Unable to Compile lcd.c

[William Meade]

I am using a 2x16 display and a 16F877 and trying to run the ex_lcdkb.c program which uses the lcd.c. When I compile the program I get the following error.

"Unknown Type" and the word boolean is highlighted.

code snippet:
PRE

// As defined in the following structure the pin connection is as follows:
// D0 enable
// D1 rs
// D2 rw
// D4 D4
// D5 D5
// D6 D6
// D7 D7
//
// LCD pins D0-D3 are not used and PIC D3 is not used.

// Un-comment the following define to use port B
// #define use_portb_lcd TRUE

#DEVICE PIC16f877 *=16
struct lcd_pin_map {
boolean enable; // This is where error accours
boolean rs;
boolean rw;
boolean unused;
int data : 4;
} lcd;

/PRE

What do I need to do?

Thanks
___________________________
This message was ported from CCS's old forum
Original Post ID: 13768

[Dave Yeatman]

<font face="Courier New" size=-1>This is because BOOLEAN is not a standard type in CCS C. You have to put in either #define BOOLEAN short int -or- include the 16F877.h header file as the first line. You will also have to change the current first line to #device *=16

Dave


:=I am using a 2x16 display and a 16F877 and trying to run the ex_lcdkb.c program which uses the lcd.c. When I compile the program I get the following error.
:=
:="Unknown Type" and the word boolean is highlighted.
:=
:=code snippet:
:=PRE
:=
:= // As defined in the following structure the pin connection is as follows:
:=// D0 enable
:=// D1 rs
:=// D2 rw
:=// D4 D4
:=// D5 D5
:=// D6 D6
:=// D7 D7
:=//
:=// LCD pins D0-D3 are not used and PIC D3 is not used.
:=
:=// Un-comment the following define to use port B
:=// #define use_portb_lcd TRUE
:=
:=#DEVICE PIC16f877 *=16
:=struct lcd_pin_map {
:= boolean enable; // This is where error accours
:= boolean rs;
:= boolean rw;
:= boolean unused;
:= int data : 4;
:= } lcd;
:=
:=/PRE
:=
:=What do I need to do?
:=
:=Thanks</font>
___________________________
This message was ported from CCS's old forum
Original Post ID: 13770

[R.J.Hamlett]

:=I am using a 2x16 display and a 16F877 and trying to run the ex_lcdkb.c program which uses the lcd.c. When I compile the program I get the following error.
:=
:="Unknown Type" and the word boolean is highlighted.
:=
:=code snippet:
:=PRE
:=
:= // As defined in the following structure the pin connection is as follows:
:=// D0 enable
:=// D1 rs
:=// D2 rw
:=// D4 D4
:=// D5 D5
:=// D6 D6
:=// D7 D7
:=//
:=// LCD pins D0-D3 are not used and PIC D3 is not used.
:=
:=// Un-comment the following define to use port B
:=// #define use_portb_lcd TRUE
:=
:=#DEVICE PIC16f877 *=16
:=struct lcd_pin_map {
:= boolean enable; // This is where error accours
:= boolean rs;
:= boolean rw;
:= boolean unused;
:= int data : 4;
:= } lcd;
:=
:=/PRE
:=
:=What do I need to do?
:=
:=Thanks
#include <16F877.h>

as the first line of your file.
Then do your 16 bit pointer defintion, as
#DEVICE *=16

Otherwise you will get an error saying that you cannot change the type this far into the code.
The include file, has th Boolean definition in it.

Best Wishes
___________________________
This message was ported from CCS's old forum
Original Post ID: 13771

[PCM programmer]

:=
:=/PRE
:=

Everyone else answered the main question before me, so I'll
mention one other item:

You're trying to use the PRE and /PRE tags, but they
didn't work. That's because you need to enclose them inside
"angle brackets". Here is a demo page that shows you how
to do it.
<a href="http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_pre" TARGET="_blank">http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_pre</a>
___________________________
This message was ported from CCS's old forum
Original Post ID: 13772

[whmeade10]

Thanks to everyone who responded to my question. I have the LCD working perfectly with the 16F877.

Bill
___________________________
This message was ported from CCS's old forum
Original Post ID: 13790