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Messages - hendrik

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Evaluation Tools / Re: NHD-7.0CTP-CAPE - BBB does not start up properly
« on: February 06, 2018, 03:58:02 AM »
There is no output during boot process when the cape is attached, since it just shuts down immediately. I tested it with 2 bbbwl on 2 capes. SD cards are xlyne microSD HC class 10 and a sandisk ultra hc class 10, both 16gb, but usually not in use, because I boot from mmc. To me it looks like some start-up overcurrent issue with a shutdown caused by OSD3358 power management chip.
I tried disconnecting the SYS_5V on startup and attached it after boot process. With this configuration the bbb boots properly and the display can be used, but this is obviously way too uncomfortable.

Additionally I tried it with a BBB (non wireless) and everything works fine out of the box.

Evaluation Tools / NHD-7.0CTP-CAPE - BBB does not start up properly
« on: February 05, 2018, 05:20:44 AM »
I have trouble with NHD-7.0CTP-CAPEs. I am using them with a beagleboneblack wireless. When I plug in the 5V power supply (3A) to the bbb while it is connected to the display, the display and the bbb power LED start to blink, but the beaglebone won't boot. The problem occurs with any software I tried so far. I have one beaglebone with android 4.2 installed which starts sometimes after some blinks, but this happens randomly and by far not every time I plug it in. Any suggestions why the displays do not work properly?

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