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1055 cannot do RC5x codes

Posted: Wed Sep 28, 2011 10:00 am
by abra01
I need to control several devices in an automation project. One of these is the Marantz NR1501, which uses RC5-ext codes.
I need to send the following code:
extended-command:62 (dec.)
(select game input)

When learning, the phidget reads 20 bits, although the code is no longer than a normal RC5 code (just 1 instead of 2 start bits, and a different first bit). Codes which are normal RC5 can be learned with no problem.

Learning raw code and retransmitting does not work.
I've tried sending a raw code, calculated from Pronto codes, and this didn't work either.

* how can I directly send an RC5x code?
* how can I transmit a raw RC5 code (examples may help)

RC5x looks like:

Complete codes for the device can be found at ... tId=NR1501

p.s.: my college encountered the problem using LabView, I've tried to use Visual studio/C++ starting from the simpleIR example.

Re: 1055 cannot do RC5x codes

Posted: Wed Sep 28, 2011 10:13 am
by Patrick
Do you have access to the remote to capture the raw data? You should be able to re-transmit this data. Also, make sure you change the carrier frequency to 36kHz.

RC5x is probably not transmittable other then by raw code.


Re: 1055 cannot do RC5x codes

Posted: Thu Sep 29, 2011 5:25 am
by abra01
I managed to get it working, by connecting an oscilloscope to the receiver (near U2 label) and writing down low/high pairs
(880, 1760 for short/long pulses) and checking if this matches the code.

This finally worked.

The learning bit seams not well functioning. It misses part of the code and introduces a lot of jitter.