DS90UB929-Q1EVM: How to realizes new resolution from HDMI input?

Doug Liu

Prodigy 70 points

Part Number: DS90UB929-Q1EVM

Hello,

We would like input video source from PC.

Our connection diagram is PC -> HDMI -> UB929 -> FPD-Link -> UB924 -> Display.

Now we cannot show on display when we using HDMI input source.

The custom display is 1920x360 resolutions.

Could you help check is there any setting wrong?

Below are dump all the registers of UB929 for further analysis.

BR.Doug

929_HDMI_E2E.txt

Texas Instruments - Analog LaunchPAD
© 2007-2020 Texas Instruments Inc. All Rights Reserved
The variable "board" contains the selected daughter board object. The variable "alpBoards" contains a list of ALP Board objects present on this machine.

*** Running test_liwei.py ***
0x0,0x18
0x1,0x0
0x2,0x0
0x3,0xda
0x4,0x80
0x5,0x0
0x6,0x58
0x7,0x0
0x8,0x0
0x9,0x0
0xa,0x9
0xb,0x0
0xc,0x7
0xd,0x10
0xe,0x0
0xf,0x0
0x10,0x0
0x11,0x0
0x12,0x0
0x13,0x88
0x14,0x0
0x15,0x1
0x16,0xfe
0x17,0x1e
0x18,0x7f
0x19,0x7f
0x1a,0x1
0x1b,0x0
0x1c,0x0
0x1d,0x0
0x1e,0x1
0x1f,0x0
0x20,0x3
0x21,0x0
0x22,0x25
0x23,0x0
0x24,0x0
0x25,0x0
0x26,0x0
0x27,0x0
0x28,0x1
0x29,0x20
0x2a,0x20
0x2b,0xe0
0x2c,0x0
0x2d,0x0
0x2e,0xa5
0x2f,0x5a
0x30,0x0
0x31,0x0
0x32,0x0
0x33,0x0
0x34,0x0
0x35,0x0
0x36,0x0
0x37,0x0
0x38,0x0
0x39,0x0
0x3a,0x0
0x3b,0x0
0x3c,0x0
0x3d,0x0
0x3e,0x0
0x3f,0x0
0x40,0x14
0x41,0x4e
0x42,0x0
0x43,0x0
0x44,0x80
0x45,0x0
0x46,0x0
0x47,0x0
0x48,0x1
0x49,0x68
0x4a,0x1
0x4b,0x0
0x4c,0x0
0x4d,0x0
0x4e,0x0
0x4f,0x0
0x50,0x97
0x51,0xa1
0x52,0x1e
0x53,0x0
0x54,0x28
0x55,0xc
0x56,0x0
0x57,0x0
0x58,0x0
0x59,0x0
0x5a,0xdd
0x5b,0x20
0x5c,0x2
0x5d,0x6
0x5e,0x44
0x5f,0x4c
0x60,0x22
0x61,0x2
0x62,0x0
0x63,0x0
0x64,0x10
0x65,0x0
0x66,0x3
0x67,0x3
0x68,0x30
0x69,0x0
0x6a,0x0
0x6b,0x0
0x6c,0x0
0x6d,0x0
0x6e,0x0
0x6f,0x0
0x70,0x0
0x71,0x0
0x72,0x0
0x73,0x0
0x74,0x0
0x75,0x0
0x76,0x0
0x77,0x0
0x78,0x0
0x79,0x0
0x7a,0x0
0x7b,0x0
0x7c,0x0
0x7d,0x0
0x7e,0x0
0x7f,0x0
0x80,0x0
0x81,0x0
0x82,0x0
0x83,0x0
0x84,0x0
0x85,0x0
0x86,0x0
0x87,0x0
0x88,0x0
0x89,0x0
0x8a,0x0
0x8b,0x0
0x8c,0x0
0x8d,0x0
0x8e,0x0
0x8f,0x0
0x90,0x0
0x91,0x0
0x92,0x0
0x93,0x0
0x94,0x0
0x95,0x0
0x96,0x0
0x97,0x0
0x98,0x0
0x99,0x0
0x9a,0x0
0x9b,0x0
0x9c,0x0
0x9d,0x0
0x9e,0x0
0x9f,0x0
0xa0,0x0
0xa1,0x0
0xa2,0x0
0xa3,0x0
0xa4,0x0
0xa5,0x0
0xa6,0x0
0xa7,0x0
0xa8,0x0
0xa9,0x0
0xaa,0x0
0xab,0x0
0xac,0x0
0xad,0x0
0xae,0x0
0xaf,0x0
0xb0,0x0
0xb1,0x0
0xb2,0x0
0xb3,0x0
0xb4,0x0
0xb5,0x0
0xb6,0x0
0xb7,0x0
0xb8,0x0
0xb9,0x0
0xba,0x0
0xbb,0x0
0xbc,0x0
0xbd,0x0
0xbe,0x0
0xbf,0x0
0xc0,0x5
0xc1,0x0
0xc2,0x88
0xc3,0x0
0xc4,0x28
0xc5,0x0
0xc6,0x0
0xc7,0x60
0xc8,0xc0
0xc9,0x0
0xca,0x0
0xcb,0x0
0xcc,0x0
0xcd,0x0
0xce,0xff
0xcf,0x0
0xd0,0x10
0xd1,0x0
0xd2,0x0
0xd3,0x0
0xd4,0x0
0xd5,0x0
0xd6,0x0
0xd7,0x0
0xd8,0x0
0xd9,0x0
0xda,0x0
0xdb,0x0
0xdc,0x0
0xdd,0x0
0xde,0x0
0xdf,0x0
0xe0,0x5
0xe1,0x0
0xe2,0x88
0xe3,0x0
0xe4,0x28
0xe5,0x38
0xe6,0x0
0xe7,0x0
0xe8,0x0
0xe9,0x0
0xea,0x0
0xeb,0x0
0xec,0x0
0xed,0x0
0xee,0x0
0xef,0x0
0xf0,0x5f
0xf1,0x55
0xf2,0x42
0xf3,0x39
0xf4,0x32
0xf5,0x39
0xf6,0x0
0xf7,0x0
0xf8,0x0
0xf9,0x0
0xfa,0x0
0xfb,0x0
0xfc,0x0
0xfd,0x0
0xfe,0x0
0xff,0x0
 ==================== 
0x0,0x0
0x1,0x0
0x2,0x0
0x3,0x3
0x4,0x70
0x5,0xe6
0x6,0x2e
0x7,0x0
0x8,0x5
0x9,0x2d
0xa,0x50
0xb,0x5
0xc,0xd8
0xd,0x16
0xe,0x0
0xf,0x1e
0x10,0xe
0x11,0x21
0x12,0x43
0x13,0x65
0x14,0x87
0x15,0xa9
0x16,0xcb
0x17,0xed
0x18,0xf
0x19,0x0
0x1a,0x1
0x1b,0x0
0x1c,0x0
0x1d,0x0
0x1e,0x0
0x1f,0x0
0x20,0x0
0x21,0x0
0x22,0x0
0x23,0x0
0x24,0x0
0x25,0x0
0x26,0x0
0x27,0x0
0x28,0x0
0x29,0x0
0x2a,0x0
0x2b,0x0
0x2c,0x0
0x2d,0x0
0x2e,0x0
0x2f,0x0
0x30,0x0
0x31,0x0
0x32,0x0
0x33,0x0
0x34,0x0
0x35,0x0
0x36,0x0
0x37,0x0
0x38,0x0
0x39,0x0
0x3a,0x0
0x3b,0x0
0x3c,0x0
0x3d,0x0
0x3e,0x0
0x3f,0x0
0x40,0x0
0x41,0x0
0x42,0x0
0x43,0x0
0x44,0x0
0x45,0x0
0x46,0x0
0x47,0x0
0x48,0x0
0x49,0x0
0x4a,0x0
0x4b,0x0
0x4c,0x0
0x4d,0x0
0x4e,0x0
0x4f,0x0
0x50,0x0
0x51,0x0
0x52,0x0
0x53,0x0
0x54,0x0
0x55,0x0
0x56,0x0
0x57,0x0
0x58,0x0
0x59,0x0
0x5a,0x0
0x5b,0x0
0x5c,0x0
0x5d,0x0
0x5e,0x0
0x5f,0x0
0x60,0x0
0x61,0x0
0x62,0x0
0x63,0x0
0x64,0x0
0x65,0x0
0x66,0x0
0x67,0x0
0x68,0x0
0x69,0x0
0x6a,0x0
0x6b,0x0
0x6c,0x0
0x6d,0x0
0x6e,0x0
0x6f,0x0
0x70,0x0
0x71,0x0
0x72,0x0
0x73,0x0
0x74,0x0
0x75,0x0
0x76,0x0
0x77,0x0
0x78,0x0
0x79,0x0
0x7a,0x0
0x7b,0x0
0x7c,0x0
0x7d,0x0
0x7e,0x0
0x7f,0x0
0x80,0x0
0x81,0x0
0x82,0x0
0x83,0x0
0x84,0x0
0x85,0x0
0x86,0x0
0x87,0x0
0x88,0x0
0x89,0x0
0x8a,0x0
0x8b,0x0
0x8c,0x0
0x8d,0x0
0x8e,0x0
0x8f,0x0
0x90,0x0
0x91,0x0
0x92,0x0
0x93,0x0
0x94,0x0
0x95,0x0
0x96,0x0
0x97,0x0
0x98,0x0
0x99,0x0
0x9a,0x0
0x9b,0x0
0x9c,0x0
0x9d,0x0
0x9e,0x0
0x9f,0x0
0xa0,0x0
0xa1,0x0
0xa2,0x0
0xa3,0x0
0xa4,0x0
0xa5,0x0
0xa6,0x0
0xa7,0x0
0xa8,0x0
0xa9,0x0
0xaa,0x0
0xab,0x0
0xac,0x0
0xad,0x0
0xae,0x0
0xaf,0x0
0xb0,0x0
0xb1,0x0
0xb2,0x0
0xb3,0x0
0xb4,0x0
0xb5,0x0
0xb6,0x0
0xb7,0x0
0xb8,0x0
0xb9,0x0
0xba,0x0
0xbb,0x0
0xbc,0x0
0xbd,0x0
0xbe,0x0
0xbf,0x0
0xc0,0x0
0xc1,0x0
0xc2,0x0
0xc3,0x0
0xc4,0x0
0xc5,0x0
0xc6,0x0
0xc7,0x0
0xc8,0x0
0xc9,0x0
0xca,0x0
0xcb,0x0
0xcc,0x0
0xcd,0x0
0xce,0x0
0xcf,0x0
0xd0,0x0
0xd1,0x0
0xd2,0x0
0xd3,0x0
0xd4,0x0
0xd5,0x0
0xd6,0x0
0xd7,0x0
0xd8,0x0
0xd9,0x0
0xda,0x0
0xdb,0x0
0xdc,0x0
0xdd,0x0
0xde,0x0
0xdf,0x0
0xe0,0x0
0xe1,0x0
0xe2,0x0
0xe3,0x0
0xe4,0x0
0xe5,0x0
0xe6,0x0
0xe7,0x0
0xe8,0x0
0xe9,0x0
0xea,0x0
0xeb,0x0
0xec,0x0
0xed,0x0
0xee,0x0
0xef,0x0
0xf0,0x0
0xf1,0x0
0xf2,0x0
0xf3,0x0
0xf4,0x0
0xf5,0x0
0xf6,0x0
0xf7,0x0
0xf8,0x0
0xf9,0x0
0xfa,0x0
0xfb,0x0
0xfc,0x0
0xfd,0x0
0xfe,0x0
0xff,0x0
*** Script execution time 0 min 8.310 sec ***
>

over 2 years ago

0 Casey McCrea over 2 years ago

TI__Guru** 102715 points

Hello Doug,

Where is the EDID information coming from in your system design? Do you have an EEPROM with the 1920x360 display timing on the 924 PCB? On the 929 PCB? Or are you intending to use in EDID in the internal SRAM of 929? (in which case you would need to load the EDID into 929 SRAM after power up)

Best Regards,

Casey

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

Prodigy 70 points

Hello Casey:

We don't have an EEPROM on both 929 PCB and 924 PCB.

Our default plan to use internal SRAM of 929.

Can internal EDID support 1920x360 resoultion?

BR.Doug

0 Doug Liu over 2 years ago in reply to Doug Liu

Prodigy 70 points

Hello Casey:

From the datasheet of 929,(page17)

The EDID configurations supported are as follows:
1. External local EDID (EEPROM)
2. Internal EDID loaded into device memory
3. Remote EDID connected to I2C bus at deserializer side
4. Internal pre-programmed EDID

About 1 and 3 need external EEPROM, but 2 and 4 are use internal SRAM.

Can we modify internal EDID on 929 PCB? If we can. How to setting it as we expect? address or value something like....

RB.Doug

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

TI__Guru** 102715 points

Hello Doug,

Yes, the SRAM can support any resolution you would like. Attached are instructions on how to access it:

949-929 Read-Write EDID.pdf

Best Regards,

Casey

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

Prodigy 70 points

Hello Casey:

I already read the PDF file. It can be read/write resigers 0x48, 0x49 and 0x4B of APB.

but there are didn't explain Reg 0x4B how to setting? what kind value can mapping what's resolution?

We don't understand which 8-bit data can demorstrat 1920x360 resolutuon.

BR. Doug

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

TI__Guru** 102715 points

Hello Doug,

You need to load the 256 byte EDID from your display panel into the EDID space. If your panel supplier didn't provide an EDID for this display, then you could use a tool such as AW EDID editor to generate one: https://www.analogway.com/americas/products/software-tools/aw-edid-editor/

Best Regards,

Casey

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DS90UB929-Q1EVM: How to realizes new resolution from HDMI input?