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Sad How to open the pinetab case
Posted by: geeksville - 10-28-2020, 06:56 PM - Forum: PineTab Hardware - Replies (1)

Hi ya'll,

Related to this question, does anyone know the recommended way to remove the back of the pinetab case?  I want to poke around inside.


  Looks like I found a mild reason why UBPorts for pinephone hasn't seen much progress.
Posted by: plainenough - 10-28-2020, 09:25 AM - Forum: UBPorts on PinePhone - Replies (13)

https://forums.ubports.com/topic/2403/pinephone

Looks like one of the main threads on the ubports forums was updated notifying a de-prioritization. Not sure when this happened, but it makes sense that we haven't a lot of changes recently. This would explain why the issues board has gone stale and why it seems to be no changes for at least a few weeks on the dev builds. With this in mind, I still don't consider this OS fully abandoned still don't consider the pinephone integration abandoned and will maintain a quiet eye looking for updates. Until I come across something that shows activity prioritization on their channel I am going to indefinitely suspend my QA testing for this OS so I can expand into other candidates.

EDIT: Clarity, I know the OS in general isn't abandoned, but Dalton had bigger fish to fry.

EDIT 2: Changed title to add 'for pinephone'


  Recovery from bad SPI flash image
Posted by: hmuller - 10-28-2020, 08:22 AM - Forum: RockPro64 Projects, Ideas and Tutorials - Replies (2)

Purpose

Experimentation with SPI flash and u-boot can/will result in a board that will not boot.

Background

To recover from this it is necessary to prevent booting from SPI. This can be done by shorting the flash chip's clock pin to ground. This will allow you to boot to micro SD card so that you can either erase the bad image or erase/write a new one. Erasing and writing images to SPI flash are beyond the scope of these instructions as it is assumed the user successfully flashed the SPI NOR with a bad u-boot image or images.

It is also assumed you have the following:

  • A separate host with a serial connection to the RockPro64
  • A micro SD card with a known good u-boot installed on it (and possibly fixed u-boot image files placed in a partition to reflash SPI NOR)
Preparation

Turn the RockPro64 off before continuing.

Press and hold the Power button for approximately 10 seconds. If the RockPro64 is connected to a network switch, the network switch LED representing the RockPro64 connection will turn off. If you are not set up that way and cannot observe this, then holding the power button for the 10 seconds duration is long enough to turn the board off.


Pin Shorting Methods

Pi-2 GPIO

This method is the easiest and preferable method.

Connect pins 23 and 25 using a jumper or female-female jumper wire.

SPI Flash Chip

The asterisk represents the indentation on the chip (which identifies pin 1). The code rendering is broken, so the ASCII graphic below cannot be fixed, but you will get the general idea which pin is which.

Code:
+------------------+
     |*                 |
CS --- 1            8 --- VCC
     |                  |
SO --- 2            7 --- HOLD/RESET
     |                  |
WP --- 3            6 --- SCLK
     |                  |
VSS --- 4            5 --- SI
     |                  |
     +------------------+
GD25Q127CSIG

Connect pins 6 and 4 using a Pomona 5250 clip and female-female jumper wire. Micro hook test clips could also be used to short the two pins.

Final Recovery

Once the SPI flash pins have been shorted using one of the methods above, insert the known good micro SD card into the the board's slot and power it on. Hit any key on the keyboard to prevent u-boot from trying to autoboot, once it stops at the u-boot prompt you can either erase the SPI flash, or erase/write a new image to it AFTER you have removed the short between the pins.


  Wifi stopped working after updates
Posted by: pineitup - 10-28-2020, 06:33 AM - Forum: General Discussion on Pinebook Pro - Replies (10)

I have recently set up an SD card with the most recent Manjaro 20.10 and it connected to the Wifi with no problems at all just last night. Then I was prompted to update some of the software through the software update manager so I've let it run until completion.
After a restart the wifi stopped working -- It doesn't connect to the last network it used to and the wifi menu that pops out of the bottom doesn't show any networks to be available (the list is empty).
I made sure the wifi hardware switch is off.
How can I fix this?

Thank you!


  Pinephone Solar Project Battery Extension 10000mAh
Posted by: Diyoshi - 10-28-2020, 05:29 AM - Forum: General Discussion on PinePhone - No Replies

I would like to add a back shell solar power bank to my Pinephone and know some specs.

Is it possible to add the battery of the Pinephone to a power bank Via the VBAT GND pins?

Are there any values to take into account? (Voltage - amperage)

I was thinking 3.7v-4.2v, 10000mAh

it's possible?


  Enabling internal USB expansion power
Posted by: geeksville - 10-28-2020, 03:10 AM - Forum: PineTab Hardware - Replies (3)

Hi ya'll,

So I'm a pinetab noob trying to make lora go. I have some questions about the internal USB hub routing.


The block diagram on page 2 of the schematic says "SATA SSD" port(?) connected to the four port internal usb hub (via HOST-DP2/DM2):

[Image: HrZ08pT.png]

But if I look on page 16 of the schematic is says that the "Docking" port is connected to port DP2/DM2 on the hub.  Also the docking portion of the schematic seems to have presence sensing to control power for that port.  So I assume it really is the "docking" connector for the keyboard add on.

[Image: HwU7wxr.png]
So is the correct internal expansion port actually the "usb host" connected to HOST-DP1/DM1?
If so, I suspect the reason I don't see my lora device is that I need to turn on GPIO0-LDO on the PMIC?  Does anyone know how to do that yet?  (Or even how to get pmic status in /proc or somesuch so I can poke around?

Alternatively: Is there a recommended way to open the case on the Pinetab (so I can physically look to confirm that the Lora board that was supposed to be installed is actually present  Smile )

Thanks much!



Bug Porting lora (meshtastic) to Pinetab, some questions...
Posted by: geeksville - 10-28-2020, 12:37 AM - Forum: PineTab Software - Replies (2)

Hi ya'll,

So I just received my pinetab (with an alpha version of the Lora radio module).  I'm eager to port meshtastic to your slick board but I admit I haven't been following pinetab development closely.  

I'm reasonably experienced with linux driver development (though not this year) and I think I can handle that part, but I have some questions on distribution choice etc...  Any advice would be appreciated:

* What OS distribution should I target initially? - I assume the development branch of the "ubuntu touch" that came preinstalled on the tablet?
* I will need to build and distribute an (improved) version of the CS341 driver for the USB/SPI chip used in this radio.  Where would be best to provide that for others (a .deb?)

My general current (crummy) plan is here.


  Pinebook pro crashing when put to sleep?? [Manjaro]
Posted by: edward - 10-27-2020, 10:52 PM - Forum: Linux on Pinebook Pro - Replies (13)

What is happening: trying to put pinebook pro to sleep results in complete death of the laptop. Power light goes off, screen goes off and it absolutely refuses to come back alive. I have to hold the power button for 7 seconds, and turn it back on to get to to work. Otherwise it absolutely refuses to show any signs of life.

What I tried: removing swap file completely

Started happening since I ran the updates through software updater. Before that it was working fine for a good week since I first got the laptop.

Given I am a beginner at linux, I am not even sure how to begin to debug something like that. Any help would be appreciated.


  Installing Archlinux
Posted by: try2bgr8 - 10-27-2020, 06:10 PM - Forum: General Discussion on Pinebook Pro - Replies (1)

I am having problems getting ArchLinux installed on my Pine Book Pro. I've follows the instructions at boot of these locations
https://github.com/nadiaholmquist/archis.../README.md
https://www.bencode.net/posts/pinebook/

I can reliably boot from the sdcard and mount the root partition and arch-chroot into it, but I can only get the amber light when trying to boot from the eMMC.

Does anyone have any ideas on what I could start looking at to get this working?


  RockPro64 eMMC mrfixit to 5.9
Posted by: rthorntn - 10-27-2020, 04:38 PM - Forum: Linux on RockPro64 - Replies (1)

Hi,

I just received my RockPro64, very cool, I want to use it with a 10GbE NIC.

I tried a few distros but rockpro64-debian-mrfixit-190531 was the only one I could get booting from eMMC.


I upgraded to Debian 10, the kernel stays at 4.4, trying to upgrade to a Debian kernel fails (thankfully) probably because the partition is RO.

OK so I see a rock64 5.9 here, as debs:

https://github.com/ayufan-rock64/linux-m...l/releases

Any idea if this 5.9 supports booting from eMMC, if so, what is the easiest way to get this kernel deployed, right now I'm just connected up with a keyboard and monitor, can I just remount RW, I read something that suggests I have to interrupt the boot and do something in u-boot but I'm unsure on that, if I have to do it this way, do I have to use a serial console or something?

Cheers
Richard