Newbie need help - EDB-Board and LCD

mr_tembo · Joined: 29 May 2006 Posts: 5

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

Frankeman · Joined: 11 Aug 2004 Posts: 948 Location: the Netherlands

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

mr_tembo · Joined: 29 May 2006 Posts: 5

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

mr_tembo · Joined: 29 May 2006 Posts: 5

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...

Frankeman · Joined: 11 Aug 2004 Posts: 948 Location: the Netherlands

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.

mr_tembo · Joined: 29 May 2006 Posts: 5

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

albertsm · Joined: 09 Apr 2004 Posts: 5922 Location: Holland

Hi,

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