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Newbie need help - EDB-Board and LCD

 
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mr_tembo

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Joined: 29 May 2006
Posts: 5

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PostPosted: Wed Jun 14, 2006 1:18 pm    Post subject: Newbie need help - EDB-Board and LCD Reply with quote

Hi,

we had buy the "edb" board to learn some.
The Sample file we had flash, but the LCD show nothing.
We think we must change some settings in "Options/Compiler/LCD" , but we dont know what:

The source code show like this:

$regfile = "m32def.dat"
$crystal = 38400
Do
Locate 1 , 1 : Lcd "Hello World "
Loop
End

We do not use a m32 processor we have a m88. so please help us.

Greetings Michael
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Frankeman

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Joined: 11 Aug 2004
Posts: 945
Location: the Netherlands

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PostPosted: Wed Jun 14, 2006 3:50 pm    Post subject: Reply with quote

Hi and welcome to this friendly forum.

In your little test code there are four mistakes:
1 the regfile is wrong
2 the crystal frequency is wrong
3 the do..loop is not needed
4 the type and connection of the lcd is not given
Code:

$regfile = "m88def.dat"
$crystal = 3840000
Config Lcdpin = Pin , Db4 = Porta.4 , Db5 = Porta.5 , Db6 = Porta.6 , Db7 = Porta.7 , E = Portc.7 , Rs = Portc.6
Config Lcd = 16 * 2              

Locate 1 , 1
Lcd "Hello World "

End
 

You have to change the Config lines for the display type and connection.

Frank.
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mr_tembo

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Joined: 29 May 2006
Posts: 5

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PostPosted: Wed Jun 14, 2006 5:04 pm    Post subject: Reply with quote

Hi Frank,

thanks for your Reply. We had make exact your Sample. Now we got from the Compiler the following Message:

In Line 8 ("End")

Error 40 Variable can not be used with RESET (PORTA) ,in File...LCDTEST:BAS
Error 40 Variable can not be used with RESET (PORTA) ,in File...LCDTEST:BAS
Error 41 Variable can not be used with SET (PORTA) ,in File...LCDTEST:BAS
Error 41 Variable can not be used with SET (PORTA) ,in File...LCDTEST:BAS

----------------------------------------------------------------------------
$regfile = "m88def.dat"
$crystal = 3840000
Config Lcdpin = Pin , Db4 = Porta.4 , Db5 = Porta.5 , Db6 = Porta.6 , Db7 = Porta.7 , E = Portc.7 , Rs = Portc.6
Config Lcd = 16 * 2

Locate 1 , 1
Lcd "Hello World."
End 'end program

Whats he want from us. Question

Michael
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mr_tembo

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Joined: 29 May 2006
Posts: 5

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PostPosted: Wed Jun 14, 2006 6:22 pm    Post subject: news to the problem Reply with quote

i had change the $regfile to "m23def.dat", after this in the simulator its work and no errors, but not at the boartd (ok normal) if we change back to

$regfile = "m88def.dat"

we got all the errors again...

Sad

Please help us...
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Frankeman

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Joined: 11 Aug 2004
Posts: 945
Location: the Netherlands

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PostPosted: Wed Jun 14, 2006 9:46 pm    Post subject: Reply with quote

This is because the m88 has no port A.
Change the "Config lcdpin" so that the portpin assignments are correct for your case.

ps
With the $crystal you set the frequency which the m88 is running.
34800 is a common baudrate and not a frequency.
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mr_tembo

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Joined: 29 May 2006
Posts: 5

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PostPosted: Thu Jun 15, 2006 8:58 am    Post subject: Reply with quote

Strike, with this setting it work fine:

Config Lcdpin = Pin , Db4 = Portb.2 , Db5 = Portb.3 , Db6 = Portb.4 , Db7 = Portb.5 , E = Portb.1 , Rs = Portb.0


Thanks for your info.

greetings michael
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albertsm

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Joined: 09 Apr 2004
Posts: 5071
Location: Holland

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PostPosted: Tue Jun 20, 2006 11:53 pm    Post subject: Reply with quote

Hi,

On the EDB CD you will find many samples.
And the LCD samples contain the proper CONFIG LCD lines.

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