e-reset EPIPHANY_DEV file open failure

Discussion about Parallella (and Epiphany) Software Development

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e-reset EPIPHANY_DEV file open failure

Postby jahorin » Tue Jul 07, 2015 7:49 pm

I've clicked around a little bit on the forums to see if there are any answers for this one. I updated my esdk to esdk.2015.1 on my hdmi image (the most recent) and now running anything on the Epiphany is causing issues. The problems are on the Desktop parallella running the hdmi-14.04-hdmi-z7010 image. Commands below:
Code: Select all
$ e-reset
e-reset: e_init(): EPIPHANY_DEV file open failure.
e-reset: e_init(): Failed to initialize the Epiphany Shared Memory Manager
e-reset: ee_write_esys(): EPIPHANY_DEV file open failure.
e-reset: e_reset_system(): Failed

e-reset: e_finalize(): Platform was not initiated.


Anyone know what went wrong?
Thanks!
jahorin
 
Posts: 18
Joined: Wed Jun 03, 2015 5:19 pm

Re: e-reset EPIPHANY_DEV file open failure

Postby tnt » Wed Jul 08, 2015 11:27 am

Are you sure it's even supposed to work ?

IIRC there was some changes in the way the e-link works and so the 2015.1 SDK might require the latest FPGA images, none of which support HDMI.

I'm pretty sure you also need the latest kernel with the /dev/epiphany driver rather than the /dev/mem access used in previous SDK.
tnt
 
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Joined: Mon Dec 17, 2012 3:21 am

Re: e-reset EPIPHANY_DEV file open failure

Postby jahorin » Wed Jul 08, 2015 2:13 pm

there was some changes in the way the e-link works and so the 2015.1 SDK might require the latest FPGA images, none of which support HDMI.


Ah that makes more sense. Thanks for the reply!
jahorin
 
Posts: 18
Joined: Wed Jun 03, 2015 5:19 pm


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