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Update hello-world README.md

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Simon Duquennoy 2017-10-31 09:20:23 +01:00
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examples/hello-world/README.md
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Hello-world A minimal Contiki-NG example, simple printing out "Hello, world".
=========== This example runs a full IPv6 stack with 6LoWPAN and RPL.
It is possible, for example to ping such a node:
This adds the hello-world process in hello-world.c to the platform build, which ```
prints "Hello-world" to stdout on startup. make TARGET=native && sudo ./hello-world.native
```
The entire platform is built, with uip stack, radio drivers, routing, etc. Look for the node's global IPv6, e.g.:
So it is not usually a simple build! The native platform is the default: ```
[INFO: Native ] Added global IPv6 address fd00::302:304:506:708
```
make And ping it (over the tun interface):
./hello-world.native ```
Starting Contiki $ ping6 fd00::302:304:506:708
Hello, world PING fd00::302:304:506:708(fd00::302:304:506:708) 56 data bytes
64 bytes from fd00::302:304:506:708: icmp_seq=1 ttl=64 time=0.289 ms
When switching between ipv4 and ipv6 builds on a platform, ```
make TARGET=<platform> clean
else the library for that platform will contain duplicate or unresolved
modules.
For example, using a loopback interface with the minimal-net platform:
cd /examples/hello-world
make TARGET=minimal-net
./hello-world.minimal-net
Hello, world
IP Address: 10.1.1.1
Subnet Mask: 255.0.0.0
Def. Router: 10.1.1.100
^C
make TARGET=minimal-net clean
make UIP_CONF_IPV6=1 TARGET=minimal-net
./hello-world.minimal-net
Hello, world
IPV6 Address: [fd00::206:98ff:fe00:232]
IPV6 Address: [fe80::206:98ff:fe00:232]
^C
Note to AVR Raven users: Output goes to UART1, not the LCD. To see it,
make TARGET=avr-raven hello-world.elf
Load the .elf in AVR Studio and connect a hapsim terminal to the 1284p simulation.