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ADV7623 Recommended for New Designs
ADV7623 is a high performance 4 input, 1 output, High-Definition Multimedia Interface (HDMI®) transceiver that integrates HDMI receiver and transmitter...
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ADV7623 on Analog.com

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ADV7623 scale text

		
	
				

			

									
					    JTE
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Mar 6, 2018 
				
			
			
		

		
		                     
				
        		

		    
		    		    
		    			

			    
We use the ADV7623 for superimpose textdata on the hd-video (1080p) . Runs perfect, but the
text is very small, so we tried to scale it with TBOX_V_SCALE and TBOX_H_SCALE, without success.
If we want to increase the text size, have we to change the font data??

Another problem occured: when we tried to show a sentence with more than 16 characters, we need to use

 
more "words". But how can we get the information where the first "word" ends to continue with the next one?

Thanks for your help!
Klaus

			

			
									
		                             
                        

    

                                            
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                on Mar 8, 2018 12:00 PM
            
            
						
			            		
    
		
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    Hello Poornima
    
 
    Thanks for your fast response. What do you meen with swap RAM?
    I only use the internal memory. 
    
 
    The string RAM is written dynamically ( when new measurement data are received).
    
 
    Then I write the Tbox instr. RAM and set the TBOX enable. Set the TBOX_V_SCALE and TBOX_H_SCALE
    
 
    bits an begin and end of progcode without any change. I only have the small text on OSD.

    
 
    Can you explain how I can scale it in programm code and how's the sequence?
    
 
    Thanks and kind regards
    
 
    KLaus
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on Mar 8, 2018 12:00 PM
            
            
						
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hello Poornima
    
 
    Thanks for your fast response. What do you meen with swap RAM?
    I only use the internal memory. 
    
 
    The string RAM is written dynamically ( when new measurement data are received).
    
 
    Then I write the Tbox instr. RAM and set the TBOX enable. Set the TBOX_V_SCALE and TBOX_H_SCALE
    
 
    bits an begin and end of progcode without any change. I only have the small text on OSD.

    
 
    Can you explain how I can scale it in programm code and how's the sequence?
    
 
    Thanks and kind regards
    
 
    KLaus
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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