© MCS Electronics, 1995-2007

CONFIG INPUT

Action

Instruct the compiler to modify serial input line terminator behaviour

Syntax

CONFIG INPUT = term , ECHO=echo

Remarks

The 'term' parameter specifies which character(s) are expected to terminate the INPUT statement with serial communication. It has no impact on the DOS file system INPUT.

In most cases, when you press <ENTER> , a cariage return(ASCII 13) will be sent. In some cases, a line feed (LF) will also be sent after the CR. It depends on the terminal emulator or serial communication OCX control you use.

The 'echo' parameter specifies which character(s) are send back to the terminal emulator after the iNPUT terminator is received. By default CR and LF is sent. But you can specify which characters are sent. This can be differnt characters then the 'term characters. So when you send in your VB application a string, and end it with a CR, you can send back a LF only when you want.

When NOECHO is used, no characters are sent back even while configured with CONFIG INPUT

See also

INPUT

ASM

NONE

Example

Config Input0 = CR , Echo = CRLF

Dim S as String * 20

Input "Hello ",s

CONFIG INTx

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The first chip supported was T6963C. There are also driver for other LCD's such as SED and KS0108. The most popular LCD's will be supported with a custom driver.

The following connections were used for the T6963C:

PORTA.0 to PORTA.7 to DB0-DB7 of the LCD

PORTC.5 to FS, font select of LCD

PORTC.2 to CE, chip enable of LCD

PORTC.3 to CD, code/data select of LCD

PORTC.0 to WR of LCD, write

PORTC.1 to RD of LCD, read

PORTC.4 to RESET of LCD, reset LCD

The LCD used from www.conrad.de needs a negative voltage for the contrast.

Two 9V batteries were used with a pot meter.

Some displays have a Vout that can be used for the contrast(Vo)

The T6963C displays have both a graphical area and a text area. They can be used together. The routines use the XOR mode to display both text and graphics layered over each other.

The statements that can be used with the graphicalLCD are :

CLS, will clear the graphic display and the text display

CLS GRAPH will clear only the graphic part of the display

CLS TEXT will only clear the text part of the display

LOCATE row,column Will place the cursor at the specified row and column

The row may vary from 1 to 16 and the column from 1 to 40. This depends on the size and

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mode of the display.

CURSOR ON/OFF BLINK/NOBLINK can be used the same way as for text displays.

LCD can be handled the same way as for text displays.

SHOWPIC X, Y , Label where X and Y are the column and row and Labelis the label where the picture info is placed.

PSET X, Y , color Will set or reset a pixel. X can range from 0-239 and Y from 9-63. When color is 0 the pixel will turned off. When it is 1 the pixel will be set on.

$BGF "file.bgf" 'inserts a BGF file at the current location

LINE(x0,y0) – (x1,y1) , color Will draw a line from the coordinate x0,y0 to x1,y1.

Color must be 0 to clear the line and 255 for a black line.

The Graphic routines are located in the glib.lib or glib.lbx files.

You can hard wire the FS and RESET and change the code from the glib.lib file so these pins can be used for other tasks.

COLOR LCD

Color displays were always relatively expensive. The mobile phone market changed that. And Display3000.com , sorted out how to connect these small nice colorfull displays. You can buy brand new Color displays from Display3000. MCS Electronics offers the same displays.

There are two different chip sets used. One chipset is from EPSON and the other from Philips. For this reason there are two different libraries. When you select the wrong one it will not work, but you will not damage anything.

LCD-EPSON.LBX need to be used with the EPSONchipset. LCD-PCF8833.LBX need to be used with the Philips chipset.

Config Graphlcd = Color , Controlport = Portc , Cs = 1 , Rs = 0 , Scl = 3 , Sda = 2

Controlport The port that is used to control the pins. PORTA, PORTB, etc.

As the color display does not have a built in font, you need to generate the fonts yourself. You can use the Fonteditor for this task.

A number of statements accept a color parameter. See the samples below in bold.

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See also

SHOWPIC , PSET , $BGF , LINE , LCD

Example

'First we define that we use a graphic LCD ' Only 240*64 supported yet

Config Graphlcd = 240 * 128 , Dataport = Porta , Controlport = Portc , Ce = 2 , Cd = 3 , Wr = 0 , Rd = 1 , Reset = 4 , Fs = 5 , Mode = 8

'The dataport is the portname that is connected to the data lines of the LCD 'The controlport is the portname which pins are used to control the lcd 'CE, CD etc. are the pin number of the CONTROLPORT.

' For example CE =2 because it is connected to PORTC.2

'mode 8 gives 240 / 8 = 30 columns , mode=6 gives 240 / 6 = 40 columns

'Dim variables (y not used)

Dim X As Byte , Y As Byte

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'Clear the screen will both clear text and graph display

Cls

'Other options are :

' CLS TEXT to clear only the text display ' CLS GRAPH to clear only the graphical part

Cursor Off

Wait 1

'locate works like the normal LCD locate statement ' LOCATE LINE,COLUMN LINE can be 1-8 and column 0-30

Locate 1 , 1

'Show some text

Lcd "MCS Electronics"

'And some othe text on line 2 Locate 2 , 1 : Lcd "T6963c support"

Locate 3 , 1 : Lcd "1234567890123456789012345678901234567890" Locate 16 , 1 : Lcd "write this to the lower line"

Wait 2

Cls Text

Wait 2

'draw a line using PSET X,Y, ON/OFF

'PSET on.off param is 0 to clear a pixel and any other value to turn it on For X = 0 To 140

'circle time

'circle(X,Y), radius, color

'X,y is the middle of the circle,color must be 255 to show a pixel and 0 to clear a pixel

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