cp_plus_status always "waiting"

[wolfganghuse]

Hello, i get data for topic service/truma/display_status but cp_plus_status is always waiting.

I tried RESET at CP Plus, but no change.

Any idea ?

[wolfganghuse]

I tried to work on timings on my serial connection (provided by port on FT4232H) but still there is no registration happening. I am using native USB connection with pyftdi, also tried different latency-settings. I have plenty of possibilities to configure the connection, maybe we find a suitable way to get this running...

Maybe my CP Plus has a different version which does not work with registration process ? Version-Strings: C04.03.00 0050.00 H1.02.01 0340.0b

I see a lot of not-synced blocks but then again always usable data. Within the Log-File there are two blocks of readable data, after that i run a PR SET on the CP Plus... maybe someone can help on this ?

inet.log

[skrebber]

do you have a GND-connection between all components?

[wolfganghuse]

12V/GND Stepdown -> Raspi -> USB -> FTDI Breakout -> RX/TX/GND -> TJA1020 -> 12V & LIN/GND (RJ12) -> Splitter

So i guess, as best as possible... Splitter is used from Daniels Link in the Readme

[wolfganghuse]

Hi... i changed to MPSSE Mode on the serial connection, and now i don´t receive any not a proper sync -wait for sync- anymore... Also registration works directly and i can control the heater as expected. It´s just some minor change in truma_service.py and lin.py

from pylibftdi import Device                                                        
                                                                                              
BITMODE_MPSSE = 0x02                                                                          
INTERFACE_D = 4                                                                               
                                                                                              
DIRECTION_MASK = 0x01  
                                  
self.serial = Device(interface_select=INTERFACE_D)                                    
self.serial.baudrate = baudrate                                                       
self.serial.ftdi_fn.ftdi_set_bitmode(DIRECTION_MASK, BITMODE_MPSSE) 

Within lin.py i needed to replace the .flush and empty-buffer calls...

[ImmutablLimited]

It´s just some minor change in truma_service.py and lin.py

@wolfganghuse I know this was a long time ago... is there any chance you could share the updated trauma_service.py and lin.py having a very similar problem to you.