SN65DSI83: why cause the SN65DSI83 LVDS output abnormal?

Zongtao Wang

Part Number: SN65DSI83

Tool/software:

hello expert:

there is a black status happen at my display ;i test the 83 LVDS output clk lane and Y2_data lane both output pclk frequency signal ,there is no frequency signal at other data lane ; what will potential cause this ?

over 1 year ago

0 Vishesh Pithadiya over 1 year ago

TI__Guru 63296 points

Hi Zongtao,

I am reassigning to proper team.

0 Ikram Haque over 1 year ago in reply to Vishesh Pithadiya

TI__Mastermind 31380 points

Hello,

Could you please describe your system and what you have running. Do you have the system running with display and it has occasional black screen? Did you try using internal test pattern generation?

Best regards,
Ikram

0 Zongtao Wang over 1 year ago in reply to Ikram Haque

Prodigy 140 points

hello Haque:

this is not a normal case ,this case happen after i short to mipi-dsi signal data lane to ground and then release the shortage; i just want to know if your side had ever meet this case and why cause this ?

0 Ikram Haque over 1 year ago in reply to Zongtao Wang

TI__Mastermind 31380 points

Hi Zongtao,

Could you please describe the issue? Could you please share your configuration/ setup, and a comparison of the signals in normal and issue conditions. It would help if you shared the signals/ waveform captures.

And why are you doing the MIPI ground short? Is this a specific test?

Best regards,
Ikram

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SN65DSI83: why cause the SN65DSI83 LVDS output abnormal?