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authorThomas Tsou <ttsou@vt.edu>2011-08-19 14:50:55 -0700
committerThomas Tsou <ttsou@vt.edu>2011-08-19 18:30:38 -0700
commit893f946b7a652497994309092fe84fb33504852c (patch)
tree064fa60b78a04565ba559a29a2f7bf824b63473e /gr-uhd/grc
parentdc16937c935f10a16de8969ca592b6019639d52b (diff)
gr-uhd: add async metadata source block
Add asynchronous message "block" that is independent of normal gnuradio scheduler. The block instantiates a thread to wait for asynchronous messages from UHD and encapsulates them in a gr_message posted into a message queue. The interface is empty because the block is internally driven and accessed through the the constructor specified message queue.
Diffstat (limited to 'gr-uhd/grc')
-rw-r--r--gr-uhd/grc/Makefile.am1
-rw-r--r--gr-uhd/grc/uhd_amsg_source.xml24
-rw-r--r--gr-uhd/grc/uhd_block_tree.xml1
3 files changed, 26 insertions, 0 deletions
diff --git a/gr-uhd/grc/Makefile.am b/gr-uhd/grc/Makefile.am
index 7e73a5b392..42a35b1c19 100644
--- a/gr-uhd/grc/Makefile.am
+++ b/gr-uhd/grc/Makefile.am
@@ -31,6 +31,7 @@ BUILT_SOURCES += $(generated_uhd_usrp_blocks)
dist_grcblocks_DATA = \
uhd_block_tree.xml \
+ uhd_amsg_source.xml \
$(BUILT_SOURCES)
########################################################################
diff --git a/gr-uhd/grc/uhd_amsg_source.xml b/gr-uhd/grc/uhd_amsg_source.xml
new file mode 100644
index 0000000000..78c9d7b58e
--- /dev/null
+++ b/gr-uhd/grc/uhd_amsg_source.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<block>
+ <name>UHD: USRP Async Msg Source</name>
+ <key>uhd_amsg_source</key>
+ <import>from gnuradio import uhd</import>
+ <make>uhd.amsg_source(device_addr=$dev_addr, msgq=$(id)_msgq_out)</make>
+ <param>
+ <name>Device Addr</name>
+ <key>dev_addr</key>
+ <value></value>
+ <type>string</type>
+ <hide>
+ #if $dev_addr()
+ none
+ #else
+ part
+ #end if
+ </hide>
+ </param>
+ <source>
+ <name>out</name>
+ <type>msg</type>
+ </source>
+</block>
diff --git a/gr-uhd/grc/uhd_block_tree.xml b/gr-uhd/grc/uhd_block_tree.xml
index 8a9f62f7cb..5d3b493936 100644
--- a/gr-uhd/grc/uhd_block_tree.xml
+++ b/gr-uhd/grc/uhd_block_tree.xml
@@ -10,5 +10,6 @@
<name>UHD</name>
<block>uhd_usrp_source</block>
<block>uhd_usrp_sink</block>
+ <block>uhd_amsg_source</block>
</cat>
</cat>