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Forum Index : Microcontroller and PC projects : TOUCH(DOWN) Problem

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PhilTilson
Newbie

Joined: 15/11/2015
Location: United Kingdom
Posts: 35
Posted: 07:17pm 19 Nov 2018
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I have a very odd problem - which I am sure the gurus on this forum will easily explain!

I am getting to grips with the Touch side of the MM+ and have a simple routine to detect a touch and change the colour of a character under the touch point.

This works fine for individual touches. I then wanted to add a couple of lines so that, while the touch was present, the routine was run continuously in order to allow a 'swipe' across the characters. The relevant part of the code is this:
sub PenDown
do
if touch(y)>159 and touch(y)<168 then
xx%=int((touch(x)-169)/6)*6+170
text xx%,160,";","LMN",8,1,rgb(yellow)
end if
loop if touch(down)
end sub

As soon as I touch the relevant part of the screen, I get the following message on the console:



This one has me stumped! I have tried rewriting the line in case a stray character got in there somehow, but it still does the same thing. Without the do-loop, all is fine.

Any thoughts?
 
TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6283
Posted: 08:50pm 19 Nov 2018
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try
LOOP UNTIL

or Do WHILE

Jim
VK7JH
MMedit
 
PhilTilson
Newbie

Joined: 15/11/2015
Location: United Kingdom
Posts: 35
Posted: 10:45pm 19 Nov 2018
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You are right, of course, Jim that I was using the wrong construction for my DO-WHILE loop. Now that I have corrected that, the program runs.

However, I still don't understand the error message! where did the 'å' come from?
 
TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6283
Posted: 11:44pm 19 Nov 2018
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  PhilTilson said  
However, I still don't understand the error message! where did the 'å' come from?

Keywords get tokenised. I expect that 'å' is the token for TOUCH

Glad it's working now.
Jim
VK7JH
MMedit
 
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