Quick post from my phone -- existing PCMCIA card cages from random laptops are a dime-a-dozen on fleaBay, if you want to go that route. They would likely need minor modifications to the keying, but that's hardly a showstopper.
Ron, did you see my previous email? I have an LCD panel that may work for you, to replace the original in the Eee - but I won't know if it's compatible, without that part number. If it *is* compatible, I'll ask you to cover shipping costs and that's all.
I know /almost/ for a fact that my display will work with an EOMA68 card, as it takes a parallel TTL input -- somewhere I think I have the datasheet -- I just need your part number to know if they are physically interchangeable without getting out the craft knife... I suspect the aspect ratios are different, though -- mine is straight SVGA (800x600), and IIRC, Eee PC netbooks were always widescreen -- either 800x480 or 1024x600...
On Feb 11, 2018 4:40 PM, "Pičugins Arsenijs" crimier@yandex.ru wrote:
This post is about modifying an asus eeepc 7inch notebook into accepting a pc card. You are invite to contribute.
Following up on the "RK3399" email:
For your information, I am in a censorship dispute with lkcl. I do not know what he will come up with. Maybe some or all of my posts will be stopped.
I'm going to get an EEEoma Wiki up in the following week and start documenting everything there; if you end up losing posting privileges, feel free to email me directly.
I do not follow lkcl's opposition on this.
He's trying to make sure that the resulting design is safe and 1) won't ruin reputation of EOMA68 2) will be a good reference design for other designers that want to make EOMA68-compatible things, so that their designs won't ruin the EOMA68 reputation.
It is a weller sp 40l 40w.
It seems to have a wide tip, so I'm wondering if it's suitable for soldering things like a 0.8-pitch connector... We'll see. At worst, you can get a working soldering iron for $5 from China, and a set of good tips for $5 more.
In case I did not mention it before. I have a raspberry pi 0 and a beaglebone black revision c if that could be useful.
Those could be useful for testing, I think.
I still have the asus eeepc's mainboard.
That's great =) So we likely can harvest a couple of chips from it if necessary.
The pocketchip's keyboard is an i2c keyboard. Is the asus eeepc's keyboard also an i2c keyboard?
The pocketchip's keyboard, just like the EEE PC keyboard, is not I2C by itself - it's a key matrix, and there's usually a controller that connects to this key matrix. In PocketCHIP's case, it talks I2C - in case of EEE PC, that controller is a part of Embedded Controller on the EEE PC mainboard (which controls a whole load of functions), so we're making our own controller by taking a microcontroller, putting it on a board with a 28-pin connector and writing a firmware for it.
Instead of modifying the asus eeepc's keyboard into an usb keyboard, what about i2c connecting the keyboard to the pc card?
Either that, or use PS2 - since we likely will have a PS2-USB chip anyway (for the touchpad). The benefit of using PS/2 is that we won't need to write our own kernel driver - however, we will need to find a way to reliably source PS2-UAB converter chips, or converter boards.
To my knowledge you can use the beaglebone black revision c to test i2c devices.
You can also use the Pi Zero for the same task, if I understand you correctly (just FYI).
I have this forestalled remark. I would prefer not to cut in the asus eeepc's cabinet. If I do it wrongly, I do not have another cabinet.
Hmm. That's tricky - I was planning to suggest the "cutting" approach, but I don't know of a good way to cut into the cabinet so that it's easy and mistake-proof. Thankfully, I have 2 spare cases to experiment with, and I have some ideas =)
Instead at the bottom of the asus eeepc there is a removable plate. There is a balk which likely can be removed. I would prefer to insert the pc card by that plate.
I'll measure it and see if it's suitable - that is, if we can even insert the card. I can't yet imagine how it would work, but I will think about it. (the space inside the EEE case is quite limited, so there's only so many ways to keep the card in).
I have not been able to find something like the pcmcia/eoma 68 breakout board. Should we not find a shop to buy one?
I haven't yet found PCMCIA breakouts (or EOMA68 breakouts, for that matter), so it's not a commodity item, and I'm guessing that places that have them will have it at high prices, just because it's not that popular. Lkcl has breakouts listed on Crowdsupply, but I imagine there's some time until they will be manufactured and available. Until that, we can either work on other tasks - and, later on, we can design our own breakouts if it proves necessary.
Cheers! Arsenijs
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