DS90UB928Q-Q1: Default register-setting files

Hello Sauron,

Can you please describe in detail what settings you need help with? The device default register settings are shown in the datasheet. Any configuration beyond those depends on your specific use-case for the device which we would need detail on to assist with.

Best Regards,
Casey

Dear Steven & Casey,
Hope to provide your mail or other contact information for consulting with you.
Our project with 928 will start to test next week.
Thanks.

Best regards
Sauron

Hello Sauron,

Our preference is to keep conversation on E2E if possible for easier tracking and for potential re-use of solution information.

Best Regards,
Casey

Hi,

about setting pattern generator by the Indirect Register Map (in TI App Note AN-2198),

I can't find their address in Table 8.6 Register Maps in DS90UB928 datasheet.

Best regards,

Sauron Huang

Dear Steven,
I mean to how to set the Indirect Register Map?
by Address 0x65, 0x66, 0x67 to set only 1 pattern?
But we want Auto-Scroll many patterns,
such as graylevel16(G16), graylevel31(G31), graylevel63(G63), and crosstalk(CT), and
these patterns display following the sequence of G16-->G31-->G63-->CT-->G16,
Can we use this setting to achieve our target?
Hope to get an example address-setting file to us for setting such Auto-Scroll patterns.

Warm Regards,
Sauron

Hi,

the below picture is our target patterns in BIST mode, and these patterns are Auto-Scrolling sequentially.

How to set the  Indirect Register Map to get such patterns?

Warm Regards,
Sauron

Hi,
the GPIO can be configured only by DS90UB928QSQ instead of DS90UB927?
Sauron

Hello Sauron,

GPIO can be configured from either side of the FPD Link using either the forward or back channels. 

Best Regards,

Casey 

Dear Casey,
we want to configure the DS90UB928's GPIO-setting through I2C path byEEPROM-writer, but fail to write the GPIO.
Our production PCBA only had DS90UB928 and no DS90UB927.
Hope for your suggestion.

Best regard,
Sauron.

Hello Sauron,

What I2C command are you sending to the 928 device?

Thanks,
Casey

Hi,

Our PCBA used DS90UB928, but those PCBA system were without FPD-LinkIII and without DS90UB927.

We want to enter the BIST mode (using 928 Internal pattern generator) to light the LCD-panel.

We had tried as below, but still fail to light panels by BIST-mode. 

We had tried:

1. pull-high the BISTEN pin,
2. pull-high OSS_SEL & OEN,
3. Set register address 0x24 as value of 0x01(BIST control enable), or 0x09(BIST control enable+BIST enabled from pin (default))

        4. Set register address 0x39 as value of 0x02(1: Pattern Generator with internal PCLK)

        5. Set register address 0x64 as value of 0x61 (1: Enable Pattern Generator)

Hope for your suggestion.

Thanks.

Best regards,

 

Sauron Huang