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ADV7393 Recommended for New Designs
The ADV7390 / ADV7391 / ADV7392 / ADV7393 are a family of high speed, digital-to-analog video encoders on single monolithic chips. Three 2.7 V/3...
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ADV7393 proper output not coming.

		
	
				

			

									
					    Vanshika07
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on May 25, 2026 
				
			
			
		

		
		                     
				
        		

		    
		    		    

		      		            		        
Category: Software

    		        		            		    
Product Number:  ADV7393  

    		        		    		    

		    		    
		    			

			    
Hii,
I am using ADV7393 encoder to convert RGB565 to analog out on STM32MP257FAK3 custom board.
I am using RGB565 input which is 16 bit RGB in SD mode.
The resolution I am setting is 720x288 progressive with these timings:




 mode->clock = 27000; 


 mode->hdisplay = 720;


 mode->hsync_start = 732;


 mode->hsync_end = 795;


 mode->htotal = 864;


 mode->vdisplay = 288; 


 mode->vsync_start = 289; 


 mode->vsync_end = 292; 


 mode->vtotal = 312; 

The output coming is 
 

My register settings are:
=== ADV7393 Full Register Dump ===
 --- Basic Mode Registers ---
 reg0x00 = 0x1c
 reg0x01 = 0x30
 reg0x02 = 0x00
 reg0x03 = 0x03
 reg0x04 = 0xf0
 reg0x05 = 0x4e
 reg0x06 = 0x0e
 reg0x07 = 0x24
 reg0x08 = 0x92
 reg0x09 = 0x7c
 reg0x0a = 0x00
 reg0x0b = 0x00
 reg0x0c = 0x00
 reg0x0d = 0x00
 reg0x0e = 0x00
 reg0x0f = 0x00
 --- Status Registers ---
 reg0x10 = 0x00
 reg0x11 = 0x1b
 reg0x12 = 0xa7
 reg0x13 = 0x00
 reg0x14 = 0x00
 reg0x15 = 0x20
 reg0x16 = 0x5f
 reg0x17 = 0x00
 --- HD Mode Registers ---
 reg0x30 = 0x3c
 reg0x31 = 0x01
 reg0x32 = 0x00
 reg0x33 = 0xec
 reg0x34 = 0x08
 reg0x35 = 0x00
 reg0x36 = 0xa0
 reg0x37 = 0x80
 --- SD Mode Registers ---
 reg0x80 = 0x65
 reg0x81 = 0x00
 reg0x82 = 0xc3
 reg0x83 = 0x00
 reg0x84 = 0x8a
 reg0x85 = 0x00
 reg0x86 = 0x00
 reg0x87 = 0x80
 reg0x88 = 0x10
 reg0x89 = 0x00
 reg0x8a = 0x0c
 reg0x8b = 0x00
 reg0x8c = 0xcb
 reg0x8d = 0x8a
 reg0x8e = 0x09
 reg0x8f = 0x2a
 --- SD Timing & Misc ---
 reg0x90 = 0x00
 reg0x91 = 0x00
 reg0x92 = 0x00
 reg0x93 = 0x00
 reg0x94 = 0x00
 reg0x95 = 0x00
 reg0x96 = 0x00
 reg0x97 = 0x00
 reg0x98 = 0x00
 reg0x99 = 0x10
 reg0x9a = 0x00
 reg0x9b = 0x00
 reg0x9c = 0x00
 reg0x9d = 0x00
 reg0x9e = 0x00
 reg0x9f = 0x00
 --- Hue & Brightness ---
 reg0xa0 = 0x80
 reg0xa1 = 0x00
 reg0xa2 = 0x00
 reg0xa3 = 0x00
 reg0xa4 = 0x00
 reg0xa5 = 0x00

I have also tried Table 93, 94 and 95.
Can you check this data and let me know what is the problem and how to resolve it and make it work. I can also go for 720x576 if needed interlaced or progressive.



			

			
									
		                                 
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