Keil uVision Plugin: Matrix Keyboard

NeoEGM — Mon, 03 May 2010 04:53:36 +0000

Update (2010-05-19): schematic updated to reflect real circuit.

Since I could not manage to find a decent matrix keyboard plugin for Keil uVision, I’ve decided to develop one.

Internally, it responds to the following schematic:

It’s prepared to accept multiple key presses at once, so you can simulate a real world application:

Usage

First of all, you must install it on the Keil uVision and configure your project in order to use it while simulating. The plugin name, for the configuration, is MatrixKeyboard. You can follow this step by step guide.

Then, you must copy the MatrixKeyboard.ini file to your project and modify it to satisfy your needs. For example, given the following pin definitions:

sbit Keyboard_Scan_0 = P1^1;
sbit Keyboard_Scan_1 = P1^2;
sbit Keyboard_Scan_2 = P1^3;
sbit Keyboard_Scan_3 = P1^4;

sbit Keyboard_Return_0 = P1^5;
sbit Keyboard_Return_1 = P1^6;
sbit Keyboard_Return_2 = P1^7;

You could configure the INI file like this:

[Settings]

; All port addresses in hexadecimal
; Bits: 0-7

Scan0_Port_Address = 90
Scan0_Port_Bit = 1

Scan1_Port_Address = 90
Scan1_Port_Bit = 2

Scan2_Port_Address = 90
Scan2_Port_Bit = 3

Scan3_Port_Address = 90
Scan3_Port_Bit = 4

Return0_Port_Address = 90
Return0_Port_Bit = 5

Return1_Port_Address = 90
Return1_Port_Bit = 6

Return2_Port_Address = 90
Return2_Port_Bit = 7

If you don’t remember the port addresses, you can always check the header file corresponding to you microcontroller and look for a line like this:

sfr P1 = 0x90;

Well, that’s all. You can now run your project in simulation mode and open the plugin via Peripherals->Matrix Keyboard.

MatrixKeyboard is licensed under the GNU GPL v3 (attached)…

Finally, the downloads:

MatrixKeyboard Plugin v1.1

Download v1.1 Source Code

The source code proyect is done in Visual Studio 2008, but it can be easily adapted for other versions.

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How to install a Keil uVision peripheral plugin

NeoEGM — Mon, 03 May 2010 02:55:40 +0000

The installation of a Keil uVision plugin depends on the plugin to be installed, but it’s commonly divided in four main steps.

1- First, copy the files corresponding to the C51 directory of the Keil’s installation.

Assuming you have installed the application in C:\Keil, then the destination directory would be C:\Keil\C51.

Commonly, you just copy there the plugin DLL.

2- Copy the additional files to be used to the UV3 or UV4 directory, depending on whether you are using uVision 3 o uVision 4.

These use to be additional files used by the plugin. This should have been indicated by the plugin developer for each particular plugin.

3- Copy the needed files to each project directory. These are commonly project specific configuration files, like the ones specifying the used pins.

4- Configure the project in order to use the plugin.

In uVision, go to Project->Options for Target, and then to the Debug tab.

There, we edit the field “Parameter” which is next to “Dialog DLL”…

We add the following to the back of the text string:

-dPluginName

For example, in the case we wanted to use the Matrix Keyboard plugin, we would write, just as in the image:

-dMatrixKeyboard

That’s all, we’re ready to start the debugging mode and run our project.

NeoEGM.com » uVision

Keil uVision Plugin: Matrix Keyboard

Usage

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How to install a Keil uVision peripheral plugin

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