Hi guys, am having some issues replacing the HL8548 with any of the above options. As far as I know, they are drop in replacements, so have loaded one of each on my existing dev board, where the HL8548 was working great. But I don’t seem to be able to establish coms over UART1 with any of them, I get nothing back. The 1V8 output looks OK - I can see it coming up when the PWRON pulse is sent, but after this, no response. Any ideas about why this might be or what I might be missing?