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DS90UH940-Q1: 480P out issue ?

PYTsai
Genius 11495 points
Part Number: DS90UH940-Q1

Hi 

We are using DS90UH940 to connect DS90UH949. At 949 side it take in 720P video. 

At 949 side we see correctly 27 MHz the pixel clock but at 940 side the pixel clock become 53 MHZ.

Would you help review our register dump of 940 and 949 attached below, and help advise where might went wrong ?

940 register dump as below 

Fullscreen TI940_reg_data.txt Download 
[REGISTERS]
Device = ALP Nano 1 - DS90UB940, Connector 1
Comments = ""
Date = 10/20/2020
Time = 19:13:33
Reg = 0,0x0000,0x68
Reg = 0,0x0001,0x04
Reg = 0,0x0002,0x00
Reg = 0,0x0003,0xF8
Reg = 0,0x0004,0xFE
Reg = 0,0x0005,0x1E
Reg = 0,0x0006,0x00
Reg = 0,0x0007,0x24
Reg = 0,0x0008,0x00
Reg = 0,0x0009,0x00
Reg = 0,0x000A,0x00
Reg = 0,0x000B,0x00
Reg = 0,0x000C,0x00
Reg = 0,0x000D,0x00
Reg = 0,0x000E,0x00
Reg = 0,0x000F,0x00
Reg = 0,0x0010,0x00
Reg = 0,0x0011,0x00
Reg = 0,0x0012,0x00
Reg = 0,0x0013,0x00
Reg = 0,0x0014,0x00
Reg = 0,0x0015,0x00
Reg = 0,0x0016,0x00
Reg = 0,0x0017,0x00
Reg = 0,0x0018,0x00
Reg = 0,0x0019,0x01
Reg = 0,0x001A,0x00
Reg = 0,0x001B,0xF4
Reg = 0,0x001C,0x33
Reg = 0,0x001D,0x40
Reg = 0,0x001E,0x00
Reg = 0,0x001F,0x00
Reg = 0,0x0020,0x00
Reg = 0,0x0021,0x00
Reg = 0,0x0022,0x00
Reg = 0,0x0023,0x20
Reg = 0,0x0024,0x08
Reg = 0,0x0025,0x00
Reg = 0,0x0026,0x83
Reg = 0,0x0027,0x84
Reg = 0,0x0028,0x01
Reg = 0,0x0029,0x00
Reg = 0,0x002A,0x00
Reg = 0,0x002B,0x00
Reg = 0,0x002C,0x00
Reg = 0,0x002D,0x00
Reg = 0,0x002E,0x00
Reg = 0,0x002F,0x00
Reg = 0,0x0030,0x00
Reg = 0,0x0031,0x00
Reg = 0,0x0032,0x90
Reg = 0,0x0033,0x25
Reg = 0,0x0034,0x0C
Reg = 0,0x0035,0x00
Reg = 0,0x0036,0x00
Reg = 0,0x0037,0x88
Reg = 0,0x0038,0x00
Reg = 0,0x0039,0x02
Reg = 0,0x003A,0x00
Reg = 0,0x003B,0x03
Reg = 0,0x003C,0x20
Reg = 0,0x003D,0xC0
Reg = 0,0x003E,0x23
Reg = 0,0x003F,0x00
Reg = 0,0x0040,0x43
Reg = 0,0x0041,0x03
Reg = 0,0x0042,0x03
Reg = 0,0x0043,0x00
Reg = 0,0x0044,0x60
Reg = 0,0x0045,0x88
Reg = 0,0x0046,0x00
Reg = 0,0x0047,0x00
Reg = 0,0x0048,0x0F
Reg = 0,0x0049,0x00
Reg = 0,0x004A,0x00
Reg = 0,0x004B,0x08
Reg = 0,0x004C,0x00
Reg = 0,0x004D,0x00
Reg = 0,0x004E,0x63
Reg = 0,0x004F,0x00
Reg = 0,0x0050,0x03
Reg = 0,0x0051,0x10
Reg = 0,0x0052,0x00
Reg = 0,0x0053,0x01
Reg = 0,0x0054,0x80
Reg = 0,0x0055,0x00
Reg = 0,0x0056,0x00
Reg = 0,0x0057,0x00
Reg = 0,0x0059,0x7F
Reg = 0,0x005A,0x20
Reg = 0,0x005B,0x20
Reg = 0,0x005C,0x00
Reg = 0,0x005D,0x00
Reg = 0,0x005F,0x00
Reg = 0,0x0060,0x00
Reg = 0,0x0061,0x00
Reg = 0,0x0062,0x00
Reg = 0,0x0063,0x00
Reg = 0,0x0064,0x10
Reg = 0,0x0065,0x00
Reg = 0,0x0066,0x0D
Reg = 0,0x0067,0x19
Reg = 0,0x0068,0x30
Reg = 0,0x0069,0x87
Reg = 0,0x006A,0x00
Reg = 0,0x006B,0x00
Reg = 0,0x006C,0x16
Reg = 0,0x006D,0x03
Reg = 0,0x006E,0x00
Reg = 0,0x006F,0x00
Reg = 0,0x0070,0x00
Reg = 0,0x0071,0x00
Reg = 0,0x0072,0x00
Reg = 0,0x0073,0x07
Reg = 0,0x0074,0x07
Reg = 0,0x0075,0x08
Reg = 0,0x0076,0x00
Reg = 0,0x0077,0x00
Reg = 0,0x0078,0x00
Reg = 0,0x0079,0x00
Reg = 0,0x007A,0x00
Reg = 0,0x007B,0x00
Reg = 0,0x007C,0x02
Reg = 0,0x0080,0x4B
Reg = 0,0x0081,0x25
Reg = 0,0x0082,0xDB
Reg = 0,0x0083,0x49
Reg = 0,0x0084,0xA6
Reg = 0,0x0090,0x2D
Reg = 0,0x0091,0xD5
Reg = 0,0x0092,0x96
Reg = 0,0x0093,0x49
Reg = 0,0x0094,0x74
Reg = 0,0x0098,0xED
Reg = 0,0x0099,0xC3
Reg = 0,0x009A,0x5E
Reg = 0,0x009B,0xE6
Reg = 0,0x009C,0x82
Reg = 0,0x009D,0x99
Reg = 0,0x009E,0x20
Reg = 0,0x009F,0xB2
Reg = 0,0x00A1,0x00
Reg = 0,0x00A2,0x7D
Reg = 0,0x00C0,0x04
Reg = 0,0x00C1,0x00
Reg = 0,0x00C4,0x01
Reg = 0,0x00C5,0x00
Reg = 0,0x00C8,0xC0
Reg = 0,0x00C9,0x00
Reg = 0,0x00CA,0x00
Reg = 0,0x00CB,0x00
Reg = 0,0x00CC,0x00
Reg = 0,0x00E0,0x00
Reg = 0,0x00E1,0x00
Reg = 0,0x00E2,0x00
Reg = 0,0x00E3,0x00
Reg = 0,0x00E8,0x01
Reg = 0,0x00E9,0x00
Reg = 0,0x00EA,0x00
Reg = 0,0x00F0,0x5F
Reg = 0,0x00F1,0x55
Reg = 0,0x00F2,0x48
Reg = 0,0x00F3,0x39
Reg = 0,0x00F4,0x34
Reg = 0,0x00F5,0x30
Reg = 0,0x00F6,0x00
Reg = 0,0x00F8,0x00
Reg = 0,0x00F9,0x00

949 register dump as below 

Fullscreen TI949_reg_data.txt Download 
[REGISTERS]
Device = ALP Nano 1 - DS90UH949, Connector 1
Comments = ""
Date = 10/20/2020
Time = 19:15:24
Reg = 0,0x0000,0x24
Reg = 0,0x0001,0x00
Reg = 0,0x0003,0xD2
Reg = 0,0x0004,0x80
Reg = 0,0x0005,0x00
Reg = 0,0x0006,0x68
Reg = 0,0x0007,0x00
Reg = 0,0x0008,0x00
Reg = 0,0x0009,0x00
Reg = 0,0x000A,0xCE
Reg = 0,0x000B,0x37
Reg = 0,0x000C,0x07
Reg = 0,0x000D,0x20
Reg = 0,0x000E,0x00
Reg = 0,0x000F,0x00
Reg = 0,0x0010,0x00
Reg = 0,0x0011,0x00
Reg = 0,0x0012,0x00
Reg = 0,0x0013,0x88
Reg = 0,0x0014,0x00
Reg = 0,0x0015,0x01
Reg = 0,0x0016,0x02
Reg = 0,0x0017,0x1E
Reg = 0,0x0018,0x00
Reg = 0,0x0019,0x7F
Reg = 0,0x001A,0x01
Reg = 0,0x001B,0x00
Reg = 0,0x001C,0x00
Reg = 0,0x001D,0x00
Reg = 0,0x001E,0x01
Reg = 0,0x001F,0xF5
Reg = 0,0x0020,0x0B
Reg = 0,0x0021,0x00
Reg = 0,0x0022,0x25
Reg = 0,0x0023,0x00
Reg = 0,0x0024,0x00
Reg = 0,0x0025,0x00
Reg = 0,0x0026,0x00
Reg = 0,0x0027,0x00
Reg = 0,0x0028,0x01
Reg = 0,0x0029,0x20
Reg = 0,0x002A,0x20
Reg = 0,0x002B,0x9C
Reg = 0,0x002C,0x00
Reg = 0,0x0030,0x00
Reg = 0,0x0031,0x00
Reg = 0,0x0032,0x00
Reg = 0,0x0033,0x00
Reg = 0,0x0034,0x0C
Reg = 0,0x0035,0x00
Reg = 0,0x0036,0x00
Reg = 0,0x0037,0x00
Reg = 0,0x0038,0x00
Reg = 0,0x0039,0x00
Reg = 0,0x003A,0x00
Reg = 0,0x003B,0x00
Reg = 0,0x003C,0x00
Reg = 0,0x003D,0x00
Reg = 0,0x003E,0x00
Reg = 0,0x003F,0x00
Reg = 0,0x0040,0x14
Reg = 0,0x0041,0x4B
Reg = 0,0x0042,0x00
Reg = 0,0x0043,0x00
Reg = 0,0x0044,0x80
Reg = 0,0x0045,0x00
Reg = 0,0x0046,0x00
Reg = 0,0x0047,0x00
Reg = 0,0x0048,0x0D
Reg = 0,0x0049,0x00
Reg = 0,0x004A,0x01
Reg = 0,0x004B,0x0F
Reg = 0,0x004C,0x00
Reg = 0,0x004D,0x00
Reg = 0,0x004E,0x00
Reg = 0,0x004F,0x00
Reg = 0,0x0050,0x97
Reg = 0,0x0051,0xA1
Reg = 0,0x0052,0x1E
Reg = 0,0x0053,0x00
Reg = 0,0x0054,0x20
Reg = 0,0x0055,0x0C
Reg = 0,0x0056,0x3F
Reg = 0,0x0057,0x00
Reg = 0,0x0058,0x00
Reg = 0,0x0059,0x00
Reg = 0,0x005A,0xDD
Reg = 0,0x005B,0x00
Reg = 0,0x005C,0x02
Reg = 0,0x005D,0x06
Reg = 0,0x005E,0x44
Reg = 0,0x005F,0x1B
Reg = 0,0x0060,0x22
Reg = 0,0x0061,0x02
Reg = 0,0x0062,0x00
Reg = 0,0x0064,0x10
Reg = 0,0x0065,0x00
Reg = 0,0x0066,0x00
Reg = 0,0x0067,0x00
Reg = 0,0x0068,0x00
Reg = 0,0x0069,0x00
Reg = 0,0x006A,0x00
Reg = 0,0x006B,0x00
Reg = 0,0x006C,0x00
Reg = 0,0x0070,0x00
Reg = 0,0x0071,0x00
Reg = 0,0x0072,0x00
Reg = 0,0x0073,0x00
Reg = 0,0x0074,0x00
Reg = 0,0x0075,0x00
Reg = 0,0x0076,0x00
Reg = 0,0x0077,0x00
Reg = 0,0x0078,0x00
Reg = 0,0x0079,0x00
Reg = 0,0x007A,0x00
Reg = 0,0x007B,0x00
Reg = 0,0x007C,0x00
Reg = 0,0x007D,0x00
Reg = 0,0x00F9,0x00

the resolution capture by analog launch pad see it become 1440 x 480 

  • 0
    TI__Mastermind 36940 points

    Hi PY,

    Are you trying to get the pattern generator outputting to the display for 1920x720? Do you want to display from 940 patgen or from 949 to 940. If it is, you need to do this on the serializer side UB949 by selecting the timing source "Internal" and HD 720P 60Hz.

    Let me know if you have further questions.

    Aaron