Pairing a mobile phone with VW RCD 510 / Kufatec Fiscon car radio

I struggled with this a bit, and ended up doing it right by guessing. Even though I should have read the manual to begin with. So the procedure is simple (cited from manual, page 7, “Pairing”): Turn the ignition on. Make sure the Bluetooth feature of your phone is turned on. Start the pairing procedure [...]

Gigabit tranceivers on FPGA: Selected topics

Introduction This is a summary of a few topics that should to be kept in mind when a Multi-Gigabit Tranceiver (MGT) is employed in an FPGA design. It’s not a substitute for reading the relevant user guide, nor a tutorial. Rather, it’s here to point at issues that may not be obvious at first glance. [...]

LG G4 ignoring a 5 GHz Wifi hotspot

Problem: My LG G4 (Android 5.1, kernel 3.10.49) suddenly ignored my home’s 5 GHz router. It saw the neighbors’ networks all right, but not mine. Reason for problem: I had activated the phone’s hotspot previously. It seems like that locked the Wifi hardware to the 2.4 GHz band, as it happens to transmit on 2.437 [...]