Microzone Protocol Support

[richardclli]

Microzone protocol Radio: MC10 Receiver: MC9002 (M2 sub-protocol) Chip used: A7105

Will provide SPI dumps in this issue.

[richardclli]

Dump for controller switch on without receiver, chip init sequences.

Switch-On.zip

[richardclli]

The Microzone supports 6 different sub-protocols, and now only the first 4 (M1,M2,M3,M4) is used, M5 and M6 is reserved.

I have summarized the A7105 commands from M1 to M6 in the attached Excel file.

M1 is quite different from others. M2 and M3 are quite similar. M4-M6 uses a different payload size.

Switch-On-SubProtocols.xlsx

[richardclli]

Dump for binding a receiver (M2 subprotocol)

1. Power on receiver
2. Press binding button and let receiver goes in binding mode
3. Start SPI capture
4. Power on radio
5. Bind done

Bind.zip

[richardclli]

For channel encodings, M2 sub-protocol can support max 8 channels:

Payload length: 11 bytes Bits per channel: 10 bits Ch1 = packet[0] + (packet[1] & 0x03) << 8 Ch2 = packet[1] >> 2 + (packet[2] & 0x0F) << 6 Ch3 = packet[2] >> 4 + (packet[3] & 0x3F) << 4 ......

Final byte is always 0, not sure whether it has other purpose.

[richardclli]

@pascallanger Interested in working out this protocol together?

[richardclli]

Freq Hoping seems follows a fixed sequence: 0x11, 0x61, 0x4D, 0x9D, 0x25, 0x75, 0x07, 0x57, 0x1B, 0x6B, 00x39, 0x89, 0x2F, 0x7F, 0x43, 0x93

[pascallanger]

Sure we can have a look. I've been quite busy lately so don't expect prompt responses.

[richardclli]

Sure we can have a look. I've been quite busy lately so don't expect prompt responses.

No problem, I will work out more details first.

[richardclli]

@pascallanger Could you suggest which protocol source code is best for me I start the coding?

[pascallanger]

I think you need to create a new protocol.

[richardclli]

I think you need to create a new protocol.

Yes, any suggestion on which protocol source should I copy and code for this new protocol.

[MRC3742]

Not sure if this helps but I have an older Airfield branded Microzone (MC6DR) receiver that binds and operates on the Kyosho - Hype sub protocol.

This was out of an Airfield Corsair 1450mm RTF plane and the MC6S TX FCC ID comes up as a Microzone Product.

This protocol may be the same as the M1 of your MC10 ?

Rich

[richardclli]

Thank you for your information. Let me verify this.

Not sure if this helps but I have an older Airfield branded Microzone (MC6DR) receiver that binds and operates on the Kyosho - Hype sub protocol.

This was out of an Airfield Corsair 1450mm RTF plane and the MC6S TX FCC ID comes up as a Microzone Product.

This protocol may be the same as the M1 of your MC10 ?

Rich

[richardclli]

@pascallanger Not sure if you may have some time to take a look on what is captured. I may need some guide in doing the programming.

[pascallanger]

Have you ever finished this protocol ?

[richardclli]

Not yet, better to get some help from you.

[pascallanger]

Sure, can you explain me what you've done so far? (Sorry just trying to catch up with things lately)

[richardclli]

I just captured the SPI, then try to find the samples of M1 to M6 receivers, but can only got a M2. Well, we can just work out M2 first, anyway. So please see if you may have time to take a look to the SPI dumps attached with this issue, thanks.

[pascallanger]

Ok so let's go for M2

[richardclli]

Ok so let's go for M2

Yeah!

[richardclli]

@pascallanger So we can start with the spi dumps attached with this issue.