I actually think it will work without anything written to the EEPROM on the cape. But I followed this technique to put something on the EEPROM and I have used it afterwards with success. I used a recent Debian on the Beagleboard:
Ensure address switches are pushed to 11 (0x57). To obtain current contents of eeprom: cat /sys/bus/i2c/devices/2-0057/eeprom | hexdump -C To write to cape eeprom, first obtain the text to write: wget https://github.com/qunanan/GBCFBBv2-Test/raw/master/eeprom.dump Then write it to the cape eeprom: cat eeprom.dump > /sys/bus/i2c/devices/2-0057/eeprom When booting, capemgr will look for a firmware called BB-GREEN_GROVE-00A2 in /lib/firmware Even though no firmware of that name is available, the cape works anyway. Regards Peder Madsen On Tuesday, September 26, 2017 at 6:39:18 AM UTC+2, Charles Quarra wrote: > > > Does anyone have a Device Tree Overlay spec that can be used for this > cape? I cannot find anything like this anywhere, and clearly the cape > cannot be loaded without one > > On Friday, February 17, 2017 at 8:19:44 AM UTC-5, Peder Madsen wrote: >> >> I recently acquired the Seeed Grove Based Cape v2 >> <http://www.exp-tech.de/seeed-studio-grove-base-cape-for-beaglebone?___SID=U> >> which >> apparently does not have a populated EEPROM when delivered. According to >> Seed, this seems deliberate although it would be nice with a default >> configuration. As an answer to my inquiry regarding this, Seed referred to >> the EEPROM utiliity created by Josh Datko and hosted on github >> <https://github.com/jbdatko/eeprom_tutorial/blob/master/eeprom.md>. >> While I'm prepared to try my luck with this, I'll appreciate if anybody >> already equipped with this cape would be able to post a suitable image I >> could burn into my cape. >> >> >> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/d91f871f-b44a-415d-babd-9450ac04d7bc%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
