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Hi all.

I'm trying to compile and load my own RFM2Pi_v2 firmware.

I'm following the wiki and I can successfully load RF12_Demo_atmega328.cpp.hex.

However, when I try to recompile it (I did add the lines in boards.txt and select the right target), I don't get a bit-exact copy of it.

The .hex I generate can be loaded, but I don't receive any value.

I can identify a difference in the logs.

Working version, RF12_Demo_atmega328.cpp.hex:

2014-03-01 12:06:23,841 INFO Setting RFM2Pi | frequency: 4
2014-03-01 12:06:24,845 INFO Setting RFM2Pi | sgroup: 210
2014-03-01 12:06:25,848 INFO Setting RFM2Pi | baseid: 15
2014-03-01 12:06:26,878 INFO Serial RX: > 4b
2014-03-01 12:06:27,082 INFO Serial RX: ^A
2014-03-01 12:06:27,085 WARNING Misformed RX frame: ['\x01']
2014-03-01 12:06:27,290 INFO Serial RX: > 210g
2014-03-01 12:06:27,494 INFO Serial RX: ^A
2014-03-01 12:06:27,496 WARNING Misformed RX frame: ['\x01']
2014-03-01 12:06:27,701 INFO Serial RX: > 15i
2014-03-01 12:06:27,923 INFO Serial RX: ^A
2014-03-01 12:06:27,925 WARNING Misformed RX frame: ['\x01']

The version I compiled:

2014-03-01 11:54:03,909 INFO Setting RFM2Pi | frequency: 4
2014-03-01 11:54:04,912 INFO Setting RFM2Pi | sgroup: 210
2014-03-01 11:54:05,916 INFO Setting RFM2Pi | baseid: 15
2014-03-01 11:54:06,960 INFO Serial RX: > 4b
2014-03-01 11:54:07,169 INFO Serial RX:  A i1 g210 @ 433 MHz o0
2014-03-01 11:54:07,179 WARNING Misformed RX frame: ['A', 'i1', 'g210', '@', '433', 'MHz', 'o0']
2014-03-01 11:54:07,387 INFO Serial RX: > 210g
2014-03-01 11:54:07,596 INFO Serial RX:  A i1 g210 @ 433 MHz o0
2014-03-01 11:54:07,600 WARNING Misformed RX frame: ['A', 'i1', 'g210', '@', '433', 'MHz', 'o0']
2014-03-01 11:54:07,806 INFO Serial RX: > 15i
2014-03-01 11:54:08,033 INFO Serial RX:  O i15 g210 @ 433 MHz o0
2014-03-01 11:54:08,036 WARNING Misformed RX frame: ['O', 'i15', 'g210', '@', '433', 'MHz', 'o0']

(Yes, I should add cases in the gateway code to handle these frames correctly instead of generating those warnings...)

At least this shows my .hex is correctly generated. I mean it can run. Looks more like a code issue. Except, of course, I didn't modify the code in this first test. I'm trying to have it working before doing my modifications.

In fact, I'm wondering about those A i1 g210 @ 433 MHz o0 lines.

• They don't appear in the working version.
• I find lines in the code that would generate that, but then, does this mean the compiled version on GitHub does not correspond to the code ?
• I don't understand how the code generates this exact string: I don't see the "Lock" string printed.

OK, now I understand the A and O: In ASCII, @+1 = A, @+15 = O.

Serial.print('@' + id,DEC);

But I still don't get the "Lock" issue.

Could there be something wrong happening while "Lock : 0" gets printed ?

Any hint appreciated.

Thanks.