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Forum: RDM Physical Layer/Hardware Discussion

July 8th, 2009

Replies: 24

What is the basic requirement to implement RDM?

Views: 37,602

Posted By ericthegeek

Every UART is different, and I've never use the...

Every UART is different, and I've never use the PSoC devices, so I can't tell you how their UART behaves. Usually it takes a few hours with some simple test code and an oscilloscope to determine...

Forum: RDM Physical Layer/Hardware Discussion

July 8th, 2009

Replies: 24

What is the basic requirement to implement RDM?

Views: 37,602

Posted By ericthegeek

Not all UARTs can reliably detect a break. You...

Not all UARTs can reliably detect a break. You may have to use a timer input, GPIO or something else to ensure you can separate breaks from noise.

Forum: RDM Physical Layer/Hardware Discussion

June 25th, 2009

Replies: 24

What is the basic requirement to implement RDM?

Views: 37,602

Posted By ericthegeek

Just about any 8-bit microcontroller with a UART...

Just about any 8-bit microcontroller with a UART and a few K-bytes of flash should be sufficient for RDM. Add more flash if you want to program in C instead of assembly, and having >1K-byte of RAM...

Forum: RDM Physical Layer/Hardware Discussion

June 15th, 2009

Replies: 24

What is the basic requirement to implement RDM?

Views: 37,602

Posted By ericthegeek

In Null Startcode only systems, you could usually...

In Null Startcode only systems, you could usually get away with this, but it's not enough for reliable RDM operation. 0x00+Framing Error only tells you that the line has been held low for about...

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