Re: [beagleboard] LCD RGB signall termination and line impedance

These signals are also the boot pins. You need to check the schematic of the SOM to see what resistor values they are using to terminate the signals. I would buffer the signals before connecting them to a LCD panel. Gerald On Wed, Sep 28, 2016 at 12:50 PM, John Syne wrote:

Re: [beagleboard] LCD RGB signall termination and line impedance

33 ohms is a good starting point. Once you have your board operating, use a high speed digital oscilloscope to measure the waveforms on the LCD lines. If they are square with no or little ringing, then the value is fine. If you see ringing, start by increase the resistor value and if it gets

Re: [beagleboard] LCD RGB signall termination and line impedance

Depends on the LCD, distance, capacitance, and the connector impedance of the SOM. The SOM supplier should be able to answer that question via an application note. Gerald On Wed, Sep 28, 2016 at 9:42 AM, Francisco Aguerre < franciscoague...@gmail.com> wrote: > Hello, > > I am working with a

[beagleboard] LCD RGB signall termination and line impedance

Hello, I am working with a System-on-Module based on the BeagleBone Black and I need to connect a TFT LCD screen that goes in the front panel of a rackmounted 19'' enclosure. The cable has to run a distance of about 15cm and I am concerned about EMI stuff. My question is: what is the