Bus isolation

[prasimix]

What kind of isolation can be deployed to isolate communication between master module and peripheral modules, and between two or more peripheral modules? Perhaps we could use:

• AC-coupled LVDS (check if DC balancing has to be added)
• Optical barrier using Rx/Tx pairs used to drive fibre optic cable.

[emard]

AC coupled LVDS, you mean simple capacitors like on HDMI? floating DC and regular 40V/10A shortcuts will sometimes make a glitch or bus error... If error correction bus protocol needs to be implemented, I doubt we'll ever make it :) I suggest to use optical or anything for which we are sure that is glitch, EMI and noise resistant.

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On 7/27/19, prasimix ***@***.***> wrote: What kind of isolation can be deployed to isolate communication between master module and peripheral modules, and between two or more peripheral modules? Perhaps we could use: * AC-coupled LVDS (check if DC balancing has to be added) * Optical barrier using Rx/Tx pairs used to drive fibre optic cable. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: #7

[prasimix]

AC coupled LVDS, you mean simple capacitors like on HDMI?

Don't know if you can use isolation transformers as one used in Ethernet. Perhaps that could be a more resilient then just capacitors? From other side that probably asks for some sort of drivers/buffers.

[emard]

Transformer based isolator should be OK floating DC glich won't affect the signal

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On 7/28/19, prasimix ***@***.***> wrote: > AC coupled LVDS, you mean simple capacitors like on HDMI? Don't know if you can use isolation transformers as one used in Ethernet. Perhaps that could be a more resilient then just capacitors? From other side that probably asks for some sort of drivers/buffers. -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: #7 (comment)