2016-09-29 04:37:06 +08:00
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Title: CoAP client
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Description:
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A simple CoAP server showing how to retrieve information from a resource.
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This demo assumes that the platform of choice has networking support,
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some adjustments to the configuration may be needed.
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This sample will make a GET request with path 'test' to the IPv6
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multicast address reserved for CoAP nodes, so the URI can be
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represented as:
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coap://[ff02::fd]:5683/test
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--------------------------------------------------------------------------------
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Building and Running Project:
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This project will print all the octets of the response received, more context can
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be obtained by using a tool like tcpdump or wireshark.
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See the net-tools[1] project for more details.
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It can be built and executed on QEMU as follows:
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2017-01-08 05:31:34 +08:00
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make run
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2016-09-29 04:37:06 +08:00
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[1] net-tools:
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https://gerrit.zephyrproject.org/r/gitweb?p=net-tools.git;a=tree
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--------------------------------------------------------------------------------
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Troubleshooting:
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Problems caused by out-dated project information can be addressed by
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issuing one of the following commands then rebuilding the project:
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make clean # discard results of previous builds
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# but keep existing configuration info
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or
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make pristine # discard results of previous builds
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# and restore pre-defined configuration info
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-------------------------------------------------------------------------------
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Sample output:
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reply: 60 00 00 00 00 24 11 40 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe
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15 01 01 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe 15 01 01 16 33 16 33
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00 24 3d 86 60 40 00 01 ff 54 79 70 65 3a 20 30 0a 43 6f 64 65 3a 20
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31 0a 4d 49 44 3a 20 31 0a (76 bytes)
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<the values may be different>
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