Graphical Displays with PBP3

[rocket_troy]

I've isolated the problem is somewhere within the "show" call. Not sure what it is, but that's definitely the issue. Also, I'm not totally convinced FILLRECT works properly either. DRAWRECT definitely works better for me.

Troy

[richard]

post your code and i will have a look
it works ok for me

https://youtu.be/Jxd4a4XmuDo

'****************************************************************
'*  Name    : UNTITLED.BAS                                      *
'*  Author  : richard                                           *
'*  Notice  : Copyright (c) 2022 caveat emptor                  *
'*          : All Rights Reserved                               *
'*  Date    : 11/10/2022                                        *
'*  Version : 1.0                                               *
'*  Notes   :                                                   *
'*          :                                                   *
'****************************************************************
#CONFIG
  CONFIG  FOSC = INTIO67
  CONFIG  PLLCFG = ON
  CONFIG  PRICLKEN = ON
  CONFIG  FCMEN = OFF
  CONFIG  IESO = OFF
  CONFIG  PWRTEN = ON
  CONFIG  BOREN = SBORDIS
  CONFIG  BORV = 190
  CONFIG  WDTEN = OFF
  CONFIG  WDTPS = 32768
  CONFIG  CCP2MX = PORTC1
  CONFIG  PBADEN = OFF
  CONFIG  CCP3MX = PORTB5
  CONFIG  T3CMX = PORTC0
  CONFIG  HFOFST = ON
  CONFIG  P2BMX = PORTB5
  CONFIG  MCLRE = EXTMCLR
  CONFIG  STVREN = ON
  CONFIG  LVP = OFF
  CONFIG  XINST = OFF
  CONFIG  DEBUG = OFF
  CONFIG  CP0 = OFF
  CONFIG  CP1 = OFF
  CONFIG  CP2 = OFF
  CONFIG  CP3 = OFF
  CONFIG  CPB = OFF
  CONFIG  CPD = OFF
  CONFIG  WRT0 = OFF
  CONFIG  WRT1 = OFF
  CONFIG  WRT2 = OFF
  CONFIG  WRT3 = OFF
  CONFIG  WRTC = OFF
  CONFIG  WRTB = OFF
  CONFIG  WRTD = OFF
  CONFIG  EBTR0 = OFF
  CONFIG  EBTR1 = OFF
  CONFIG  EBTR2 = OFF
  CONFIG  EBTR3 = OFF
  CONFIG  EBTRB = OFF
#ENDCONFIG
    




     DEFINE OSC 64
    DEFINE DEBUG_REG PORTB
    DEFINE DEBUG_BIT 7
    DEFINE DEBUG_BAUD 9600
    DEFINE DEBUG_MODE 0
    LATB.7=1


   
    #DEFINE colours 1   ;1 mono 2 rg or 3 rgb
    width  con 128      ;
    height con 64      ;
    'use serial i/f
    #define  stserial 1
    include "grx.pbpMOD" 
    include "st7920.pbpmod" 
    include "font.bas"
    include "bignum.bas"       
    include "bigchr.bas"
    BUFF       VAR BYTE[32]
    OSCCON=$70
    OSCTUNE.6=1
    while ! osccon2.7 :WEND    ;wait for pll
    ANSELB=0
    ANSELC=0
    ANSELA=0 
'      serial   spi pins used
'      e is sck        latc.3
'      rw is sdo       latc.5
'      rs is cs         latc.1
    'trisc = %11010101 ;cs,sck,sdo are output
    trisc = %11010101 ;cs,sck,sdo are output
    TRISB = %11111111
    TRISA = %11111111


              
    n var word


    gosub st7920_init    'graphic mode


    OSCCON=$70
    OSCTUNE.6=1
    while ! osccon2.7 :WEND    ;wait for pll
    
    ANSELB=0
    ANSELC=0
    ANSELA=0 
    
    Pause  500      ' LCD initialize time
    lcdout $FE,1
    gosub st7920_init    'graphic mode
    gosub grf_clr
    n=0
    SETFONT bignum
    bgcolour=0
    
 main:   
    n= n+1
    colour=1
    fillrect 39,29,46,16 ; this is a guess about your font size
    ARRAYWRITE BUFF,[dec4 n,0]
    DMDSTR 40,30, Buff,0
    colour=0
    fillrect 39,9,46,16 ; this is a guess about your font size    
    DMDSTR 40,10, Buff,1
    gosub show 
    pause 1000
    
 goto main

[rocket_troy]

Damn, maybe its my display modules. Your latest code doesn't appear to work properly either on mine.

So close... everything appears to display correctly* but craps itself after a few screen redraws

Troy

*with the exception of FILLRECT

[richard]

i fiddle with the files to suit other projects maybe what you have is out of date

[rocket_troy]

No luck. There is something I should've mentioned though: in post #31 you list the pin connections:

for a 26k22 i used
'spi pins used
'st7920_rst var latc.0
st7920_cs var latc.1
'st7920_sck is latc.3
'st7920_sdi is latc.4
'st7920_sdo is latc.5

Now, I don't have "st7920_sdi is latc.4" connected because I have no idea what to connect it to. Could that be the killer?

Troy

[richard]

no it has no connection , but its best not to try and use that pin for other purposes the mssp module owns it
the only other conn i have is psb is grounded
are you using my exact code ?

[rocket_troy]

Yeah, started out with the exact code, those latest graphics and LCD controller files and then (after running that) started tweaking the demo code in an attempt to get something working. Can post a video of the output if that helps or happy to send you a module if you're interested in trying one. I've ordered another flavour of st7920 controlled displays from China, so fingers crossed it's better behaved.

Troy