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Readme: add description for zero copy demo

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Add a subchapter to describe how to run the rpmsg echo demo using the
nocopy API.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
This commit is contained in:
Arnaud Pouliquen
2020-12-04 14:04:58 +01:00
committed by Arnaud Pouliquen
parent 063ae70eef
commit 347397deca
1 changed files with 11 additions and 0 deletions
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README.md
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@@ -147,6 +147,7 @@ directory.
* If you have used `-DWITH_APPS=ON` to build the demos, you can try them on
your Linux host as follows:
* rpmsg echo demo:
```
# Start echo test server to wait for message to echo
$ sudo LD_LIBRARY_PATH=<openamp_built>/usr/local/lib:<libmetal_built>/usr/local/lib \
@@ -156,6 +157,16 @@ directory.
build/usr/local/bin/rpmsg-echo-ping-shared 1
```
* rpmsg echo demo with the nocopy API:
```
# Start echo test server to wait for message to echo
$ sudo LD_LIBRARY_PATH=<openamp_built>/usr/local/lib:<libmetal_built>/usr/local/lib \
build/usr/local/bin/rpmsg-nocopy-echo-shared
# Run echo test to send message to echo test server
$ sudo LD_LIBRARY_PATH=<openamp_built>/usr/local/lib:<libmetal_built>/usr/local/lib \
build/usr/local/bin/rpmsg-nocopy-ping-shared 1
```
### Example to compile Zynq UltraScale+ MPSoC R5 generic(baremetal) remote:
* build libmetal library on your host as follows:
* Create your on cmake toolchain file to compile libmetal for your generic