Posts made by Ghent The Slicer

It is not possible. In addition to the missing socket, there are other components missing, some are under the shield.

@Chris-Stratton no need to bash Onion for the WiFi driver. The root of the problem is Mediatek. They provide proprietary driver, with no source code. If you are lucky and sign a stack of NDAs Mediatek may let you peek at the source, but the NDA strictly forbids distributing the source of the driver.

Strictly speaking the LEDE license does not prohibit a vendor from distributing binary drivers, so that is that. Sad as it is.

It is exactly the same story with the LinkIt-Smart module - based on the same SOC. Binary wifi driver and that is it. Don't like it - don't use Mediatek hardware.

The u-boot source code is another matter. @Lazar-Demin there is no much excuse for not providing updated u-boot repo. Please nudge the corresponding individuals.

@Luz, the Omega 2S looks awfully similar to the HLK-7688A module (http://www.hlktech.net/product_detail.php?ProId=70). @Lazar-Demin for the 2S+ did you use the same SPI FLASH chip which had the 4b/3b addressing problem?

You can order via the indiegogo campaign. it is dog slow, but works.

Yes, they would ship you stuff. It is quite slow, but they ship it eventually.

You are probably using the wrong git branch (try omega2 or onion-omega2). Try the original lede project depot. The omega2 support is in the main branch.

post your /etc/config/wireless file

Another avenue you can try is to program the spi flash with a series of "spi" commands. Try "help spi", but you'll have to write a tool to issue the commands one by one.

Btw. I was not able to get the Ethernet to work on the Omega2s, so I can't try tftp.

I'm waiting for my ethernet dock - hopefully that would work.

@perillamint
What +Chris said. There are two commands cp.linux and cp.uboot - both are available on the omega. Both commands take no parameters.

They copy whatever was loaded with tftp at address 0x80100000 and write it to the corresponding flash partition.

So in theory, you should load the desired firmware with tftp at address 0x80100000, then erase the flash partition and issue cp.linux and that should write it. Again in theory.

@perillamint Keep in mind the console on the LinkitSmart is on Serial 2, while the Omega2 is Serial 0.

You guys like to live dangerously. This has a good chance of bricking the omega2. If only there were some Onion people around to help with the JTAG pins or the u-boot source...ping ping, nudge nudge..

Does anyone have the pinout for the JTAG connector on the Omega2s?

It is hard to say - there is no much data on the Rocki thing.

That said USB sound card is a sure bet - you can get a really good quality one. Just check that it is supported by Linux.

Both use digital audio - no much difference there. The USB could be a bit higher latency. With the USB you can get more channels, the i2s is stereo only.

I'm not sure about the original Omega. However you can buy more Omega2 stuff via the indiegogo campaign. They take long to ship though. I ordered some stuff mid January and it will ship the end of February.

A few things I forgot to mention. The LinkIt smart user a proprietary wifi driver from MediaTek, which presumably has better perf than the opensource mt76, however that causes other issues like not being able to rev the kernel.

In my opinion the Onion team has put more thought in the software packages for the Omega, the Linkit is more bare-bone.

Oh and I got the i2s to work on the Omega 2 as well. I personally prefer the Omega2, it has some kinks, but I like solving problems. However only you can decide what works best for your project.

Oh did I mention the pins on the LinkIt are standard spacing (2.54mm)

I have both of them. The LinkIt smart can be used easily with no dock, has onboard regulators and two micro usb ports - one for power and one host port. There is a dock which would give you ethernet and audio in/out.

The LinkIt is larger than the Omega2s. Specs are similar to Omega2+. Thy have a model with onboard Arduino, I don't have experience with it.

The LinkIt is more expensive than the Omega2s at $13. It has older software kernel 3.18 from the OpenWRT branch. Omega is based on LEDE, kernel is 4.4. LinkIt has opensource bootloader, the Omega does not. I prefer the uBoot from the LinkIt - it is faster to flash from the USB drive and has richer functionality.

I was able to get the i2s audio working with the LinkIt, not yet with the Omega2. Other than that they are both very similar. Support is sparse on both. LinkIt documentation is hosted on the MediaTek site, but forum questions are met with silence or vague answers - the community is smaller than the Omega.

Forgot to mention, the Omega2 is running way hotter than the LinkIt smart. Not sure why but it makes quite a bit of heat.

Edit the file /etc/config/wireless
Add 'option disabled '1' to the radio and all other interfaces.

Correct. The MT7688 SoC which is the heart of the Omega2s does not have a video controller. The chip is targeted at the network router market - it has a cornucopia of network interfaces.

CHIP is better suited for the task, so are the Orange Pis as well as the Raspberry Pi and many other boards.

Molex 503398-1892 is the correct socket, however there are other components that need to be soldered. I counted 5 10k resistors next to the micro sd socket.
2 filter caps under the shield and maybe others.

So soldering the micro-sd socket is not preactical

@Theodore-Borromeo soldering flash chip could be major PITA, because you'll have to remove the metal shield first.

@Costas-Costas the ability to connect to an access point is in the minimal package. There is no GUI for it. You will have to edit two files:
/etc/config/wireless
and
/etc/config/network

Here is my network file. I disabled the lan bridge and the ethernet, since I don't use them. The configured the wireless wlan0 to use dhcp.
http://pastebin.com/FkN5nrAk

Here is my wireless config. My network uses WPA2. The LEDE web site has decent docs on these files.
http://pastebin.com/UgUDRsis