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  PineTime display
Posted by: soyrunner - 10-28-2019, 08:14 AM - Forum: General Discussion on PineTime - Replies (1)

For those of us getting on in years and small displays harder to read, is the pseudo analog display only an option that can be switched to a simple large font digital time and date?

soyrunner


  Pinebook 11" Keyboard
Posted by: Corkonian - 10-28-2019, 04:54 AM - Forum: Pinebook Hardware and Accessories - Replies (2)

For reasons unbeknownst to me, the first row of the alphanumeric keyboard (1234....) packed in. Some random letters in the other rows as well.
Any clue on how to solve that as I want the Pinebook to survive at least until the Pro arrives....


Question u-Boot location on the disk
Posted by: tsago - 10-28-2019, 04:30 AM - Forum: General Discussion on Pinebook Pro - Replies (5)

(I've initially intended to ask in the Linux-specific sub-forum, but I guess this is not limited to Linux only. Corrections welcome)

To be ready for un-bricking my horrible experiments that are bound to come, I'm slowly working on gathering information on how this wonderful creature boots.

Mrfixit (thanks!) clarified on IRC that the u-Boot bootloader is stored in an off-set on the eMMC, not directly accessible (~not in one of the two actual partitions, I assume).
So my questions would be:
- Where is it exactly?
- How do I find it?
- How do I recognize that I have actually found it?


I have also had a look at the ChromiumOS image, and in it, there are two interesting files in /boot: boot.scr and bootloader.bin.
(disclaimer: I'm away from the PBP and SD card, so I may be misremembering the filenames. Corrections will follow.)
When I run "file boot.scr", this is identified as an u-Boot bootloader image. The other file is simply data.
==> this brings a side-question: can the bootloader then be stored completely in the /boot partition? Or am I misunderstanding the purpose of these two files?

Upon further googling and reading, I've stumbled upon these links:
https://linux-sunxi.org/Bootable_SD_card
https://linux-sunxi.org/Mainline_U-Boot

These suggest specific places on the eMMC for the location of u-boot. I have also noticed that there are "gaps" at the beginning of the mmcblk1 disk and between the two "readable" partitions.
I've tried to copy various amounts of data from the above start locations using dd into a file and then tried to identify them with "file", but had no luck so far.

Am I looking into the wrong place?
Am I applying a completely wrong approach to find and identify u-Boot?

Ultimately, the question can be boiled down to: Once I have a u-Boot binary, where do I put it on the disk?
Apologies if these questions are too dumb, but I sort of figured this might be useful to document somewhere on the forums/wiki.


  PinePhone wireless charging?
Posted by: soyrunner - 10-27-2019, 02:04 PM - Forum: PinePhone Hardware - Replies (9)

Will this be possible with an adapter?  Or is there some inherent flaw in wireless charging, e.g. excessive heat ruining the battery?


Lightbulb Future device suggestion: smaller form factor
Posted by: MotoFufu9k - 10-27-2019, 12:15 PM - Forum: PinePhone Hardware - Replies (6)

Hello

I personally am very interested in the PinePhone and would actually buy it as soon as possible, if there wasn't one thing that made it unsuitable as my daily driver; That thing being the width.
The PinePhone is 76.6mm wide according to the wiki.
The highest width that I can comfortably hold in my hand is 67mm.
Which makes the PinePhone far to wide for me to somewhat comfortably use it with one hand.
I personally would be willing to sacrifice in some other aspects like thickness.

I am adding a poll to this thread to hopefully get some vague info on how demanded this feature actually is.


Information My dev environment for NRF52, with NRF52-SDK, NRF52-DK, J-Link, CMake and CLion
Posted by: JF002 - 10-27-2019, 09:20 AM - Forum: PineTime Tutorials - Replies (1)

Hello!

Coming from the STM32 and ESP32 world, I'm a total beginner as far as the NRF52 is concerned. For now, I'm still learning the MCU, the tools and the SDK.


The first thing I want to do is to create my development environment that'll allow me to write code, program the chip, debug,... It's based on CLion/CMake, it uses the NRF52-SDK and the tools from J-Link to debug and program.

This is not directly about the PineTime, but I intend to use this when I'm ready to work on the watch directly.

So, I created a little "base project" which contains the bare minimum to build, program and debug a simple blinky application. The project is here and the wiki page that gives more details is here. It might be useful for anyone who is just starting with NRF52.

For now, the master branch contains a simple blinky app, and the branch freertos is the same but using FreeRTOS.

Have fun Smile


  My PCIe disk controller works with Linux 5.3.6
Posted by: guannais - 10-25-2019, 04:53 PM - Forum: Linux on RockPro64 - Replies (1)

As said in the title, I have a disk controller LSI 9208 8i that needed some patch (pcie_rk_delay_bus_scan) to work with kernel Rockchip line 4.4 (the patch is in ayufan's kernel since april). I tried again the mainline and, finally, it works out of the box with the version 5.3.6. By the way, I have not tested Panfrost graphic driver, and I could not make framebuffer console to work.


Question lsblk devices
Posted by: tsago - 10-25-2019, 07:59 AM - Forum: Linux on Pinebook Pro - Replies (9)

I can recognize mmcblk1 / ...p1/p2, but I wonder, what are:
mmcblk1boot0
mmcblk1boot1
mmcblk1rpmb
?

Given the 16M size, I assume the last one is the SPI flash? What about the others? (both showing 4M size)
fdisk -l doesn't give me any interesting information.
Are these supposed to be interact-able in any way? 
Or am I just dumb and these are actually still the eMMC?


  Make SD Card to read-only mode
Posted by: rahulsharma - 10-25-2019, 01:42 AM - Forum: RockPro64 Hardware and Accessories - Replies (1)

Hi all experts,
According to my project that needs to be run 24x7 on my rockpro64, there was issue with OS corruption as due to power shutdown the devices was on unexpected power cycle. So i was trying to make the OS to read-only mode.

I followed this link-
https://medium.com/@andreas.schallwig/ho...c0f7be7353

I successfully done that but some system services and my docker service stoped working now.

OS -
Armbian ver5.98

Requirement-
1) I have made one app that needs to be run 24x7 and that is a docker process. So i need to access docker in RO mode.
2) I have also made a system-service(in /etc/systemd/system/my-service) that keeps on monitoring that docker app.
3) There are some file write operation need to be done in "/opt" or any other folder.

Please suggest me way to make the OS to read-only by keeping above 3 requirements.

Thanks.


  Pinephone SAR
Posted by: vituous - 10-24-2019, 08:36 PM - Forum: PinePhone Hardware - Replies (3)

I know the modem has already been picked out, that is was designed for machine to machine communication, and that it has a fairly large range of acceptable power input(not relatively but just by the numbers it seemed to me to be the case). I know lots of companies these days(Samsung and maybe LG) direct the radio waves away from the head(decreasing the head SAR ratings but seemingly increasing the body SAR ratings) and lower the power to the transmitter when the proximity sensor "senses" it is near to someone's head(seemingly as a way to get around FCC guidelines: bad stuff). My questions are simple and I hope there are answers.

1. How will the Pinephone radiation levels compare to popular phones today?
2. Does the chosen modem allow control over transmitter power levels?
3. Is there foreseen support for limiting transmit power in any of the supportive OSs?
4. Is there atleast foreseen support for disabling certain bands?
5. Is there atleast atleast foreseen support for disabling protocols(2G, 3G)?
6. This is a bonus question for anyone who can help me: why does it seem like phones who score well in the FCC SAR tests seem to do poorly on the EU SAR tests and vice versa?


Note: I would love control over the transmitter. As in a setting to stop trying to connect to cell towers if there is less than 'x' bars. This would be good for battery as well so the phone is not screaming areas with low coverage.

Note 2: I asked in Q1 how they compare because I know hard numbers are hard and that the US/CAN/AUS have different tests you have to do than in the EU(they both have head and body tests, but the watts/kg or whatever is different).

Note 3: My current laptop's touch-pad is such an EMF offender my fm radio picks up a horrid buzzing noise from 87.5 to ninety-something(if the antenna is close). Hopefully the PBP(or just a RockPro64) contains its current better and doesn't constantly make high pitched noises.