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#1 Trains, Cars, R/C » RX32d Firmware » 2016-03-24 01:28:37

geams13
Replies: 2

I recently ordered four RX32d from your website and I have some questions about them.  The instructions that come with them says they are running software version 351-2.

I need to use these in Serial mode or SumPPM mode, but can't seem to get either mode to work.  I saw on the Deltang website that the new 3.5 firmware has different options and these receivers may not support serial or SumPPM mode.  Can you tell me what modes are supported?

Is there a way I can update the firmware without sending these back?  If not, how can I order the receivers with the options that I want?

#2 Re: Trains, Cars, R/C » RX31c Firmware » 2016-02-03 22:05:05

Thank you for the quick reply.  I'm sorry, but I didn't realize you had posted a response.

I forced the Spektrum transmitter into DSM2 mode and was able to bind it that way.  Thank you for that info.  It appears that I'm not getting the "missing frame" error using the DSM2 mode.  I'm not very knowledgeable about RC transmission protocols, so I have no idea if this makes sense or not, but the problem seems to resolved for me in that mode.

Below are the bytes I'm reading from the serial stream.  I'm fairly confident that the checksum is summing only bytes 3-16.  I've updated my parser to handle both cases, but this is obviously not the optimal solution.

Throttle at Zero Bytes:
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00
39 9F 00 87 05 FD 0A 00 0E 00 13 55 16 00 1A 00

Full Throttle Bytes:
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0B 9F 03 55 05 FC 0A 01 0E 01 13 55 16 00 1A 00
0B 9F 03 55 05 FC 0A 01 0E 01 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00
0A 9F 03 55 05 FC 0A 01 0E 00 13 55 16 00 1A 00

Thanks again for the quick reply.

#3 Trains, Cars, R/C » RX31c Firmware » 2016-01-29 19:24:23

geams13
Replies: 3

I recently ordered four RX31c (K1)  from your website and I'm having some problems with them.  The instructions that come with them says they are running software version 351-2.

First, when I bind a transmitter to them, they appear to be in in DSMX mode and not DSM2.  Is there a way to revert to DSM2? 

Second, the serial protocol described on the link from your website appears to be outdated.  Looking at the binary stream, it appears as though the checksum no longer includes summing Byte 2 (signal quality).

And finally, the receiver appears to run fine for a minute or two (solid LED), but then it seems to timeout and the LED blinks quickly.  There is no online documentation for the version of firmware installed. Can you point me to accurate documentation?

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