Led Moving message code - inverting the direction

[Codeman]

moving message code

Hi,

I'm designing and programming a LED moving message panel.

I'm using shif registers of course to shift the message out.

When I scroll in the same "direction" of the shift registers (the shifts are "pushed") everything works. But I need advice to scroll in the opsite direction. I try to invert the loop, but I only get the message inverted, not the direction.

Anyone with experience in this can help me please?

Thanks in advance

Joaquim

 

[sau_sol]

led moving message

which loop ??

please give the code for reference so some one can check that

 

[Codeman]

Re: Led Moving message code

Thanks for the awnser

Here is a sample code ( Bascom)

The Anodes of the Leds are at VCC, the cathodes to the shift registers. Not multiplexed.

  Do
  Outstring = ">>>>>>>>"
  Gosub Processoutstring    'This procedure transform the message in a bit array
  For A = 1 To Outarraycounter ' Arraycounter is the lenght of array
     Shiftout So , Ck , Outarray(a) , 2 , 8  'Shifout the bits one column at a time
     Gosub Latch  'Latch the shifted bits
     Set OE     ' Output Enable   (Turn On Leds)  
     Waitms 12    
     Reset OE  'Output Disable (Turn off Leds)    
     Waitms 4
   Next A
  If Execute = 0 Then Exit Do  'Exit the loop
 Loop

When Invert the loop I mean start from the end of the array and go to the beggining.

The bit array is organised in columns not in rows

Thanks