DS90UB971-Q1: No any output from Dout of DS90UB971 after we enabled Pattern Generator

Lance Shen

Tool/software:

Hi Sir,

We used the following example code to enable Pattern Generator. But no any output from Dout of DS90UB971. Are there any incorrect or missing parts?

I2C between DS90UB971 and TDA4AL is ok, we can get the correct ID of DS90UB971 over I2C.

7.6.4 Code Example for Pattern Generator

#Patgen Fixed Colorbar 1280x720p30

WriteI2C(0xB0,0x00) # Indirect Pattern Gen Registers

WriteI2C(0xB1,0x01) # PGEN_CTL

WriteI2C(0xB2,0x01)

WriteI2C(0xB1,0x02) # PGEN_CFG

WriteI2C(0xB2,0x33)

WriteI2C(0xB1,0x03) # PGEN_CSI_DI

WriteI2C(0xB2,0x24)

WriteI2C(0xB1,0x04) # PGEN_LINE_SIZE1

WriteI2C(0xB2,0x0F)

WriteI2C(0xB1,0x05) # PGEN_LINE_SIZE0

WriteI2C(0xB2,0x00)

WriteI2C(0xB1,0x06) # PGEN_BAR_SIZE1

WriteI2C(0xB2,0x01)

WriteI2C(0xB1,0x07) # PGEN_BAR_SIZE0

WriteI2C(0xB2,0xE0)

WriteI2C(0xB1,0x08) # PGEN_ACT_LPF1

WriteI2C(0xB2,0x02)

WriteI2C(0xB1,0x09) # PGEN_ACT_LPF0

WriteI2C(0xB2,0xD0)

WriteI2C(0xB1,0x0A) # PGEN_TOT_LPF1

WriteI2C(0xB2,0x04)

WriteI2C(0xB1,0x0B) # PGEN_TOT_LPF0

WriteI2C(0xB2,0x1A)

WriteI2C(0xB1,0x0C) # PGEN_LINE_PD1

WriteI2C(0xB2,0x0C)

WriteI2C(0xB1,0x0D) # PGEN_LINE_PD0

WriteI2C(0xB2,0x67)

WriteI2C(0xB1,0x0E) # PGEN_VBP

WriteI2C(0xB2,0x21)

WriteI2C(0xB1,0x0F) # PGEN_VFP

WriteI2C(0xB2,0x0A)

over 1 year ago

0 Glenn Uranga over 1 year ago

TI__Genius 16220 points

HI Lance,

Do you have a TI sales rep or TI field application engineer you can work with? These are NDA part, and we need to change this E2E to an internal forum.

If you can provide a block diagram of what you are trying to do would help. To see the pattern gen you need to have a DES connected to the 971.

Glenn

0 Johnson Ting over 1 year ago in reply to Glenn Uranga

Prodigy 30 points

Hi Glenn,

Our FAE is Shih, Gibbs <gibbsshih@ti.com>

We use a test box (Dothinkey FM101) to verify test pattern on PC.

Thanks

0 Glenn Uranga over 1 year ago in reply to Johnson Ting

TI__Genius 16220 points

HI Johnson,

Can you please work with Gibbs to get this to internal E2E?

Once internal we can provide a script for you to run. If you can provide the information below for the internal E2E.

PATGEN Output

Horizontal Resolution
Vertical Resolution
Total Vertical Blanking
Vertical Front Porch
Vertical Back Porch
Vertical Sync
Frame Rate
FC Rate
Video format

Gibbs,

Please help to make this an internal patget.

Glenn

0 Johnson Ting over 1 year ago in reply to Glenn Uranga

Prodigy 30 points

Hi Glenn,

Would you please let us know why we need FC rate?

Horizontal Resolution	1920
Vertical Resolution	1080
Total Vertical Blanking	45
Vertical Front Porch	10
Vertical Back Porch	33
Vertical Sync	2
Frame Rate	60
FC Rate	7.55 Gbps
Video format	RGB888

Thanks

0 Glenn Uranga over 1 year ago in reply to Johnson Ting

TI__Genius 16220 points

HI Johnson,

I have provided this to Gibbs. He should reach out soon.

Interface

Interface forum

DS90UB971-Q1: No any output from Dout of DS90UB971 after we enabled Pattern Generator