# using master slave examples

**URL:** <https://forums.digi.com/t/using-master-slave-examples/11009>\
**Category:** Rabbit\
**Created:** [March 8, 2007, 1:52am UTC](https://forums.digi.com/t/using-master-slave-examples/11009 "2007-03-08T01:52:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vorr1234](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@vorr1234](https://forums.digi.com/u/vorr1234)\
**Post date:** [March 8, 2007, 1:52am UTC](https://forums.digi.com/t/using-master-slave-examples/11009/1 "2007-03-08T01:52:31Z")

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I am having trouble using the Master Slave examples provided.

- I have a RCM3100 board in both the master and slave socket on the prototype boards.

- The prototype board has been updated according to the data sheet (That is I have connected one side of R14 to the 3.3 Volt line).

- I have removed the LCD/Keypad unit .

- I have a debug cable connected to both RCM units.

- I have loaded the master RCM3100 with the sample application “MASTER\_DEMO.C”

- I have loaded the slave RCM3100 with the sample application “SLAVE\_DEMO.C”  
-Both applications successfully run however I get no communication between the boards.