problem in defining function in hi-tech compiler for programing in MPLAB

abhishekdixit · Jan 16, 2013

hello,
i am using MPLAB IDE with hi-tech compilers for programing of PIC18F4550 MCU. i want to make a program to write in LCD, i have made this program in 8051 and ARM MCU, but when i am using the same logic in this compiler,so i find many errors, most of the error related with defining the functions or variable, so if their any pdf or link from where i can get some examples of MPLAB IDE with hi-tech C compilers.
Thank you.

jayanth.devarayanadurga · Jan 16, 2013

Can you post you code?

abhishekdixit · Jan 17, 2013

hello jayanth,
okk if you want to check my code so i am giving you my code

Code:

#include<htc.h>
#include<string.h>
#define _XTAL_FREQ 20000000
#define RS PORTCbits.RC0
#define RW PORTCbits.RC1
#define EN PORTCbits.RC2
#define LED RA0
void lcd_cmd(unsigned char a);
void lcd_data1(unsigned char b);
//void lcd_write(unsigned char);
//unsigned char name[]="ABHISHEK";
void main()
{
	unsigned char i=0;
	TRISB=0;
	LATB=0;
	TRISC=0;
	LATC=0;
	TRISA=0;
	lcd_cmd(0x38);
	__delay_ms(10);
	lcd_cmd(0x0E);
	__delay_ms(10);
	lcd_cmd(0x06);
	__delay_ms(10);
	lcd_cmd(0x01);
	__delay_ms(10);
	
	lcd_data1('A');
	LED=1;	
		while(1);
	
}

void lcd_cmd(unsigned char a)
{
	RS=0;
	RW=0;
	LATC=a;
	EN=1;
	__delay_ms(10);
	EN=0;
}

void lcd_data1(unsigned char b)
{
	RS=1;
	RW=0;
	LATC=b;
	EN=1;
	__delay_ms(10);
	EN=0;
}

so please check my code. and give some suggestion..
Thank you

bigdogguru · Jan 17, 2013

If you use the Hitech PICC18 compiler, your code compiles fine:

Build C:\Documents and Settings\Administrator.BDG\My Documents\Projects\EDAboard\abhishekdixit\abhishekdixit for device 18F4550
Using driver C:\Program Files\HI-TECH Software\PICC-18\PRO\9.66\bin\picc18.exe

Make: The target "C:\Documents and Settings\Administrator.BDG\My Documents\Projects\EDAboard\abhishekdixit\main.p1" is up to date.
Executing: "C:\Program Files\HI-TECH Software\PICC-18\PRO\9.66\bin\picc18.exe" -oabhishekdixit.cof -mabhishekdixit.map --summary=default --output=default main.p1 --chip=18F4550 -P --runtime=default --opt=default -D__DEBUG=1 --rom=default --ram=default -g --asmlist "--errformat=Error [%n] %f; %l.%c %s" "--msgformat=Advisory[%n] %s" "--warnformat=Warning [%n] %f; %l.%c %s"
HI-TECH C PRO for the PIC18 MCU Family V9.66
Copyright (C) 1984-2011 HI-TECH SOFTWARE
Serial number: HCPIC18P-XXXXXX
Advisory[1233] Employing 18F4550 errata work-arounds:
Advisory[1234] * Corrupted fast interrupt shadow registers

Memory Summary:
Program space used E6h ( 230) of 8000h bytes ( 0.7%)
Data space used 102h ( 258) of 7A0h bytes ( 13.2%)
EEPROM space used 0h ( 0) of 100h bytes ( 0.0%)
ID Location space used 0h ( 0) of 8h nibbles ( 0.0%)
Configuration bits used 0h ( 0) of 7h words ( 0.0%)

Loaded C:\Documents and Settings\Administrator.BDG\My Documents\Projects\EDAboard\abhishekdixit\abhishekdixit.cof.

********** Build successful! **********

However, if you are using the more common Microchip C18 compiler, you'll need to make a few changes before compiling your code.

The Hitech C Compiler for PIC10/12/16 is not compatible with the PIC18F devices.

Please post the Build message log, like above, to determine the exact cause of the compiler error messages.

BigDog

jayanth.devarayanadurga · Jan 17, 2013

Can you post the error messages you are getting. Did you select picc18.exe as your compiler while creating the project or did you select mcc18.exe?

abhishekdixit · Jan 17, 2013

hello jayanth,
when i compile my code, i found such type of error given below in picture.

please find the error and give me some solution..
Thank you

- - - Updated - - -

hello bigdogguru,
thanks for helping me, but when compiled my program so the starting two lines of your messages are the same, which you have posted me.but after this i found lots of the error, so i am just sending you the picture which i have captured when i captured at the time of error. so please see it and help to compile my program..
Thank you.

bigdogguru · Jan 17, 2013

Please cut and paste the build messages rather than post a screen shot, many of the compiler switches are not visible in the image.

You are using the correct compiler, PICC18.

Did you use the project wizard and select Hi-Tech Compiler suite?

BigDog

abhishekdixit · Jan 17, 2013

yes big dog, i select the Hi-Tech Compiler suitein project wizard.
and i am pasting my error which i am facing while compiling the message.

Executing: "C:\Program Files (x86)\HI-TECH Software\PICC-18\PRO\9.65\bin\picc18.exe" --pass1 "E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c" -q --chip=18F4550 -P --runtime=default --opt=default -D__DEBUG=1 -g --asmlist "--errformat=Error [%n] %f; %l.%c %s" "--msgformat=Advisory[%n] %s" "--warnformat=Warning [%n] %f; %l.%c %s"
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 37.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 37.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 38.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 38.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 40.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 40.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 42.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 42.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 47.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 47.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 48.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 48.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 50.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 50.16 illegal conversion between types
Error [255] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 52.14 not a member of the struct/union ""
Error [182] E:\Embedded Program\PIC18F4550\LCD\lcd_pic.c; 52.16 illegal conversion between types

********** Build failed! **********

please check this.

jayanth.devarayanadurga · Jan 17, 2013

zip and post your mplab project files. Change these to LATCbits

Code:

#define RS PORTCbits.RC0
#define RW PORTCbits.RC1
#define EN PORTCbits.RC2

abhishekdixit · Jan 17, 2013

ok jayanth, i am sending yoy my program zip file.

jayanth.devarayanadurga · Jan 17, 2013

Your code compiled succesfully. I see no signals on any pins except RA0 and MCLR in proteus. Also LATXbits.xyz is not working. Are you sure your lcd code is ok?

abhishekdixit · Jan 18, 2013

hi jayanth,
of-course my code is ok. u know when tried to build the code which you have sent me, in which perhaps you add pic18f4550 library in my code, so when i build my program so it gives a error

Error [141] C:\Users\ABHISHEK\Desktop\lcd_pic.c; 2.20 can't open include file "p18f4550.h": No such file or directory

so may be is this problem is related with any other issue like missing of header file or etc?
because i didn't make any changes in code which you have given to me..

Thank you

jayanth.devarayanadurga · Jan 18, 2013

Remove that include line. It is not necessary. I just used it for testing.

Edit:

See the attached file. It is working.

abhishekdixit · Jan 18, 2013

hello jayanth,
thanks for helping me, but can you please tell me, why you used these line in your code. i mean whatis purpose to use these commands
ADCON0 = 0x00;
ADCON1 = 0b00001111;
CMCON = 0x07;

Thank you

bigdogguru · Jan 19, 2013

abhishekdixit said:
.... please tell me, canwhy you used these line in your code. i mean whatis purpose to use these commands

ADCON0 = 0x00;
ADCON1 = 0b00001111;
CMCON = 0x07;

The commands disable both the ADC inputs and comparators which also utilize the PORTA pins.

Reference: PIC18F2455/2550/4455/4550 Data Sheet, Section: 10.1 PORTA, TRISA and LATA Registers, Page: 113

Several PORTA pins are multiplexed with analog inputs,
the analog VREF+ and VREF- inputs and the comparator
voltage reference output. The operation of pins RA5
and RA3:RA0 as A/D converter inputs is selected by
clearing/setting the control bits in the ADCON1 register
(A/D Control Register 1).

Note: On a Power-on Reset, RA5 and RA3:RA0
are configured as analog inputs and read
as ‘0’. RA4 is configured as a digital input.

Code:

CLRF PORTA 		; Initialize PORTA by
				; clearing output
				; data latches
CLRF LATA 			; Alternate method
				; to clear output
				; data latches
MOVLW 0Fh 		; Configure A/D
MOVWF ADCON1 	; for digital inputs
MOVLW 07h 		; Configure comparators
MOVWF CMCON 		; for digital input
MOVLW 0CFh 		; Value used to
				; initialize data
				; direction
MOVWF TRISA 		; Set RA<3:0> as inputs
				; RA<5:4> as outputs

BigDog

abhishekdixit · Jan 20, 2013

hello big dog,
now i am facing a new problem in compiling the code, when i run my code then after build the code it build successfully just like that

but now when i rebuild my program, it gives lots of error like this

due to this i am unable to run this program on proteus

so please help me, why this is happening...
Thank you.

jayanth.devarayanadurga · Jan 20, 2013

Did you use my code. The problem is related to RS, RW, and EN defines. What are your defines? Did you try my code?

abhishekdixit · Jan 20, 2013

hello jayanth,
yes ofcourse, i hav used your code. but still its not working..

jayanth.devarayanadurga · Jan 20, 2013

Try reinstalling your compiler.

abhishekdixit · Jan 20, 2013

hello jayanath,
i tried a simple port toggle code on my existing compiler,so its working fine. but when i try this lcd code, its gives that error which i describe in my previous post. so it means that its not fault of my compiler....

problem in defining function in hi-tech compiler for programing in MPLAB

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