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by cia48621793
Fri May 01, 2015 3:13 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I have a TFT LCD board and what I should do with it
Replies: 8
Views: 1656

Re: I have a TFT LCD board and what I should do with it

There's a ready built DT overlay that should work with that TFT. Add dtoverlay=rpi-display,rotate=90 to /boot/config.txt. shutdown wire it to the SPI interface using CE0/CS0 wire the following pins: rst ==>gpio23, rd or wr? ==> gpio24, backlight led => gpio18 reboot So: SCK -> GPIO 11 (PIN 23) MOSI...
by cia48621793
Sat Apr 25, 2015 3:28 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I have a TFT LCD board and what I should do with it
Replies: 8
Views: 1656

Re: I have a TFT LCD board and what I should do with it

OK, so I have the documentation now, but I doubt if I could read it, I'm not that professional, can some one read it for me?
http://puu.sh/hpTuZ/ae83209684.pdf
by cia48621793
Tue Apr 07, 2015 12:32 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I have a TFT LCD board and what I should do with it
Replies: 8
Views: 1656

Re: I have a TFT LCD board and what I should do with it

The seller said it was ILI9486 for the TFT controller...
by cia48621793
Tue Apr 07, 2015 11:39 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I have a TFT LCD board and what I should do with it
Replies: 8
Views: 1656

I have a TFT LCD board and what I should do with it

Image

That's the TFT board I have brought for $30. But how do I use that? I know GND and 3V3 but, I don't know the rest of them.
by cia48621793
Mon Mar 30, 2015 12:42 pm
Forum: General discussion
Topic: USB 3.0 support
Replies: 36
Views: 119963

Re: USB 3.0 support

Before we had USB 3.0, let's have eMMC first. USB3.0 controller is still costly nowadays.
by cia48621793
Fri Mar 27, 2015 1:31 pm
Forum: General discussion
Topic: Can I install custom TFT monitor with GPIO in Pi?
Replies: 0
Views: 309

Can I install custom TFT monitor with GPIO in Pi?

I know there's a lot of GPIO TFT shield out there, yet they are small(3.5-3.8 inch) and cost-ineffective(>$25) which is not really compatible with the project I was doing. I could have bought a 4.6 inch TFT with controller board (ILI9486) for $30, however I haven't played the powerful-yet-difficult ...
by cia48621793
Sat Feb 28, 2015 7:25 am
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6947

Re: How much does actually Pi 2 cost?

One of the more interesting clues recently is the https://www.youtube.com/watch?v=L991wyOHTJ4 Raspberry Pi Guy interview with Eben Upton. Starting around 5:48, they talk about the Pi 2 A; Eben specifically says that they could make a list $25 Pi 2 A w/ 512 MB RAM right now, but they really want to ...
by cia48621793
Sat Feb 28, 2015 7:06 am
Forum: General discussion
Topic: Is a quad core really 4 times faster than a single core?
Replies: 22
Views: 4764

Re: Is a quad core really 4 times faster than a single core?

I think Arch Linux is a good choice. Unless you're a new Linux user and have never encountered Arch or Linux before. It's also a right royal pain to install after the Arch folks stopped building SDCard images. Small and simple are: raspbian-ua-netinst (which is well established) and Raspbian Diet-P...
by cia48621793
Fri Feb 27, 2015 4:08 pm
Forum: General discussion
Topic: Is a quad core really 4 times faster than a single core?
Replies: 22
Views: 4764

Re: Is a quad core really 4 times faster than a single core?

aTao wrote:Guess I'll have to get one and torment it with weather forecasting.
Is there a minimal OS for it yet?
I think Arch Linux is a good choice.
by cia48621793
Sun Feb 22, 2015 3:27 am
Forum: General discussion
Topic: Help with RP2 and PocketMine
Replies: 4
Views: 2528

Re: Help with RP2 and PocketMine

Wait, in Raspbian you only have one account in default, and that is root, so what I have told above were bulls. Anyway, you are facing permission problem with your file, this one should fully solve the problem chmod -R +x /home/pi/mine/bin/ Before you distribute or want to redeploy your PocketMine ...
by cia48621793
Sun Feb 22, 2015 3:19 am
Forum: Gaming
Topic: LWJGL(Minecraft Retail) in RPi 2?
Replies: 3
Views: 1263

Re: LWJGL(Minecraft Retail) in RPi 2?

roadrunner7 wrote:Are you talking about getting the full version of Minecraft on Rashpberry Pi 2?
but there are a lot of full version of Minecraft out there, and we only have PC version gift code selling in shop so I think it was Minecraft Retail.
by cia48621793
Sat Feb 21, 2015 5:30 pm
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6947

Re: How much does actually Pi 2 cost?

They've just advertised for a new charity CEO at £100k a year. http://www.cambridge-news.co.uk/Raspberry-Pi-foundation-Cambridge-advertises-new/story-26001955-detail/story.html hundred thousands for a CEO/year? It seems the foundation is not a crazy at money at all... Back to the front, how do you ...
by cia48621793
Sat Feb 21, 2015 5:08 pm
Forum: Raspbian
Topic: recompile QEMU for raspberry 2 to use 4 cores
Replies: 7
Views: 7116

Re: recompile QEMU for raspberry 2 to use 4 cores

Performance-wise they are quite close for general purpose use, thanks to the quad core ARM, but when it comes to emulation, single-core performance is what counts, so the Pi 2 would most likely be considerably slower for that purpose than an old Atom netbook. Emulating x86 too is necessary on the P...
by cia48621793
Sat Feb 21, 2015 1:31 am
Forum: Raspbian
Topic: recompile QEMU for raspberry 2 to use 4 cores
Replies: 7
Views: 7116

Re: recompile QEMU for raspberry 2 to use 4 cores

one core of Core i3 of any version already beat the CPU of Pi 2. Silly comment; but to respond - Cost, size and power requirements ? ;) The closet Intel CPU for Pi 2's is N270 my guess, N270 runs Linux and Hackintosh(yup) quiet well, but I have to wait for 30 seconds to boot up the Windows, even if...
by cia48621793
Fri Feb 20, 2015 1:05 pm
Forum: General discussion
Topic: Torturing a RPi 2
Replies: 5
Views: 1880

Re: Torturing a RPi 2

Me too! :P Four Xeon cores will do that, but it's not entirely realistic on a Pi. And 100000 active connections are not a realistic workload anywhere, http keepalive makes the standard situation lots of connections but only a minor portion active at any one time. In the meantime, here's a benchmark...
by cia48621793
Fri Feb 20, 2015 12:29 pm
Forum: General discussion
Topic: Is a quad core really 4 times faster than a single core?
Replies: 22
Views: 4764

Re: Is a quad core really 4 times faster than a single core?

As above, there are lots of interrelated things that will makes things between 2 and 30 times faster. Multi cores means when using the desktop all the graphics processing can be moved off the core doing your application work, so even if single threaded, you app will have more of the CPU to use. Mor...
by cia48621793
Fri Feb 20, 2015 12:22 pm
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6947

Re: How much does actually Pi 2 cost?

My Pi boards hardly ever see a mouse, keyboard or monitor. Those things don't fit well with my robots and other Pi powered gadgets. Yes I use a 10 dollar WIFI dongle for network and you need an SD card. Hardly a huge expense. I do not use Linaro or any other cross compilation tool chain. The Pi and...
by cia48621793
Fri Feb 20, 2015 11:59 am
Forum: General discussion
Topic: Help with RP2 and PocketMine
Replies: 4
Views: 2528

Re: Help with RP2 and PocketMine

launch the bash script with root permission, in Raspbian you can use sudo ./start.sh , while others such as Arch Linux or CentOS, you will have to go root using su . If you are using Raspbian, you can install the PHP from apt-get: sudo apt-get install php5 Or Arch: pacman -S php5 CentOS: yum install...
by cia48621793
Fri Feb 20, 2015 11:46 am
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6947

Re: How much does actually Pi 2 cost?

A quick "buy all from amazon" wish list gets me to £50 ($75) for a complete B+ setup: Raspberry Pi B+ Desktop (700MHz Processor, 512MB RAM, 4x USB Port) £20.80 8GB NOOBS card for the Raspberry Pi £7.51 CSL - 2m HDMI to DVI Cable £3.65 CiT USB Keyboard and Mouse Combo - Black £8.77 USB Wifi Adapter ...
by cia48621793
Fri Feb 20, 2015 10:43 am
Forum: Raspbian
Topic: recompile QEMU for raspberry 2 to use 4 cores
Replies: 7
Views: 7116

Re: recompile QEMU for raspberry 2 to use 4 cores

one core of Core i3 of any version already beat the CPU of Pi 2.
by cia48621793
Fri Feb 20, 2015 10:22 am
Forum: C/C++
Topic: using NEON gcc flags on pi 2
Replies: 11
Views: 9696

Re: using NEON gcc flags on pi 2

In Windows you will have to go Linaro, but I'm having issue with my Cygwin and MinGW, have to do a full wipe of my Cygwin for the sake of Pi 2.
by cia48621793
Fri Feb 20, 2015 10:18 am
Forum: Other languages
Topic: 中文-simplified-chinese
Replies: 86
Views: 170138

Re: 中文-simplified-chinese

真的? 中文也有坑?
by cia48621793
Fri Feb 20, 2015 10:15 am
Forum: General discussion
Topic: Torturing a RPi 2
Replies: 5
Views: 1880

Re: Torturing a RPi 2

I would like to see 100K(not kelvin, kilo) active requests in multi-core.
by cia48621793
Fri Feb 20, 2015 10:12 am
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6947

How much does actually Pi 2 cost?

I know Pi 2 was $35, but it was not a full solution, you still need a mouse, keyboard and a monitor, and of course internet. Also Linaro is required to do cross-compile. I'm also curious about how much is the parts of Pi 2, like CPU, RAM, USB port and sort, and how does the Pi Foundation profits fro...

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