# How can I debug a programmable XBee module?

**URL:** <https://forums.digi.com/t/how-can-i-debug-a-programmable-xbee-module/17771>\
**Category:** XBee Programamble (S2C & 900 HP)\
**Tags:** debugging, xbee\
**Created:** [December 5, 2016, 11:38am UTC](https://forums.digi.com/t/how-can-i-debug-a-programmable-xbee-module/17771 "2016-12-05T11:38:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gomtuu](https://avatars.discourse-cdn.com/v4/letter/g/7feea3/32.png) [@gomtuu](https://forums.digi.com/u/gomtuu)\
**Post date:** [December 5, 2016, 11:38am UTC](https://forums.digi.com/t/how-can-i-debug-a-programmable-xbee-module/17771/1 "2016-12-05T11:38:19Z")

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Since the serial debug port doesn’t seem to be available on these modules, what is the best way to perform debugging after downloading a program?

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**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [December 5, 2016, 11:48am UTC](https://forums.digi.com/t/how-can-i-debug-a-programmable-xbee-module/17771/2 "2016-12-05T11:48:22Z")

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You need to use the BDM Debugger for that function.