RailPro > RailPro Specific Help & Discussion
Cannot load sound files from HC-2b to LM-3S
nodcc4me:
Robert, you said the module shorted at the connection of the speaker wires. Could there possibly be a short in the harness or in the module connector itself?
robert.h.giffin:
Very well could be. I will see what Ring says about it.
Alan:
Speakers are typically spec'd between 2 ohm and 8 ohm impedance. The rating is nominal because frequency changes impedance. Impedance is the combination of resistance and phase in a device driven by an AC signal. Your meter supplies a DC voltage to measure resistance. There is no phase angle of a DC source. As a result, the DC resistance measurement will be less than the AC impedance spec of the speaker. A 2 ohm speaker will look like pegging the meter because the DC resistance will be less than 2 ohms. A 4 ohm speaker would measure an ohm or two. An 8 ohm speaker is usually around 6 ohms. Your meter needs to be accurately calibrated on a low range scale (100 or 10 ohm FS) to measure such low resistances without looking like the meter is pegged.
KPack:
If I remember right my short was from a loose piece of solder inside the module itself. The install went well and the locomotive worked fine for a bit, including sound, but then out of the blue the locomotive made a very loud, strange sound, and then went completely dead. The module was very hot/melted where the two speaker wires went into the module. Ring inspected it and apparently a small piece of solder had broken loose somehow inside the module and ended up across the leads to the amp, shorting it out. Killed the module at the same time. Like I said before Ring replaced it at no charge. I've never had that problem since.
-Kevin
G8B4Life:
Well, this is sad news that it's come to this for someone.
Always late to the discussion from the time difference I'll still respond.
--- Quote ---From the research I've done, the radios use UDP to transfer the files.
--- End quote ---
UDP is most definitely used to transfer the files from Rings server to RailPro Assistant. This was discovered ages ago. I don't know what protocol is used between the transmitters in the products, I haven't the tools to find that out. I don't know what's used to transfer files between RPA and the HC / CI-1, that's still on the todo list.
In Tim Rings mind UDP was probably the best choice, less over head etc as you mentioned. That choice has caused a few issues for some but for different reasons. I've studied and am still studying the Ring file transfer and going back on what I've said previously from recent study the data transfer seems pretty robust, just very slow. I haven't seen a dropped packet yet but I'll still studying.
The transfer speed from Rings server to RPA could probably be a lot higher (the files are not actually that big in computing terms), heck have you ever streamed anything on your computer or skyped etc, that's going to be almost 100% of the time UDP. It's without the checking that RE performs but it's still UDP and it's usually fast. There's probably a couple of things at play here:
Rings file server is not a webserver in some datacentre with a huge backbone but from what can be identified right now it's a server sitting in an office on a residential/business DSL connection. Uploads (what's happening when you get sent a file) are notoriously slow due to "plan shaping" for want of a better word.
In the old days files were downloaded directly to the HC from the file server. I imagine the speed was made slow to begin with due to the speed at which the HC could accept input through it's serial connection. We may just be still using this speed even though now files are downloaded to RPA first before being copied to the HC.
--- Quote ---You should be able to quickly download the files from the server to Assistant using the full stack of TCP available on the computer.
--- End quote ---
Agree. This would require Ring moving the file server to a proper webhosting scenario.
--- Quote ---You should be able to store those in Assistant
--- End quote ---
It does.
--- Quote ---you should also be able to preview the sound files and preview pictures through Assistant. Then you should be able to pick from those and COPY them to the controller, keeping them in Assistant so you don't have to go back to the server every time you need that file or files.
--- End quote ---
It does and you can. You cannot preview sounds (it should not be hard for him to add the code to do so) but you can preview pictures. All files that you download are stored in RailPro Assistant. If you delete a file from the HC then you can just copy it to the HC again without having to download it again from the file server. The RailPro Assistant manual and the guides available here would have covered this.
--- Quote from: Alan on January 02, 2018, 06:48:30 PM ---I wonder if it is possible for Ring to provide a flash drive solution. Can't get it working on the web - request a flash drive be sent.
--- End quote ---
This raises a good question. How does Ring get the programs and files on in the first place. It won't be by RF from a HC I'll bet. If he doesn't have them preloaded by the chip manufacturers then there must be a direct wired way. While I built my testing board to make loading things to modules easier a USB device with a 9 pin plug and the required software for loading files to a module would be great.
--- Quote from: TwinStar on January 02, 2018, 08:03:47 PM ---It is about as user friendly as a .gov website... Our current interface reminds me of the green screen Mac I had back in third grade.
--- End quote ---
No argument on that one. Ring really needs to drop the current UI for RailPro Assistant, to heck with making it look like the HC screen, just make it a functional piece of software using standard forms (Winforms, GTK etc) and be done with it. You can make the UI attractive using those form systems.
The UI for the HC and CI-1, that I feel could be made much better too, but that's going to be a subjective argument, what looks really good to me might look bad to someone else..
- Tim (not the RE one)
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