Help! use PBP246 for PIC18F2525
We have tried to transfer from PIC16F to PIC18F2525. When we evaluated the PIC2525 with code to diaplay something in LCD,we failed:
coded in PICBasic ;
compiled using PBP246+MPLab V8;
The machine code did not work, there is nothing in LCD, but if we programm in ASM directly,it works.
And, if we embeded ASM lines into PicBasic lines,it didn't work either!
We have studied the PBP246 & PIC18F2525 for a long time,but no advance.
Anyone faced this kind of question too before?
Any advice is welcome!
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Anyone use pbp246 over PIC2525 ?
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Code used in PBP?Originally Posted by dragon
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For what i remind, PBP2.46 & PIC18F2525 worked for me. As Skimask says, just post your code here.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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Yes it works.
I know for a fact it works as I have a display board with 3 MAX6957's burning away right now with an 18f2525@ 20Mhz. I migrated from a 16f876 and had a few setup issues with registers but it went reasonably well.
Hope this helps..
"It will never happen here!" just happened here.
My thoughts and prayers for Sandy Hook victims and families.
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Thanks,try once more, if failed I will post the test code.
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test code
DEFINE OSC 8
DEFINE LCD_DREG PORTA
DEFINE LCD_DBIT 0
DEFINE LCD_EREG PORTA
DEFINE LCD_EBIT 4
DEFINE LCD_RSREG PORTA
DEFINE LCD_RSBIT 5
DEFINE LCD_BITS 4
DEFINE LCD_LINES 2
DEFINE LCD_COMMANDUS 4000
DEFINE LCD_DATAUS 100
CMCON = 7
ADCON1 = 6
TRISA = %11000000
PAUSE 5000
loop:
Lcdout $fe, 1 ' Clear LCD screen
Lcdout "Hello" ' Display Hello
Pause 1000 ' Wait .5 second
Lcdout $fe, 1 ' Clear LCD screen
Lcdout "World"
Pause 1000 ' Wait .5 second
Goto loop ' Do it forever
End
Last edited by dragon; - 23rd December 2007 at 02:38.
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it doesn't work! please help! thanks
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Then study more you must...
In your case...
Port A, Bit 0-3 = data bits for LCD
Port A, bit 4 = e for LCD
Port A, bit 5 = rs for LCD
ADCON1 = 6
According to the datasheet I've got...
You've set up: ADCON1 = %0000110
Vref+/Vref- on Vdd/Vss...
AN9-AN12 = digital, AN8-AN0 = analog...
Do ya see any important information up there?
Page 224 of Microchip datasheet DS39626D...
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thanks! the problem has solved.
CMCON should be defined correct value.
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Skimask,Thank you very much for kindly explaination.
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