HCS errors with Kaifa meters

[gnumfen]

I'm having problems decoding data from two Kaifa meters. The exception I'm getting is "HCS is not correct Calculated".

This is data from first meter:
7ea09b01000110561be6e7000f40000000090c07e7090401103400ff800000021209074b464d5f30303109103733343031353730313132353335343409084d41333034483444060000044f0600000000060000000006000000c0060000088f06000005aa060000057c06000008da06000008f906000008e6090c07e7090401103400ff8000000608c141c9060000000006001ae03806013151959d787e
This is data from the second meter:
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

As far as I can see there is more data in the header then on other meters.

[Krolken]

Hi.

I see a problem in the parsing of hdlc frames.

The meter is using a 1 byte and a 2 byte address, but when we calculate the hcs we are forcing the 2 byte address to a 1 byte address.

We should instead keep track of the initial length of the address so we can encode the address properly.

[gnumfen]

Hi
I have done a attempt at fixing my problem. It is in my kaifa-branch in the cloned repo.
I'm not very proud of the change in data_notification.py...