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by DRAgon715205
Tue Sep 26, 2017 10:42 am
Forum: Compute Module
Topic: raspberry pi computer 3 CM3 JSB HOST for using what?
Replies: 3
Views: 808

raspberry pi computer 3 CM3 JSB HOST for using what?

Dear

I get a CM3 and buy a official RPI CMIO V3 board

I see a USB HOST(J14) at the RPI CMIO V3 board

But after I have seen the official information about the CM3, I just know how to use JSB SLAVE(J15).

I still do not how to use USB HOST(J14) for what

somebody konw how to use it ?
by DRAgon715205
Thu Mar 09, 2017 9:35 am
Forum: Compute Module
Topic: raspberry pi computer 3 CM3 drive 7 inch official touch scre
Replies: 2
Views: 761

raspberry pi computer 3 CM3 drive 7 inch official touch scre

How can The raspberry pi computer 3/CM3 drive 7 inch official touch screen


How driver two 7 inch official touch screen by CM3 port DISP0 and DISP1
by DRAgon715205
Wed Mar 08, 2017 7:44 am
Forum: Troubleshooting
Topic: 2017-03-02-raspbian-jessie tfp401 HDMI LCD display bug
Replies: 1
Views: 348

Re: 2017-03-02-raspbian-jessie tfp401 HDMI LCD display bug

all HDMI LCD drived by a chip tfp401 like waveshare7inch HDMI LCD (B) and 7inch HDMI LCD (C) have same problem
by DRAgon715205
Wed Mar 08, 2017 7:42 am
Forum: Troubleshooting
Topic: 2017-03-02-raspbian-jessie tfp401 HDMI LCD display bug
Replies: 1
Views: 348

2017-03-02-raspbian-jessie tfp401 HDMI LCD display bug

I use a 5 inch HDMI LCD at 2017-03-02-raspbian-jessie

The 5 inch HDMI LCD drived by a chip tfp401 can work well at a old raspbian OS

But at the lastest raspbian OS have some Color lines at the left of the LCD
And the display is not very clearly
How can I solve the problem?
display12-.jpg
display12-.jpg (9.54 KiB) Viewed 348 times
by DRAgon715205
Tue Mar 07, 2017 10:50 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Raspbian 2017-03-02 bug fbtft touch calibrate X/Y Inverted
Replies: 3
Views: 1244

Re: Raspbian 2017-03-02 bug fbtft touch calibrate X/Y Invert

I have understand why It become that The following is coming from swkim01 ------------------------------------------------------------------------------------------------------- That is because now x server uses libinput to handle input devices instead of evdev. As to coordination transformation mat...
by DRAgon715205
Tue Mar 07, 2017 10:16 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Raspbian 2017-03-02 bug fbtft touch calibrate X/Y Inverted
Replies: 3
Views: 1244

Raspbian 2017-03-02 bug fbtft touch calibrate X/Y Inverted

The lastest raspbian OS have updated to 2017-03-02-raspbian-jessie But I have some questiones at fbtft Device Tree (fbtft old driver can display ok but touch Inverted ) my LCD with touch chip xpt2046 1 The calibration file “/etc/X11/xorg.conf.d/99-calibration.conf” is not working Now. if you change ...
by DRAgon715205
Mon Mar 06, 2017 9:42 am
Forum: Troubleshooting
Topic: raspberry pi 99-calibration.conf not work Touch revers
Replies: 0
Views: 320

raspberry pi 99-calibration.conf not work Touch revers

The lastest raspbian OS have updated to 2017-03-02-raspbian-jessie But the touch can not work well ,I use waveshare 3.5inch LCD with ads7846/xpt2046 The file 99-calibration.conf can not work well, seem the file have stopped to work but it can work well at old version Raspbian the Touch reverse, touc...
by DRAgon715205
Mon Mar 06, 2017 8:38 am
Forum: Compute Module
Topic: raspberry pi CM3 Failed to run camera app
Replies: 1
Views: 446

Re: raspberry pi CM3 Failed to run camera app

The problem have been solved by using the lastest raspbian OS 2017-03-02-raspbian-jessie
by DRAgon715205
Sat Mar 04, 2017 8:55 am
Forum: Compute Module
Topic: raspberry pi CM3 Failed to run camera app
Replies: 1
Views: 446

raspberry pi CM3 Failed to run camera app

I have bought a raspberry pi computer 3 (CM3) and two RPI camera I do as the following weblink https://www.raspberrypi.org/documentation/hardware/computemodule/cmio-camera.md I drive CAM0 with using the following code raspivid -t 0 -cs 0 All OK. But when I want to use CAM1 , use the following code r...
by DRAgon715205
Mon Feb 27, 2017 5:56 pm
Forum: Troubleshooting
Topic: raspberry pi computer 3 CM3 can not enter serial Teminal
Replies: 1
Views: 271

raspberry pi computer 3 CM3 can not enter serial Teminal

I have a raspberry pi 3 model B and a CM3

Use same raspbian OS and same configure

But PI3 can enter the serial Teminal CM3 can not

I connect UART to CM3 GPIO14 GPIO15
by DRAgon715205
Thu Feb 09, 2017 4:34 am
Forum: Beginners
Topic: computer Module 3 can not boot
Replies: 1
Views: 307

computer Module 3 can not boot

I have bought a raspberry pi computer Module 3 and official mother board I download the raspbian OS from the official weblink and burn the raspbian image to my SD card But when I power the mother board, the yellow LED and red LED always are lighted And the HDMI do not have any output please tell me ...
by DRAgon715205
Wed Aug 31, 2016 4:38 am
Forum: Graphics, sound and multimedia
Topic: Why ili9486 LCD need 74HC4094 to make spi to parallel
Replies: 1
Views: 1118

Why ili9486 LCD need 74HC4094 to make spi to parallel

Why ili9486 LCD need 74HC4094 to make spi interface to parallel interface LCD but HX8357D LCD just need spi [1]. Why ili9486 LCD need 74HC4094 to make spi interface to parallel interface LCD? like this: https://github.com/notro/fbtft/wiki/SPI-interface-circuit#test-script --The 3.5inch ili9486 LCD l...
by DRAgon715205
Mon Aug 29, 2016 10:27 am
Forum: Beginners
Topic: unstable raspbian "reboot acount is locked,starting shell"
Replies: 6
Views: 601

Re: unstable raspbian "reboot acount is locked,starting shel

OK. I get it

thank all you very much
by DRAgon715205
Mon Aug 29, 2016 9:35 am
Forum: Beginners
Topic: unstable raspbian "reboot acount is locked,starting shell"
Replies: 6
Views: 601

Re: unstable raspbian "reboot acount is locked,starting shel

How can I prevent this problem? This problem is occurring so frequently I am a raspberry pi Seller Many client often say the OS cann't enter startx desktop and appear the error "reboot acount is locked,starting shell" And other say the OS work OK The OS is maked by me. I make some change for driving...
by DRAgon715205
Mon Aug 29, 2016 9:04 am
Forum: Beginners
Topic: unstable raspbian "reboot acount is locked,starting shell"
Replies: 6
Views: 601

unstable raspbian "reboot acount is locked,starting shell"

The new raspbian is often appearing the error "reboot acount is locked,starting shell" and cann't enter the startx desktop

Is It a new bug at the new raspbian OS?

How can I prevent this bug
by DRAgon715205
Wed Jun 22, 2016 1:15 pm
Forum: Beginners
Topic: Raspbmc + pitft
Replies: 7
Views: 1983

Re: Raspbmc + pitft

I arrived here through a forum post talking about touch at XBMC/kodi using pitft/"waveshare spotpear 3.5 or 3.2 LCD". I installed my pitft/"waveshare spotpear 3.5 or 3.2 LCD"ok,It dispaly and touch ok at raspbian OS. I was able to make XBMC show on my pitft/"waveshare spotpear 3.5 or 3.2 LCD" by fbc...
by DRAgon715205
Fri Jun 03, 2016 4:07 am
Forum: Advanced users
Topic: How to install a ft6206 driver at Raspbian
Replies: 20
Views: 2846

Re: How to install a ft6206 driver at Raspbian

I will design a PCB about the board.

It will take about 7days. Then I will try it
by DRAgon715205
Fri Jun 03, 2016 4:04 am
Forum: Advanced users
Topic: How to install a ft6206 driver at Raspbian
Replies: 20
Views: 2846

Re: How to install a ft6206 driver at Raspbian

OK, thank you very much

I have get my a ft6206 touch board

I will try this Driver.

Thank everyone to Contribute this progect
by DRAgon715205
Fri Jun 03, 2016 3:59 am
Forum: Advanced users
Topic: How to install a ft6206 driver at Raspbian
Replies: 20
Views: 2846

Re: How to install a ft6206 driver at Raspbian

I want to change the interrupt PIN at any time by DT driver
by DRAgon715205
Fri Jun 03, 2016 3:20 am
Forum: Advanced users
Topic: How to install a ft6206 driver at Raspbian
Replies: 20
Views: 2846

Re: How to install a ft6206 driver at Raspbian

I have a question about " dtoverlay=ft6236"

How should the INT PIN of the Capacitive screen be connected to the PIN of PI??

if I connect the INT PIN to Pi's GPIO25

Then what should I do to add it to the DT driver??
like this???
" dtoverlay=ft6236 ,int=25 "
by DRAgon715205
Fri May 27, 2016 3:13 pm
Forum: Advanced users
Topic: How to install a ft6206 driver at Raspbian
Replies: 20
Views: 2846

Re: How to install a ft6206 driver at Raspbian

I am sorry that I cann't open the Compiled version weblink that you send

Can you tell me How to make the code that you send to be a .dtbo file?

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