27977 Backlight problems

ocean bill

My code is in a loop with other subroutines. When I turn the backlight on (SEROUT TxPin, Baud19200, [$11], the light and displayed text work as expected. However, when the LCD routine is entered again (see attachment), the LCD does not light again and sometimes the text is not displayed. Other problems and erratic behavior or observed. Hopefully you can help.
Ocean Bill

HIGH TxPin ' Set pin high to be a serial port
PAUSE 100 ' Pause for Serial LCD to initialize
SEROUT TxPin, Baud19200, [$0C,$16] ' display cleared, cursor off
SEROUT TxPin, Baud19200, [$11] ' Turns backlight on (causes problems)
SEROUT TxPin, Baud19200, [DEC TempC/100,".", DEC TempC//100," C Sample ", DEC AvgCtr +1]
PAUSE 500

Gadgetman

Please use the (CODE) tags when entering program code

  HIGH TxPin                                              ' Set pin high to be a serial port
  PAUSE 100                                              ' Pause for Serial LCD to initialize
  SEROUT TxPin, Baud19200, [$0C,$16]       ' display cleared, cursor off
  SEROUT TxPin, Baud19200, [$11]              ' Turns backlight on  (causes problems)
  SEROUT TxPin, Baud19200, [DEC TempC/100,".", DEC TempC//100," C Sample ", DEC AvgCtr +1]
  PAUSE 500

Makes it much more readable...

What are you using to power this setup?