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ktomecek
Joined: 21 May 2007
Posts: 4
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Posted: 21 May 2007, 19:34 PM Post subject: ZX-1281 Demo Software |
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Hello folks. I just got my ZX-1281. It looks great! I only wish there was a demo I could run on it to confirm it is alive and well (make the Led's flash, or something). The IDE sees it and properly identifies it. But I would like some confirmation. Any ideas?
Thanks,
Karl Tomecek |
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dkinzer Site Admin
Joined: 03 Sep 2005
Posts: 2499
Location: Portland, OR
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Posted: 21 May 2007, 22:37 PM Post subject: |
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The ZX-1281 Development board doesn't have any LEDs to flash but you can write a program that does some simple things. For example, if you have an oscilloscope or logic analyzer you could create a simple program that toggles an I/O pin. The code below will toggle bit 0 of Port F, for example. You could connect an LED/resistor combination between +5 and pin to get a visual effect but you'll need to put a Delay() call in the loop. This will be easier if you have a solderless breadboard and you've installed the SIP sockets in the dev board.
| Code: | Const pin as Byte = F.0
Sub Main()
Dim state as Byte
state = 0
Do
Call PutPin(pin, state)
state = state Xor 1
Loop
End Sub
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The program below is similar to that which is installed on the ZX-1281 prior to it being shipped. If you uncomment the external RAM configuration option you'll see that it reports a larger RAM size (assuming that the "disable" jumper is not in place).
| Code: | 'Option ExtRamConfig On
Dim b as Byte
Dim id(1 to 10) as Byte
Dim idStr as String
Sub Main()
Dim j as Integer
Call System.DeviceID(id)
For j = 1 to UBound(id)
If (id(j) = 0) Then
j = j - 1
Exit For
End if
Next j
If (j >= UBound(id)) Then
j = 6
End If
idStr = MakeString(id.DataAddress, j)
j = 0
Debug.Print "RAM Size = "; CStr(Register.RamSize)
Do
Call Hello(j)
j = (j + 1) And 1
Loop
End Sub
Sub Hello(ByVal idx as Integer)
If (idx = 0) Then
Debug.Print idStr; " says..."
Else
Debug.Print " Hello, world"
End If
Call Delay(1.0)
End Sub |
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ktomecek
Joined: 21 May 2007
Posts: 4
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Posted: 21 May 2007, 23:12 PM Post subject: |
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Don,
That was perfect! Just what the doctor ordered. Explained a lot (without you realizing it!).
Thanks for the kickstart....
Regards,
Karl |
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joelmock
Joined: 23 May 2007
Posts: 3
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Posted: 23 May 2007, 18:19 PM Post subject: ZX-1281 Demo Code |
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When I attempt to run the sample code listed:
Const pin as Byte = F.0
Sub Main()
Dim state as Byte
state = 0
Do
Call PutPin(pin, state)
state = state Xor 1
Loop
End Sub
I get the following error:
myproj.bas:1: Error: reference to undefined identifier "F.0"
1 error.
Any ideas? |
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ktomecek
Joined: 21 May 2007
Posts: 4
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Posted: 23 May 2007, 18:29 PM Post subject: |
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Joel,
I am certainly no expert on this, but the reason is you have to click on Options, then Device Options and make sure the target device is set to ZX-1281.
Regards,
Karl |
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dkinzer Site Admin
Joined: 03 Sep 2005
Posts: 2499
Location: Portland, OR
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Posted: 23 May 2007, 18:33 PM Post subject: Re: ZX-1281 Demo Code |
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| joelmock wrote: | I get the following error:
| Code: | | myproj.bas:1: Error: reference to undefined identifier "F.0" |
Any ideas? |
Most likely, this is because the wrong ZX device is selected as the target. The default target device is the ZX-24. It has no port F so the reference F.0 is invalid.
If you are using the IDE, you select the target device using the dialog reached by selecting "Device Options..." from the Options menu. I suspect that if you select ZX-1281 as the target device the error no longer occur. |
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