Trying to get LCD to work on 18f45k22 and portB and EasyPic V7 - no luck

Hi,
I have tried everything I can think of to get this to work...anybody got any ideas what I am doing wrong or a missed setting?

Thanks Don


@ __CONFIG _CONFIG1H, _IESO_OFF_1H & _FCMEN_OFF_1H & _PRICLKEN_ON_1H & _PLLCFG_ON_1H & _FOSC_ECMPIO6_1H
@ __CONFIG _CONFIG2L, _PWRTEN_OFF_2L & _BOREN_SBORDIS_2L & _BORV_190_2L
@ __CONFIG _CONFIG2H, _WDTPS_32768_2H & _WDTEN_OFF_2H
@ __CONFIG _CONFIG3H, _MCLRE_EXTMCLR_3H & _T3CMX_PORTB5_3H & _HFOFST_ON_3H & _CCP3MX_PORTB5_3H & _PBADEN_OFF_3H & _CCP2MX_PORTC1_3H
@ __CONFIG _CONFIG4L, _DEBUG_OFF_4L & _XINST_OFF_4L & _LVP_OFF_4L & _STVREN_ON_4L
@ __CONFIG _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L & _CP2_OFF_5L & _CP3_OFF_5L
@ __CONFIG _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
@ __CONFIG _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L & _WRT2_OFF_6L & _WRT3_OFF_6L
@ __CONFIG _CONFIG6H, _WRTC_OFF_6H & _WRTB_OFF_6H & _WRTD_OFF_6H
@ __CONFIG _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L & _EBTR2_OFF_7L & _EBTR3_OFF_7L
@ __CONFIG _CONFIG7H, _EBTRB_OFF_7H
'************************************************* ***************
DEFINE LCD_DREG PORTB
DEFINE LCD_DBIT 0
DEFINE LCD_EREG PORTB
DEFINE LCD_EBIT 5
DEFINE LCD_RSREG PORTB
DEFINE LCD_RSBIT 4
Define LCD_Bits 4
DEFINE LCD_LINES 2
Define LCD_Commandus 2000
Define LCD_DATAUS 50

ANSELB = %00000000
TRISB = %00000000


pause 500
LCDOUT $FE,1,"Hello"

END

Quote:

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_PLLCFG_ON_1H & _FOSC_ECMPIO6_1H

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what sort of external clock are you using ?
@ what freq ?

you have no define OSC

TRISB = %00000000 is unnecessary for lcd

Hi Richard,

I am using an 8mhz ext. crystal..

Richard,

This code is written in Mikro Basic I think and works...I was trying to convert it to PicBasic..

Below it I have pasted the Config file that goes with it..

' *
' * Project name:
' Lcd_Test (Demonstration of the LCD library routines)
' * Copyright:
' (c) Mikroelektronika, 2011.
' * Revision History:
' 20110929:
' - initial release (FJ);
' * Description:
' This code demonstrates how to use LCD 4-bit library. LCD is first
' initialized, then some text is written, then the text is moved.
' * Test configuration:
' MCU: PIC18F45K22
' http://ww1.microchip.com/downloads/e...Doc/41412D.pdf
' Dev.Board: EasyPIC7 - ac:LCD
' http://www.mikroe.com/easypic/
' Oscillator: HS-PLL 32.0000 MHz, 8.0000 MHz Crystal
' Ext. Modules: Character Lcd 2x16
' http://www.mikroe.com/store/components/various/
' SW: mikroBasic PRO for PIC
' http://www.mikroe.com/mikrobasic/pic/
' * NOTES:
' - Turn on Lcd backlight switch SW4.6. (board specific)
' *

program Lcd

' Lcd module connections
dim LCD_RS as sbit at LATB4_bit
LCD_EN as sbit at LATB5_bit
LCD_D4 as sbit at LATB0_bit
LCD_D5 as sbit at LATB1_bit
LCD_D6 as sbit at LATB2_bit
LCD_D7 as sbit at LATB3_bit

dim LCD_RS_Direction as sbit at TRISB4_bit
LCD_EN_Direction as sbit at TRISB5_bit
LCD_D4_Direction as sbit at TRISB0_bit
LCD_D5_Direction as sbit at TRISB1_bit
LCD_D6_Direction as sbit at TRISB2_bit
LCD_D7_Direction as sbit at TRISB3_bit
' End Lcd module connections

dim txt1 as char[16]
txt2 as char[9]
txt3 as char[8]
txt4 as char[7]
i as byte ' Loop variable

sub procedure Move_Delay() ' Function used for text moving
Delay_ms(500) ' You can change the moving speed here
end sub

main:
ANSELB = 0 ' Configure PORTB pins as digital

txt1 = "mikroElektronika"
txt2 = "EasyPIC7"
txt3 = "Lcd4bit"
txt4 = "example"

Lcd_Init() ' Initialize Lcd
Lcd_Cmd(_LCD_CLEAR) ' Clear display
Lcd_Cmd(_LCD_CURSOR_OFF) ' Cursor off
Lcd_Out(1,6,txt3) ' Write text in first row
Lcd_Out(2,6,txt4) ' Write text in second row
Delay_ms(2000)
Lcd_Cmd(_LCD_CLEAR) ' Clear display4

Lcd_Out(1,1,txt1) ' Write text in first row
Lcd_Out(2,5,txt2) ' Write text in second row
Delay_ms(500)

' Moving text
for i=0 to 3 ' Move text to the right 4 times
Lcd_Cmd(_LCD_SHIFT_RIGHT)
Move_Delay()
next i

while TRUE ' Endless loop
for i=0 to 7 ' Move text to the left 8 times
Lcd_Cmd(_LCD_SHIFT_LEFT)
Move_Delay()
next i

for i=0 to 7 ' Move text to the right 8 times
Lcd_Cmd(_LCD_SHIFT_RIGHT)
Move_Delay()
next i
wend
end.

The config file...

<?xml version="1.0"?>
<MCU_DEVICE_FLAGS>
<DEVICE>
<DEVICE_NAME>P18F45K22</DEVICE_NAME>
<VALUE>
<COUNT>11</COUNT>
<VALUE0>
<VAL>$300001:$0033</VAL>
</VALUE0>
<VALUE1>
<VAL>$300002:$001F</VAL>
</VALUE1>
<VALUE2>
<VAL>$300003:$003C</VAL>
</VALUE2>
<VALUE3>
<VAL>$300005:$00BD</VAL>
</VALUE3>
<VALUE4>
<VAL>$300006:$0081</VAL>
</VALUE4>
<VALUE5>
<VAL>$300008:$000F</VAL>
</VALUE5>
<VALUE6>
<VAL>$300009:$00C0</VAL>
</VALUE6>
<VALUE7>
<VAL>$30000A:$000F</VAL>
</VALUE7>
<VALUE8>
<VAL>$30000B:$00E0</VAL>
</VALUE8>
<VALUE9>
<VAL>$30000C:$000F</VAL>
</VALUE9>
<VALUE10>
<VAL>$30000D:$0040</VAL>
</VALUE10>
</VALUE>
</DEVICE>
</MCU_DEVICE_FLAGS>

your config is incorrect for those settings

Code:

---

ASM
  __config  _CONFIG1H, _FOSC_HSHP_1H & _PLLCFG_ON_1H & _PRICLKEN_OFF_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
  __config  _CONFIG2L, _PWRTEN_OFF_2L & _BOREN_SBORDIS_2L & _BORV_190_2L
  __config  _CONFIG2H, _WDTEN_ON_2H & _WDTPS_32768_2H
  __config  _CONFIG3H, _CCP2MX_PORTC1_3H & _PBADEN_OFF_3H & _CCP3MX_PORTB5_3H & _HFOFST_ON_3H & _T3CMX_PORTC0_3H & _P2BMX_PORTD2_3H & _MCLRE_EXTMCLR_3H
  __config  _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
  __config  _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L & _CP2_OFF_5L & _CP3_OFF_5L
  __config  _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
  __config  _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L & _WRT2_OFF_6L & _WRT3_OFF_6L
  __config  _CONFIG6H, _WRTC_OFF_6H & _WRTB_OFF_6H & _WRTD_OFF_6H
  __config  _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L & _EBTR2_OFF_7L & _EBTR3_OFF_7L
  __config  _CONFIG7H, _EBTRB_OFF_7H
ENDASM

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and you need a


define OSC 32

statement in your code

why use a xtal ? why run at 8MHz ?
when the chip has a int osc that can do 64mhz

Well that worked fine.....
Well the board has a crystal hook up but can be strapped in and out.
I did try just the define osc 32 with my config and it also worked...
as you probably surmised, I am pretty much a newbie..so why the ocs 32 define and say not 16 or 8?

By the way thanks a bunch

define OSC 32
tells the compiler to perform all timing calculations for a clock speed of 32 MHz
it defaults to 4 MHz if omitted , it should match the real clock speed used
using 8 or 16 is simply wrong


_PLLCFG_ON with a 8mhz xtal yields a 32 MHz clock

no point guessing read the manual, read the data sheet

Soif I was using an internal oscillator, I would define it in Config1h and further in OSCCON?

Quote:

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using an internal oscillator, I would define it in Config1h and further in OSCCON?

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yes

not forgetting if and when the pll is engaged
and setting define OSC appropriately

there is a tool called meconfig , look it up and download a copy , it makes life easier.
pity is that melabs don't update things much anymore so newer chips are missing , its still useful though

Ok Richard Thank you but it looks like meconfig is not anywhere.. at least I couldn't find it to download..I will keep looking but ME labs has a posting that is discontinued and end of life....

Quote:

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I couldn't find it to download.

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me either, thats a shame . i better not have another pc crash or that may be the end of it


welcome to the Death Spiral of legacy software

seems the spiral is tightening

What is the chance you could email me a copy?

ok , the install file is only 1900k bytes, but too big to post
pm me your email and I can send it


ps
maybe one of the moderators could upload it to Darrel's central repository , its his work after all

meConfig install that is

I guess I don't know how to pm..lol

Quote:

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Originally Posted by dbachman

I guess I don't know how to pm..lol

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Like this Don