Counting led blinks..

[mackrackit]

Well, I am not sure why your code is not working on PORTC.3 and PORTC.4. I just tried it here and it is running. The code I used is below.

Port A. Did you turn the analog off? ADC

You have to use an 18Fxx with SDFS as LONG variables are needed.

' 16F877A RTC
' 10/30/2011
DEFINE OSC 4
#CONFIG
    __config _HS_OSC & _WDT_ON & _LVP_OFF & _CP_OFF
#ENDCONFIG


LED     VAR PORTB.5
TX      VAR PORTD.1  ' DATA SEND PIN
BAUD    CON 18030	' 18030 = 600 BAUD


'RTC pins on 877a
SDA	Var	PORTC.4
SCL	Var	PORTC.3


' Allocate variables
RTCYear	Var	Byte
RTCMonth Var Byte
RTCDate	Var	Byte
RTCDay	Var	Byte
RTCHour	Var	Byte
RTCMin	Var	Byte
RTCSec	Var	Byte
RTCCtrl Var	Byte


TRISC= %11111111
CMCON = %00000111                   


' Set initial time 
	RTCYear = $10
	RTCMonth = $03
	RTCDate = $23
	RTCDay = $02
	RTCHour = $19
	RTCMin = $35
	RTCSec = 0
	RTCCtrl = 0
	
'Gosub set		' Set the time


Goto mainloop		' Skip over subroutines


' Subroutine to write time to RTC
set:
	I2CWrite SDA,SCL,$D0,$00,[RTCSec,RTCMin,RTCHour,RTCDay,RTCDate,RTCMonth,RTCYear,RTCCtrl]
	Return


' Subroutine to read time from RTC
gettime:
	I2CRead SDA,SCL,$D0,$00,[RTCSec,RTCMin,RTCHour,RTCDay,RTCDate,RTCMonth,RTCYear,RTCCtrl]
	Return


mainloop:
	Gosub gettime		' Read the time from the RTC
    TOGGLE LED
    SEROUT2 TX, BAUD,["Date:",  hex2 RTCDate, "/",hex2 RTCMonth, "/" , hex2 RTCYear,13]
    SEROUT2 TX, BAUD,["Time:", hex2 RTCHour, ":", hex2 RTCMin, ":", hex2 RTCSec,13]


'    Lcdout $fe, 128,"Date:",  hex2 RTCDate, "/",hex2 RTCMonth, "/" , hex2 RTCYear
'	Lcdout $fe, $c0, "Time:", hex2 RTCHour, ":", hex2 RTCMin, ":", hex2 RTCSec


	Pause 500
	GOTO mainloop

[tacbanon]

okay I think I know whats the problem, I found out that one my file I'm working has this code ADCON1 = %00001111 ' A/D converter off...which is different from the file I post. So this means I have to work on 18F.

thanks again,
tacbanon

[tacbanon]

Hi, in the PIC pins and registers for SD/MMC card

SD_WE        Var    PORTA.4    ' SD card write protect
SD_WE_TRIS    Var    TRISA.4    ' SD card write protect direction
SDI        Var    PORTB.0    ' SPI data in
SDI_TRIS    Var    TRISB.0    ' SPI data in direction
SCL        Var    PORTB.1    ' SPI clock
SCL_TRIS    Var    TRISB.1    ' SPI clock direction
SD_CS        Var    PORTB.3    ' SD card chip select
SD_CS_TRIS    Var    TRISB.3    ' SD card chip select direction
SD_CD        Var    PORTB.4    ' SD card detect
SD_CD_TRIS    Var    TRISB.4    ' SD card detect direction
SDO        Var    PORTC.7    ' SPI data out
SDO_TRIS    Var    TRISC.7    ' SPI data out direction

PortB.0. PortB.1,PortB.3 and PortB.4 is already in use by a keypad, can I move it to PortD instead?
Like this...

SD_WE        Var    PORTA.4    ' SD card write protect
SD_WE_TRIS    Var    TRISA.4    ' SD card write protect direction
SDI        Var    PORTD.0    ' SPI data in
SDI_TRIS    Var    TRISD.0    ' SPI data in direction
SCL        Var    PORTD.1    ' SPI clock
SCL_TRIS    Var    TRISD.1    ' SPI clock direction
SD_CS        Var    PORTD.3    ' SD card chip select
SD_CS_TRIS    Var    TRISD.3    ' SD card chip select direction
SD_CD        Var    PORTD.4    ' SD card detect
SD_CD_TRIS    Var    TRISD.4    ' SD card detect direction
SDO        Var    PORTC.7    ' SPI data out
SDO_TRIS    Var    TRISC.7    ' SPI data out direction

Regards,
tacbanon

[mackrackit]

That should not be a problem.

[tacbanon]

Hi, before I change to my desired pins, I made a test(using the original code)...but gives me this "Init: 6 1 255". I don't understand the code I used for testing works before.
Do you know what's causing it?

regards,
tacbanon

[mackrackit]

Open the SDFS file and look at the CE_xxx .
Your card did not initialize. Could be lots of things from a loose wire to a bad card. Bad as in file format corrupt to just wore out.
If the connections are good see if the card can be read in a PC, check the format.

[tacbanon]

Oh my, I think I broke my sdcard module. I double checked the wires I'm using and I reconnect and disconnect them to the devboard more than 10 times still the same result. The SDCard is okay (its in FAT format). I remembered I connect it to PortB earlier the same port where the keypad is also connected. this could have ruin the module...