From b0ab167f0356c63c08304350f9ed442114d56ec4 Mon Sep 17 00:00:00 2001 From: Andy Date: Tue, 18 Sep 2018 22:50:21 -0300 Subject: [PATCH] Update README --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index 63ab4ac..984908c 100644 --- a/README.md +++ b/README.md @@ -30,6 +30,8 @@ This software is licenced under the GPL v2 and is intended for amateur and educa - High RX BER or not RX, poor TX audio (4FSK modes): adjust frequency offset, specially RXOffset. - Poor audio with MD380: increase DMR deviation to 55 % or 60 %. - Bad RX sensitivity: this is not a firmware issue, ADF7021 has a minimum signal detection around -109 dBm in DMR, but RX performance depends on RF board design, external RX noise, frequency, etc. At the moment only original ZUMspot RPi can reach the best RX sensitivity in 70 cm band. +- Not working with RPi 3B+ (USB): be sure your firmware version is >= 1.4.8 and update to new USB bootloader with long reset pulse (make stlink-bl, for example). +- Not working with USB (not RPi 3B+): compile with disabled "LONG_USB_RESET" option, and use old bootloader (make stlink-bl-old, for example). ## Duplex boards