# I cant connect target device in external mode

**URL:** https://forum.plexim.com/t/i-cant-connect-target-device-in-external-mode/991
**Category:** TI C2000
**Tags:** plecs-coder, c2000
**Created:** [March 24, 2021, 2:33am UTC](https://forum.plexim.com/t/i-cant-connect-target-device-in-external-mode/991 "2021-03-24T02:33:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ToeyUK](https://avatars.discourse-cdn.com/v4/letter/t/e47c2d/32.png) [@ToeyUK](https://forum.plexim.com/u/ToeyUK)
#### Post date: [March 24, 2021, 2:33am UTC](https://forum.plexim.com/t/i-cant-connect-target-device-in-external-mode/991/1 "2021-03-24T02:33:07Z")

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![282](https://europe1.discourse-cdn.com/flex006/uploads/plecs/original/1X/59aba1d94b8782b26f9a08d684d40fa6f49fc8fa.jpeg)

I have done all the instructions step by step. I still cant operate in the external mode , My device is TMS320F28335

I dont know what is wrong

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### Author: ![Manu\_Parimi](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/manu_parimi/32/6_2.png) [@Manu\_Parimi](https://forum.plexim.com/u/Manu_Parimi)
#### Post date: [March 25, 2021, 3:44pm UTC](https://forum.plexim.com/t/i-cant-connect-target-device-in-external-mode/991/2 "2021-03-25T15:44:54Z")

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Hi Toey,

I think this question is best suited for Plexim support – [support@plexim.com](mailto:support@plexim.com).

In any case, are you able to share your PLECS model? Also, how are you communicating with the 28335 board? Are you able to share pictures?

Regards,  
Manu