help with pic16f887

[lerameur]

ok knocked off this line
@ __config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_OFF & _LVP_OFF & _CP_OFF

and its only giving the warning :-Argument out of range. Least significant bits used

[mackrackit]

If I remove the "e"

lcdout $FE,1, " Appuyé sur Start "

And remove the space at
RTCYear

I2CRead SDApin,SCLpin,$D0,$00,[RTCSec,RTCMin,RTCHour,RTCWDay,RTCDay,RTCMonth,RTCY ear,RTCCtrl] 'read clock

It compiles.

[lerameur]

Hi I finally got it to compile. Now I have a small problem writing to memory. Its actually not writing. and on the LCD its always showing 0000
I have A0 and A1 to ground and A2 to 5v. on the eeprom 24LC1025, pins are configued correctly, is there anything in the program that will not allow a writing ???

'/////////////////////////
'// EEPROM  test program
'//	Using the PIC16F887
'//
'/////////////////////////

'/////////////////////////
'// Define section //
'/////////////////////////

'@ __config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_OFF & _LVP_OFF & _CP_OFF
'OSCCON = %01110000 '8 Mhz
DEFINE OSC 8
ANSELH = 0

'/////////////////////////
'// LCD configuration //
'/////////////////////////

DEFINE LCD_DREG PORTB 	' Set LCD Data port
DEFINE LCD_DBIT 4 		' Set starting Data bit (0 or 4) if 4-bit bus  RB.4, RB.5, RB.6, RB.7
DEFINE LCD_RSREG PORTB 	' Set LCD Register Select port
DEFINE LCD_RSBIT 1 		' Set LCD Register Select bit
DEFINE LCD_EREG PORTB	' Set LCD Enable port
DEFINE LCD_EBIT 0 		' Set LCD Enable bit
DEFINE LCD_BITS 4 		' Set LCD bus size (4 or 8 bits) '4 therefore put wire at 4, 5, 6 and 7 of LCD
DEFINE LCD_LINES 2 		' Set number of lines on LCD
DEFINE LCD_COMMANDUS 2500
DEFINE LCD_DATAUS 250
DEFINE CHAR_PACING 2000
pause 1000

'/////////////////////////
'// PIN configuration //
'/////////////////////////

TRISB = %00000000 ' Set PORTB to all output
TRISA = %11111111 ' Set PORTA to all input
TRISC = %11000000 ' Set PORTC to all output


'///////////////////////////////////////////////
'// Variable Declaration and initialization //
'///////////////////////////////////////////////

Battery_Switch var byte
i var byte
j var byte
Battery_Charge_Counter var byte


SDApin var PORTC.4                     ' RTC data 
SCLpin var PORTC.3                     ' RTC clock
bat var byte
Write_Address var byte

RTCSec var byte :RTCMin var byte :RTCHour var byte :RTCWDay var byte :RTCDay var byte :RTCMonth var byte :RTCYear var byte :RTCCtrl var byte 


lcdout $FE,1, "Bienvenue"
lcdout $FE,$C0, "Welcome" 
pause 1500

I2CWRITE SDApin,SCLpin,$A0,$00,[$03,$02,$05,$00,$00,$00,$00,$00] ' Write to  memory
   pause 20
   


'////////////////////////////////////////////////////
'////////////////// PROGRAM /////////////////////////
'////////////////////////////////////////////////////

Mainloop:

	lcdout $FE,1, "Appuye sur Record"
	lcdout $FE,$C0, "ou sur Show"
	pause 200
	

 
if PORTC.7 =0 then      'always 5v, push button to gnd
			j=1

			I2CRead SDApin,SCLpin,$A0,$00,[RTCSec,RTCMin,RTCHour,RTCDay]
			lcdout $FE,1, "  Time ", dec j
			lcdout $FE,$C0, dec RTCDay, dec RTCHour, dec RTCMin, dec RTCSec
			pause 2000

Endif
			
goto Mainloop
End

[lerameur]

O by the way, while compiling another program, MicroCode studio does not seem to tell me where the error is unlike compiling in Picbasic pro. It only gives me this error:
least significant bits used
wow really helpful.... 600 lines of code

[lerameur]

Good morning.
Ok a good night sleep was excellent. For the first message last night I posted at 23:03, I believe I may have to play around with the registers.. SSPCON... or perhaps others.
Also, I may have to use A0 for write and A1 for read on the 24LC1025 EEPROM chip. I will try that tonight.

For the second message, I still have no idea, the compiler just tell me there is a problem somewhere in the code. There must be a way ton configure MicroCode studio to be more specific, is there ?

K

[lerameur]

Hi I copied this program from a thread. It is suppose to be working, but I keep getting zeros in on my LCD:

anyone ?

'/////////////////////////
'// EEPROM and test program
'//	Using the PIC16F887
'//
'/////////////////////////

'/////////////////////////
'// Define section //
'/////////////////////////

'@ __config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_OFF & _LVP_OFF & _CP_OFF
OSCCON = %01110000 '8 Mhz
DEFINE OSC 8
ANSELH = 0


'/////////////////////////
'// LCD configuration //
'/////////////////////////

DEFINE LCD_DREG PORTB 	' Set LCD Data port
DEFINE LCD_DBIT 4 		' Set starting Data bit (0 or 4) if 4-bit bus  RB.4, RB.5, RB.6, RB.7
DEFINE LCD_RSREG PORTB 	' Set LCD Register Select port
DEFINE LCD_RSBIT 1 		' Set LCD Register Select bit
DEFINE LCD_EREG PORTB	' Set LCD Enable port
DEFINE LCD_EBIT 0 		' Set LCD Enable bit
DEFINE LCD_BITS 4 		' Set LCD bus size (4 or 8 bits) '4 therefore put wire at 4, 5, 6 and 7 of LCD
DEFINE LCD_LINES 2 		' Set number of lines on LCD
DEFINE LCD_COMMANDUS 2500
DEFINE LCD_DATAUS 250
DEFINE CHAR_PACING 2000
pause 1000


SDA var PORTC.4                     ' RTC data 
SCL var PORTC.3                     ' RTC clock
DB0 var byte[8]

TRISB= %11111111
TRISC= %00000000
gosub write_eeprom

read_eeprom:                          ' Read time Secs,Mins,Hours,Day,Date,Month,Year,Control
I2CREAD SDA,SCL,$A1,$00,[STR DB0\8] ' Read 8 bytes from EEPROM
lcdout $fe,1,"Time=",hex2 DB0[2],":",hex2 DB0[1],":",hex2 DB0[0]    'bit 0=sec, bit 1=min, bit 2=hrs
lcdout $fe,$c0,"Date=",hex2 DB0[4],":",hex2 DB0[5],":",hex2 db0[6]  'bit 4=day, bit 5=month, bit 6=year
 pause 50
goto read_eeprom
end

Write_eeprom:                          ' Set time & date to 19:00:00  14th Feb 201
pause 1000
I2CWRITE SDA,SCL,$A0,$00,[$00,$00,$19,$7,$14,$2,$10,$80] ' Write to EEPROM
pause 10
RETURN

[lerameur]

humm
ok
from this thread:http://www.picbasic.co.uk/forum/showthread.php?t=12671
The huy has a pic16F887 like mine, but his SDA and SCL are on portB2 and B1... My datasheet tells me C4 and C3......