DS90UB949-Q1: DS90UB949-Q1

Daksha Naik

Part Number: DS90UB949-Q1
Other Parts Discussed in Thread: ALP

I'm using a custom DS90UB949 board with a DS90UB948 EVM board. I got the 949 and 948 Evaluation kits to work over HDMI. When I try the same register setting for my custom 949 board, the pattern generator works but the HDMI input does not. No issues with hardware. VTERM is 3.3V, the differential pairs are connected well, 5V HDMI signal is detected, INTB and REMINTB are pulled up to 1.8V, DDC pulled up to 5V.

Register Data Name
0x0000 0x18 I2C Device ID
0x0001 0x00 Reset
0x0003 0xDA General Configuration
0x0004 0x80 Mode Select
0x0005 0x00 I2C Master Config
0x0006 0x78 DES ID
0x0007 0xA0 SlaveID[0]
0x0008 0xB0 SlaveAlias[0]
0x0009 0x00 Reserved
0x000A 0x54 Back Channel CRC Errors
0x000B 0x00 Back Channel CRC Errors
0x000C 0x03 General Status
0x000D 0x20 GPIO[0] Config
0x000E 0x00 GPIO[1] and GPIO[2] Config
0x000F 0x00 GPIO[3] Config
0x0010 0x00 GPIO[5] and GPIO[6] Config
0x0011 0x00 GPIO[7] and GPIO[8] Config
0x0012 0x00 Datapath Control
0x0013 0xA8 General Purpose Control
0x0014 0x00 BIST and DOPL Control
0x0015 0x01 I2C_VSELECT
0x0016 0xFE BCC Watchdog Control
0x0017 0x1E I2C Control
0x0018 0x7F SCL High Time
0x0019 0x7F SCL Low Time
0x001A 0x01 Datapath Control 2
0x001B 0x00 BIST BC Error Count
0x001C 0x00 GPI Pin Status 1
0x001D 0x00 GPI Pin Status 2
0x001E 0x05 TX_PORT_SEL
0x001F 0xF5 Frequency Counter
0x0020 0x0B Deserializer Capabilities 1
0x0021 0x00 Deserializer Capabilities 2
0x0022 0x25 Reserved
0x0023 0x00 Reserved
0x0024 0x00 Reserved
0x0025 0x00 Reserved
0x0026 0x00 Link Detect Control
0x0027 0x00 Reserved
0x0028 0x01 Reserved
0x0029 0x20 Reserved
0x002A 0x20 Reserved
0x002B 0xB0 Reserved
0x002C 0x00 Reserved
0x0030 0x00 SCLK_CTRL
0x0031 0x00 AUDIO_CTS0
0x0032 0x00 AUDIO_CTS1
0x0033 0x00 AUDIO_CTS2
0x0034 0x00 AUDIO_N0
0x0035 0x00 AUDIO_N1
0x0036 0x00 AUDIO_N2_COEFF
0x0037 0x00 CLK_CLEAN_STS
0x0038 0x00 Reserved
0x0039 0x00 Reserved
0x003A 0x00 Reserved
0x003B 0x00 Reserved
0x003C 0x00 Reserved
0x003D 0x00 Reserved
0x003E 0x00 Reserved
0x003F 0x00 Reserved
0x0040 0x14 Reserved
0x0041 0x4E Reserved
0x0042 0x00 Reserved
0x0043 0x00 Reserved
0x0044 0x80 Reserved
0x0045 0x00 Reserved
0x0046 0x00 Reserved
0x0047 0x00 Reserved
0x0048 0x01 APB_CTL
0x0049 0x68 APB_ADR0
0x004A 0x01 APB_ADR1
0x004B 0x00 APB_DATA0
0x004C 0x00 APB_DATA1
0x004D 0x00 APB_DATA2
0x004E 0x00 APB_DATA3
0x004F 0x00 BRIDGE_CTL
0x0050 0x97 BRIDGE_STS
0x0051 0xA1 EDID_ID
0x0052 0x1E EDID_CFG0
0x0053 0x00 EDID_CFG1
0x0054 0x68 BRIDGE_CFG
0x0055 0x0C AUDIO_CFG
0x0056 0x00 TMDS_FIFO
0x0057 0x00 reserved
0x0058 0x00 reserved
0x0059 0x00 reserved
0x005A 0x92 DUAL_STS
0x005B 0xA0 DUAL_CTL1
0x005C 0x02 DUAL_CTL2
0x005D 0x06 FREQ_LOW
0x005E 0x44 FREQ_HIGH
0x005F 0x00 HDMI_FREQ
0x0060 0x22 SPI_TIMING1
0x0061 0x02 SPI_TIMING2
0x0062 0x00 SPI_CONFIG
0x0064 0x15 PGCTL
0x0065 0x00 PGCFG
0x0066 0x0D PGIA
0x0067 0x16 PGID
0x0068 0x30 Reserved
0x0069 0x00 Reserved
0x006A 0x00 Reserved
0x006B 0x00 Reserved
0x006C 0x00 Reserved
0x0070 0x00 SlaveID[1]
0x0071 0x00 SlaveID[2]
0x0072 0x00 SlaveID[3]
0x0073 0x00 SlaveID[4]
0x0074 0x00 SlaveID[5]
0x0075 0x00 SlaveID[6]
0x0076 0x00 SlaveID[7]
0x0077 0x00 SlaveAlias[1]
0x0078 0x00 SlaveAlias[2]
0x0079 0x00 SlaveAlias[3]
0x007A 0x00 SlaveAlias[4]
0x007B 0x00 SlaveAlias[5]
0x007C 0x00 SlaveAlias[6]
0x007D 0x00 SlaveAlias[7]
0x0080 0x00 Reserved
0x0081 0x00 Reserved
0x0082 0x00 Reserved
0x0083 0x00 Reserved
0x0084 0x00 Reserved
0x0090 0x00 Reserved
0x0091 0x00 Reserved
0x0092 0x00 Reserved
0x0093 0x00 Reserved
0x0094 0x00 Reserved
0x0098 0x00 Reserved
0x0099 0x00 Reserved
0x009A 0x00 Reserved
0x009B 0x00 Reserved
0x009C 0x00 Reserved
0x009D 0x00 Reserved
0x009E 0x00 Reserved
0x009F 0x00 Reserved
0x00A0 0x00 Reserved
0x00A1 0x00 Reserved
0x00A2 0x00 Reserved
0x00A3 0x00 Reserved
0x00C0 0x05 Reserved
0x00C1 0x00 Reserved
0x00C2 0x88 Reserved
0x00C3 0x00 Reserved
0x00C4 0x68 Reserved
0x00C5 0x38 Reserved
0x00C6 0x21 HDCP_ICR
0x00C7 0x00 HDCP_ISR
0x00C8 0xC0 Reserved
0x00C9 0x00 Reserved
0x00CA 0x00 Reserved
0x00CB 0x00 Reserved
0x00CC 0x00 Reserved
0x00CE 0xFF Reserved
0x00D0 0x10 Reserved
0x00D1 0x00 Reserved
0x00D2 0x00 Reserved
0x00D3 0x00 Reserved
0x00E0 0x05 Reserved
0x00E1 0x00 Reserved
0x00E2 0x88 Reserved
0x00E3 0x00 Reserved
0x00E4 0x68 Reserved
0x00E5 0x38 Reserved
0x00E6 0x21 Reserved
0x00E7 0x00 Reserved
0x00F0 0x5F HDCP_TX_ID0
0x00F1 0x55 HDCP_TX_ID1
0x00F2 0x42 HDCP_TX_ID2
0x00F3 0x39 HDCP_TX_ID3
0x00F4 0x34 HDCP_TX_ID4
0x00F5 0x39 HDCP_TX_ID5
0x00F6 0x00 Reserved
0x00F8 0x00 Reserved
0x00F9 0x00 Reserved

Register Data Name
0x0000 0x78 I2C Device ID
0x0001 0x04 Reset
0x0002 0x00 General Configuration 0
0x0003 0xF0 General Configuration 1
0x0004 0xFE BCC Watchdog Control
0x0005 0x1E I2C Control 1
0x0006 0x00 I2C Control 2
0x0007 0x18 REMOTE ID
0x0008 0x00 SlaveID[0]
0x0009 0x00 SlaveID[1]
0x000A 0x00 SlaveID[2]
0x000B 0x00 SlaveID[3]
0x000C 0x00 SlaveID[4]
0x000D 0x00 SlaveID[5]
0x000E 0x00 SlaveID[6]
0x000F 0x00 SlaveID[7]
0x0010 0x00 SlaveAlias[0]
0x0011 0x00 SlaveAlias[1]
0x0012 0x00 SlaveAlias[2]
0x0013 0x00 SlaveAlias[3]
0x0014 0x00 SlaveAlias[4]
0x0015 0x00 SlaveAlias[5]
0x0016 0x00 SlaveAlias[6]
0x0017 0x00 SlaveAlias[7]
0x0018 0x00 MAILBOX_18
0x0019 0x01 MAILBOX_19
0x001A 0x00 GPIO[9] and Global GPIO Config
0x001B 0xF6 Frequency Counter
0x001C 0x02 General Status
0x001D 0x10 GPIO0 Config
0x001E 0x00 GPIO1_2 Config
0x001F 0x00 GPIO3 Config
0x0020 0x00 GPIO5_6 Config
0x0021 0x00 GPIO7_8 Config
0x0022 0x40 Datapath Control
0x0023 0x3C RX Mode Status
0x0024 0x08 BIST Control
0x0025 0x00 BIST ERROR COUNT
0x0026 0x14 SCL High Time
0x0027 0x26 SCL Low Time
0x0028 0x21 Datapath Control 2
0x0029 0x00 FRC Control
0x002A 0x00 White Balance Control
0x002B 0x00 I2S Control
0x002C 0x00 Reserved
0x002D 0x00 Reserved
0x002E 0x00 PCLK Test Mode
0x002F 0x00 Reserved
0x0030 0x00 Reserved
0x0031 0x00 Reserved
0x0032 0x90 Reserved
0x0033 0x25 Reserved
0x0034 0x01 DUAL_RX_CTL
0x0035 0x00 AEQ TEST
0x0036 0x00 Reserved
0x0037 0xFF MODE_SEL
0x0038 0x00 Reserved
0x0039 0x00 Reserved
0x003A 0x00 I2S_DIVSEL
0x003B 0x03 Reserved
0x003C 0x20 Reserved
0x003D 0xE0 Reserved
0x003E 0x23 Reserved
0x003F 0x00 Reserved
0x0040 0x43 Reserved
0x0041 0x03 LINK ERROR COUNT
0x0042 0x03 Reserved
0x0043 0x00 HSCC_CONTROL
0x0044 0x60 ADAPTIVE EQ BYPASS
0x0045 0x88 ADAPTIVE EQ MIN MAX
0x0046 0x00 Reserved
0x0047 0x00 Reserved
0x0048 0x0F Reserved
0x0049 0x83 FPD_TX_MODE
0x004A 0x00 Reserved
0x004B 0x08 reg_4B
0x004C 0x00 Reserved
0x004D 0x00 Reserved
0x004E 0x63 Reserved
0x004F 0x00 Reserved
0x0050 0x03 Reserved
0x0051 0x10 Reserved
0x0052 0x00 areg12_2
0x0053 0x01 Reserved
0x0054 0x80 Reserved
0x0055 0x00 Reserved
0x0056 0x00 areg12_6
0x0057 0x00 areg12_7
0x0058 0x00 Reserved
0x0059 0x7F Reserved
0x005A 0x20 Reserved
0x005B 0x20 Reserved
0x005C 0x00 Reserved
0x005D 0x00 Reserved
0x005E 0x00 Reserved
0x005F 0x00 Reserved
0x0060 0x00 Reserved
0x0061 0x00 Reserved
0x0062 0x00 Reserved
0x0063 0x00 Reserved
0x0064 0x10 PGCTL
0x0065 0x00 PGCFG
0x0066 0x00 PGIA
0x0067 0x00 PGID
0x0068 0x00 PGDBG
0x0069 0x00 PGTSTDAT
0x006E 0x00 GPI Pin Status 1
0x006F 0x00 GPI Pin Status 2
0x0070 0x00 Reserved
0x0071 0x00 Reserved
0x0072 0x00 Reserved
0x0073 0x07 Reserved
0x0074 0x07 Reserved
0x0075 0x08 Reserved
0x0076 0x00 Reserved
0x0077 0x00 Reserved
0x0078 0x00 Reserved
0x0079 0x00 Reserved
0x007A 0x00 Reserved
0x007B 0x00 Reserved
0x007C 0x02 Reserved
0x0080 0x00 Reserved
0x0081 0x00 Reserved
0x0082 0x00 Reserved
0x0083 0x00 Reserved
0x0084 0x00 Reserved
0x0090 0x00 Reserved
0x0091 0x00 Reserved
0x0092 0x00 Reserved
0x0093 0x00 Reserved
0x0094 0x00 Reserved
0x0098 0x00 Reserved
0x0099 0x00 Reserved
0x009A 0x00 Reserved
0x009B 0x00 Reserved
0x009C 0x00 Reserved
0x009D 0x00 Reserved
0x009E 0x00 Reserved
0x009F 0x00 Reserved
0x00C0 0x00 Reserved
0x00C1 0x00 Reserved
0x00C3 0x00 Reserved
0x00C4 0x00 Reserved
0x00C5 0x00 Reserved
0x00C8 0xC0 Reserved
0x00C9 0x00 Reserved
0x00CA 0x00 Reserved
0x00CB 0x00 Reserved
0x00CC 0x00 Reserved
0x00E0 0x00 Reserved
0x00E1 0x00 Reserved
0x00E2 0x00 Reserved
0x00E3 0x00 Reserved
0x00E8 0x00 Reserved
0x00E9 0x00 Reserved
0x00EA 0x00 Reserved
0x00F0 0x5F RX_ID0
0x00F1 0x55 RX_ID1
0x00F2 0x42 RX_ID2
0x00F3 0x39 RX_ID3
0x00F4 0x34 RX_ID4
0x00F5 0x38 RX_ID5
0x00F6 0x00 Reserved
0x00F8 0x00 Reserved
0x00F9 0x00 Reserved

over 2 years ago

0 Casey McCrea over 2 years ago

TI__Guru* 98525 points

Hello Daksha,

What are you using as the HDMI source here? Can you share that detail as well as your schematic?

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

I'm using my laptop as the HDMI source and an HDMI to microHDMI cable going from the laptop to my custom serializer board. Where can I send you my schematic?

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

I sent you a friend request on E2E - can you please provide the schematic through private message?

Best Regards,

Casey

0 Casey McCrea over 2 years ago in reply to Casey McCrea

TI__Guru* 98525 points

Daksha,

Are the screen shots showing ALP coming from a connection to your custom HDMI board or is that taken from our EVM?

Best Regards,

Casey

0 Daksha Naik over 2 years ago

Prodigy 15 points

Hi Casey,

The register settings are with our custom Serializer board connected to the Deserializer EVM.

Thanks.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

I'm not asking about the register dump, I'm asking about the screen shots which you posted of the ALP GUI

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

That's with the custom Serializer board as well.

Thanks.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

Can you please try setting 949 register 0x5C[6] = 1 and see if that makes any change to behavior?

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

No change to HDMI behavior.

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Daksha,

I think your issue here is that the HDMI connector pinout from your schematic is not correct for the HDMI female pinout which would explain why only the HDMI interface is giving you errors. Check the HDMI RX pinout in your schematic vs. the pinout of the HDMI connector on the 949 EVM for comparison

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

Hi Casey,

its a micro HDMI connector pinout.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

Ok one other issue I see is in your MODE_SEL1 strapping. The schematic is using differential connection but you have the device strapped for coax mode so that may be causing some issues with the back channel communication. Can you please adjust the MODE_SEL1 strapping resistors to #1 instead of #3?

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

Hi Casey,

I am using coax cables between the Serializer and Deserializer. With this setting I'm able to test the color bar pattern. I'm assuming if I choose Mode #1, it will set the mode for Twisted-pair cable.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Daksha,

In the schematic which you sent, the FPD-Link output is in differential mode, not coax:

If you are using differential mode then strap the device for STP configuration. My concern is that part of the internal state machine for the 949 device includes the SER correctly recognizing the presence and capabilities of the DES through the back channel communication on the FPD-Link interface. If the back channel is not working or is partially not working due to mis-configuration then the state machine may not advance to the point where it will start pulling data from the HDMI interface which could explain why PATGEN (only FC communication) works but HDMI passthrough does not

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

I changed it to Mode 1 and I'm facing the same issue. Colorbar pattern works but not HDMI.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

In your schematic, what is X1? I'm trying to understand the signal path here. Is it:

X23 (HDMI Connector) -> 949?

X23 (HDMI Connector) -> X1 (40 pin connector) -> 949?

Is there something in-between the HDMI source and the 949? The net names look the same like there would be a direct connection from the 949 to the HDMI, but then I see there is also a 40pin connector on those nets too so is the HDMI trying to connect with two sinks at once?

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

Hi Casey,

X1 is the main board connector (future use). Its not being used as of now. Since, the main board is not connected right now, for testing purposes, I have a micro HDMI connector X23. So for now, the signal path is X23 to 949. The 40 pin connector has no inputs.

Thanks.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

So do you have a stub then from the 40 pin connector in the layout which may be contributing to this issue?

Best Regards,

Casey

0 Daksha Naik over 2 years ago in reply to Casey McCrea

Prodigy 15 points

There's a quarter inch stub in the layout. Not sure if that should be significant enough.

-Daksha

0 Casey McCrea over 2 years ago in reply to Daksha Naik

TI__Guru* 98525 points

Hello Daksha,

Considering I don't see any differences between the 949 EVM schematic and your schematic, plus the ALP GUI seems to indicate that the device is working normally so far as I can tell, except for no HDMI input is recognized, that is the only remaining thing I could see contributing to this issue. When you plug the laptop source into your board, does it recognize that there is an HDMI sink attached as a second monitor? Does the laptop indicate that it is outputting video to that sink in the control panel? If so, then I would suggest maybe to probe the TMDS lines at the input to the 949 and see how the signal integrity looks, starting with the TMDS clock. If you have a large stub in the PCB then it's possible that the TMDS signals are just getting highly distorted by the time they reach the 949. If the laptop does not see that the 949 is attached as a sink, then it would also be good to probe the HPD signal at the HDMI connector to make sure it is high, and then also probe the DDC lines with a logic analyzer when the HDMI is plugged to the source to see what sort of exchange is happening and compare with the 949 EVM that was working for you

Best Regards,

Casey

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DS90UB949-Q1: DS90UB949-Q1