RS232 serial commands

[pxidr84]

try something like that

        DEFINE OSC 40      
        DEFINE HSER_RCSTA 90h 
        DEFINE HSER_TXSTA 20h 
        DEFINE HSER_BAUD 9600
        DEFINE HSER_SPBRG 64
    
Start:        
        Hserout ["Program has started.",13,10] 
        gosub LookForStart
        Goto Start

LookForStart:
        HSERIN 5000,noData,[WAIT ("start")] 
        hserout ["Got it! Backlight ON",13,10]
        Return
 
nodata:
        HSEROUT ["NOPE... Life's so cruel...",13,10]
        Return

Thanks!

HSERIN command remind me the BUTTON command (with the label).

So I use this :

DEFINE OSC 40      
DEFINE LCD_DREG PORTD
DEFINE LCD_EREG PORTB
DEFINE LCD_RSREG PORTB
DEFINE LCD_EBIT 6
DEFINE LCD_RSBIT 7
DEFINE ADC_BITS 10
DEFINE HSER_RCSTA 90h 
DEFINE HSER_TXSTA 20h 
DEFINE HSER_BAUD 9600
DEFINE HSER_SPBRG 64

Hserout ["Varidrive V2011.00 has started"] 
 
mainlp:        
      
LCDOUT $fe,2,"Main loop"
        
HSERIN ret,[WAIT ("blon")] 
       HIGH PORTD.4
ret:

HSERIN ret1,[WAIT ("bloff")] 
       LOW PORTD.4
ret1:

Goto mainlp

And it works flawlessly.

However, when I type "blonn" instead of "blon", the backlight is activated.
Same thing with "blofffff" instead off "bloff", the backlight is disabled.

So I need a stop bit or something like that?