SSD1306 INCLUDE for PBP3

[MUC]

Hello,

I need help getting this to work. My oled display does not respond at all and appears off. I'm running the sd1306_demo_16.pbp program. Everything compiles fine. I'm using a 16F1619. Here is what I've tried so far.

1. I tried both the old and newer i2c.inc files
2. Confirmed the oled works by using it on an Arduino
3. Confirmed the proper oled address with the Arduino (0x3C). I made the change in the demo.pbp file
4. Ran blink LED program on the PIC16F1619 to verify functionality
5. Tried at lower 4Mhz clock speed
6. Checked Clock and Data pins with scope to make sure data was being output to the display, it is
7. Tried two other oled

I'm not sure what else to try. I've never used an include file before so maybe I'm doing something wrong. I put all the include files and font files in the same folder as the .pbp file location.

 '****************************************************************
'*  Name    : ssd1306_DEMO.PBP                                   *
'*  Author  : richard                                            *
'*  Notice  :                                                    *
'*          :                                                    *
'*  Date    : 19/11/2017                                         *
'*  Version :                                                    *
'*  Notes   :                                                    *
'*          :FOR pic 16F1619             SSD1306                 *
'****************************************************************
#CONFIG
    __config _CONFIG1,  _FOSC_INTOSC & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _BOREN_ON & _CLKOUTEN_OFF & _IESO_OFF & _FCMEN_OFF
    __config _CONFIG2,  _WRT_OFF & _PPS1WAY_OFF & _ZCD_OFF & _PLLEN_OFF & _STVREN_ON & _BORV_HI & _LVP_ON
    __config _CONFIG3,  _WDTCPS_WDTCPS6 & _WDTE_OFF & _WDTCWS_WDTCWS100 & _WDTCCS_LFINTOSC
#ENDCONFIG


define      OSC             32
'define      OSC             4
 
; --- *** Oscillator  *** ---------------------------------------------------
OSCCON = %11110000           ;32 MHz, 
'OSCCON = %01101000           ;4 MHz, 
ANSELb = 0
ANSELA = 0
ANSELC = 0

char var byte
x    var byte  
y    var byte    
BUFF VAR BYTE[16]
;use this define for hw i2c 
;#define hwi2c 1 
#DEFINE PIC16 1 
;set and uncomment these to use softi2c
SCL var PortB.6      ' I2C Clock PICpin 11
SDA var PortB.4      ' I2C Data PICpin 13

;set these  to match display
ssdheight con 7      ; 7 = 8 PAGES  64*128 ,  3 = 4 pages 32*128
ssdwidth  con 127    ; 128 PIXELS WIDE
'sdd1306_addr con $78
sdd1306_addr con $3C
Include "ssd1306_I2C.INC"  ' bring it in
include "font7x5_16.bas"
'==========================    MAIN  Routine    ==============================

gosub glcd_init
BIG_TEXT = 0


looper:
    GLCD_CLR
    GLCDDHL 0,0,75,1       ;x,y,len,patten
    GLCDDHL 0,2,75,128
    GLCDDVL 0,0,3           ;x,y,height [in pages]
    GLCDDVL 75,0,3
    ;GLCDSTR  5,1,"--SSD1306--"   ;x,y, cont string    PIC 18 ONLY
    ARRAYWRITE BUFF,["--SSD1306--",0]
    GLCDSTR  5,1,BUFF
    ARRAYWRITE BUFF,["ABCDEF",0]
    CHAR="!"
    GLCDC 100,1,CHAR             ;x,y , chr
    BIG_TEXT = 1
    if ssdheight > 3  then
        GLCDSTR  2,4,BUFF
        ARRAYWRITE BUFF,["@12456-=#",0]
        BIG_TEXT = 0
        GLCDSTR  2,7,BUFF          ;x,y ,str buffer [null terminated]
    else
        pause 1000
        GLCD_CLR
        GLCDSTR  2,0,BUFF
        ARRAYWRITE BUFF,["@12456-=#",0]
        BIG_TEXT = 0
        GLCDSTR  2,3,BUFF
    endif
    PAUSE 3000
GOTO looper

END

[richard]

3. Confirmed the proper oled address with the Arduino (0x3C). I made the change in the demo.pbp file

arduino use a 7 bit address pbp uses an 8 bit addresss , correct address to use is (arduino address)<<1
0x3c<<1 = 0x78

[MUC]

thanks Richard,

I had no idea. I changed the address back to 0x78 just now and I still don't get anything on the screen. I get this ASM Warning in the results window after compiling. Not sure if it matters

[ASM WARNING] SD1306_DEMO_16.ASM (400) : Found label after column 1. (GLCD_BAR?CCBWC)
[ASM WARNING] SD1306_DEMO_16.ASM (432) : Found label after column 1. (GLCD_BAR?CCBWC)

[richard]

I get this ASM Warning in the results window after compiling. Not sure if it matters

[ASM WARNING] SD1306_DEMO_16.ASM (400) : Found label after column 1. (GLCD_BAR?CCBWC)
[ASM WARNING] SD1306_DEMO_16.ASM (432) : Found label after column 1. (GLCD_BAR?CCBWC)

it does matter, it means you are not compiling the code you posted.
Found label after column 1 means the macro you are trying to compile does not exist.

the GLCD_BAR usercommand does not exist in the original include it was added to for louis' setup and only a small subset of input var combinations are
catered for. i have not tested the added code and am not sure what louis wound up with.

get the demo working first

[MUC]

thanks, I went back and used the original ssd1306_I2C.inc. Now no warning when I compile. With no changes to the demo I still can't get anything to show on the oled. To make sure the oled hardware is still good I just checked it with the arduino and it's working fine. I've triple checked my wiring and don't see any mistakes.

[richard]

i havent used one of those displays for some time ,my other demo for a pic16f1619 used the mssp i2c module
try this ,it worked on my curiosity board , plugged straight in to click socket

 '****************************************************************
'*  Name    : ssd1306_DEMO.PBP                                   *
'*  Author  : richard                                            *
'*  Notice  :                                                    *
'*          :                                                    *
'*  Date    : 19/11/2017                                         *
'*  Version :                                                    *
'*  Notes   : plugs into click port note !!!!sda/scl     swapped on click skt*
'*          :FOR pic 16F1619             SSD1306                 *
'****************************************************************
#CONFIG
    __config _CONFIG1,  _FOSC_INTOSC & _PWRTE_OFF & _MCLRE_ON & _CP_OFF & _BOREN_ON & _CLKOUTEN_OFF & _IESO_OFF & _FCMEN_OFF
    __config _CONFIG2,  _WRT_OFF & _PPS1WAY_OFF & _ZCD_OFF & _PLLEN_OFF & _STVREN_ON & _BORV_HI & _LVP_ON
    __config _CONFIG3,  _WDTCPS_WDTCPS6 & _WDTE_OFF & _WDTCWS_WDTCWS100 & _WDTCCS_LFINTOSC
#ENDCONFIG




define      OSC             32


 
; --- *** Oscillator  *** ---------------------------------------------------
OSCCON = %11110000           ;32 MHz, 
ANSELb = 0
ANSELA = 0
ANSELC = 0


char var byte
x    var byte  
y    var byte    
BUFF VAR BYTE[16]
;use this define for hw i2c 
#define hwi2c 1 
#DEFINE PIC16 1 
;set and uncomment these to use softi2c
'SCL var PortB.4      ' I2C Clock
'SDA var PortB.6      ' I2C Data
RB VAR WORD
;set these  to match display
ssdheight con 7      ; 7 = 8 PAGES  64*128 ,  3 = 4 pages 32*128
ssdwidth  con 127    ; 128 PIXELS WIDE
sdd1306_addr con $78
Include "ssd1306_I2C.INC"  ' bring it in
include "font7x5_16.bas"
'==========================    MAIN  Routine    ==============================
TRISB = $F0;
PPSLOCK = $55;
PPSLOCK = $AA;
PPSLOCK = 0 ;     unlock PPS
SSPCLKPPS = $0C;   //RB4->MSSP:SCL;
SSPDATPPS = $0E;   //RB6->MSSP:SDA;
RB6PPS = $11;   //RB6->MSSP:SDA;
RB4PPS = $10;   //RB4->MSSP:SCL;
PPSLOCK = $55;
PPSLOCK = $AA;
PPSLOCK = 1; ; lock PPS   


gosub glcd_init
GLCD_CLR
BIG_TEXT = 0
ARRAYWRITE BUFF,["READY",0]
GLCDSTR 10,1,BUFF

[MUC]

unfortunately I don't get anything on the oled