SN65DSI83-Q1: Please review the schematic

Chase Jeong

Genius 5780 points

Part Number: SN65DSI83-Q1

Dear TI experts,

My customer made their first schematic with SN65DSI83-Q1. Could you review this schematic?

1412_sch2.pdf

And can you check the SW tool for test, initialization code, and other software information?

Best regards,

Chase

9 months ago

0 Vishesh Pithadiya 9 months ago

TI__Mastermind 23285 points

Hey Chase,

The schematic looks good for the most part. Some changes you need to implenet are:

Add a 220nF cap going to Ground on the EN pin to slow down the edge.

Make sure this NMOS circuitry will properly isolate the 3.3V and the 1.8V pull up. From my understanding when the gate is held to high the 1.8V pull up and the 3.3V pull up will be seen on the line.

I cannot verify the LCD panel as I am not familiar with the product.

Regarding setup and software.

Here is a link to some DSI83 driver code. All software provided is as is and will not be updated or supported.

link: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/549283/sn65dsi83-sn65dsi84-sn65dsi85---linux-driver/2006135#2006135

Here is the DSI tuner tool which can be used to configure the registers correctly:

8741.DSI Tuner 2.1.zip.7z

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SN65DSI83-Q1: Please review the schematic