically the same so you don’t have to care about that.

2.The build-up of source files: Click new…in the file manual to create a text editing window. Insert in it a program example such as flowing water programs. Then “save” order in file manual to save files. Please notice that a suffix name .asm of files must be inserted. (Notice that there could not be Chinese catalogs and make sure the file names could not be longer than 8 bits, or the programming will not be passed. If you are using that for the first time, we suggest that you save the file in the root catalog of disk C with the same file name 001.ASM. Do not try to save it to the desktop\my document etc.)

3．Click “+”before target 1, there will be source group 1, click the right button to choose “add files group source group 1”, then choose the file type as Asm, choose 001.asm file then press add, in the frame following that, click “confirm”.

4．Simulated part uses Mon51 protocol, so we must setup the software project as follows: single click “project”, in the manual under it, single click “options for target 1” As is shown in the following picture, single click “target” to input the frequency of simulation machines.(12MHz).

5. Click output and “create HEX file” option to produce HEX codes after for programmer.

6. Click “KeilMonitor-51 Driver” in “Debug”, choose loading codes to simulation machines and run it to main0, then click setup.

7. Single click “settings” to choose the serial port to be used.(That must accord with the real situation. If you are not sure about that, you could check and solve the problem through controlling board\hardware\port\communication port. Meanwhile, please notice that there could not be other software such as XLISP downloading software which might occupy resources running at the same time, or there might be conflict.(Usually the COM3)

8. Program according to the following two downward arrows ,( or press F7 for convenience). After successful programming, there will be indicated as 0 mistake, or 0 warning. Now hex files are produced and we could also use isp method to program HEX into single chip machines to experiment. Then we could do the hardware simulation, insert the simulated chip into the experimental card socket of XL400+, please do press the “reset” button on XL400+ when beginning to simulate.

9  Click the 3^rdred d

 (debug) or press Ctrl+F5 for convenience to enter simulation. Now an indication of successful connection will be shown on the interface.(Or the settings must be wrong please check it carefully.)

(Indication of the successful connection of simulation.)

Then click the “run fully” button shown in the picture, and you will see the 8 red LED of XL400+ light in turn which means successful operation. You could also see related variables and parameters or which is also very convenient.

When withdrawing from simulation, press the reset button of XL400+, then click d to be back to the editing mode. After revising programs, we re-program, click the d in red and you could enter the simulation mode again.

Till now you’ve finished the standardized operation of keil software, you could observe the change of registers on experimental board in order to experience the running process through clicking running for each step. Please do press the button of XL400+ entering or withdrawing.)

(Please notice: Simulation state will occupy some of CUP resources and make some programs can not simulate correctly. And we