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+--- Thread: RS485 at 250k (/showthread.php?tid=3069)
RS485 at 250k - equalizer - 19.12.2020
I have a unsusual problem.
I have an Av system firing a nonstandard (but known) serial string once per second on a RS485 line at the nonStandard speed of 250k. (Its an old system and not changable, I assume as they are AV people and they liked 250k due to DMX...).
The problem I have is I can't open the RS485 port at 250k, is this possible via script? Would opening at this speed be possible on a USB 485 port? Or do I need to buy/build a hardware buffer to convert the baud rate to a more standard speed I can open a port at.
Robert.
RE: RS485 at 250k - admin - 21.12.2020
Not possible at the moment but the luaserial library can be updated to support non-standard baud rates. I'll let you know when it's ready.
RE: RS485 at 250k - admin - 21.12.2020
Updated serial package with custom baud rate support:
https://dl.openrb.com/pkg/luaserial_20201221_imx6.ipk
RE: RS485 at 250k - equalizer - 21.01.2021
(21.12.2020, 14:27)admin Wrote: Updated serial package with custom baud rate support:
https://dl.openrb.com/pkg/luaserial_20201221_imx6.ipk
Hi. This is great :-)
I just visited the site and they have a MX28 cpu. Can I be cheeky and ask for a MX28 cpu version :-) , or will above version work on the old CPU?
Robert.
RE: RS485 at 250k - admin - 21.01.2021
Package for old CPU: https://dl.openrb.com/pkg/luaserial_20201221_mxs.ipk
RE: RS485 at 250k - equalizer - 18.02.2021
Thank you, I have now tested this with the real non-standard speed serial data source and it works great :-)