Lista

I chased down EMI problems with A20-Micro in the past. We were using inside and enclosure with some sensitive ADCs. Had no access to a DSA, but main causes in my case were(in order of importance): -Power supply- We had a switching wall-wart type supply @12v. Replaced with battery, then with a better quality power supply. Ferrites on the supply cable helped a lot too. -Buck converter on board the A20-Micro is noisy- Try powering board by the 5v_Ext pins (obviously don't exceed 5v) If you get an improvement, please share another shot from your DSA.

Thank you for the response. I've read through some of the docs today, trying to understand the details well enough to understand your answer. I am failing in this. Id appreciate if someone could explain furhter. Is it possible to run the olimex 7"/10" RGB LCDs with Armbian Mainline? I cannot see definitive answer in the docs. I know that olimex images have a simple script to alter FEX? settings for display. How is this done in Armbian? I'm going to start learning the process of building an image. Maybe I can then ask better questions...

I want to use an ADAU1979 with an olimex A20-Micro. Needs to show up as a device in ALSA, alongside the in- built CODEC - As far as I can see, this driver is in mainline kernel but I have no idea how to configure the kernel build to include it. Obviously we need to tell the system where its i2s/SPI interface is connected etc. Unsure which kernel version (legacy or mainline) to begin with. We do need a desktop environment and the olimex 10"/7" LCD to work also... I am starting this from a position not having built a kernel or kernel modules before so If this idea is a non-starter, someone please tell me so. Thanks.