From 38bd25699750e7f58fdb54b419e6e8b079ea00f8 Mon Sep 17 00:00:00 2001
From: Yakun Xu <xyk@google.com>
Date: Wed, 7 Nov 2018 02:31:14 +0800
Subject: [PATCH] [posix-app] update README.md for USB=0 (#3272)

---
 src/posix/README.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/posix/README.md b/src/posix/README.md
index 4c9e7d5f1..41a15045a 100644
--- a/src/posix/README.md
+++ b/src/posix/README.md
@@ -44,6 +44,29 @@ make -f examples/Makefile-posix
 
 #### nRF52840
 
+* USB=0
+
+```sh
+make -f examples/Makefile-nrf52840
+arm-none-eabi-objcopy -O ihex output/nrf52840/bin/ot-ncp-radio ot-ncp-radio.hex
+nrfjprog -f nrf52 --chiperase --reset --program ot-ncp-radio.hex
+nrfjprog -f nrf52 --pinresetenable
+nrfjprog -f nrf52 --reset
+
+# Disable MSD
+expect <<EOF
+spawn JLinkExe
+expect "J-Link>"
+send "msddisable\n"
+expect "Probe configured successfully."
+exit
+EOF
+
+./output/posix/x86_64-unknown-linux-gnu/bin/ot-cli /dev/ttyACM0 115200
+```
+
+* USB=1
+
 ```sh
 # without USB=1 may result in failure for serial port issue
 make -f examples/Makefile-nrf52840 USB=1