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by muelli
Mon Jul 15, 2019 6:38 am
Forum: General discussion
Topic: RPi 4 : Lost GPIO-3 restart (and fix)
Replies: 27
Views: 4606

Re: RPi 4 : Lost GPIO-3 restart (and fix)

Fantastic to read about this fix and the confirmation it works :) It was mentioned the shut down Pi 4 will consume more power than the Pi 3 after applying this fix, has anyone checked how much it actually is? Thanks folks, that is why I think the Raspberry is the device to buy. Great support from th...
by muelli
Mon Jul 08, 2019 6:22 am
Forum: General discussion
Topic: RPi 4 : Lost GPIO-3 restart (and fix)
Replies: 27
Views: 4606

Re: RPi 4 : Lost GPIO-3 restart

Thanks for the update on this topic! Very excited to hear there is work in progress to enable this feature not only on 1,2,3 but also on 4.
I have 18 Pi 3b+ working here and need to move to Pi 4 as soon as this is fixed :) I need more power for my project ^^

Thanks again!
by muelli
Sun Jun 30, 2019 2:31 pm
Forum: General discussion
Topic: RPi 4 : Lost GPIO-3 restart (and fix)
Replies: 27
Views: 4606

Re: RPi 4 : Lost GPIO-3 restart

Oh I just asked this question in another thread.
I was wondering about this as well, because I need this function too.

Would be quite horrific for my application here with several Pi's, if this cannot be done anymore :/
by muelli
Sun Jun 30, 2019 2:01 pm
Forum: General discussion
Topic: Pi 4 - Wake from halt?
Replies: 0
Views: 147

Pi 4 - Wake from halt?

Hello forum.,

does somebody know, if the new Pi 4 supports Wake from Halt on the same pins as the Pi2/3 ?

Thanks!
by muelli
Sat Apr 15, 2017 5:11 pm
Forum: Troubleshooting
Topic: Raspbian, running shutdown script trouble
Replies: 6
Views: 918

Re: Raspbian, running shutdown script trouble

I wiped my SD card and reinstalled from scratch, because I thought I messed something up somewhere, but still no success.
This is incredible, can it be that hard?
by muelli
Thu Apr 13, 2017 7:56 am
Forum: Troubleshooting
Topic: Raspbian, running shutdown script trouble
Replies: 6
Views: 918

Re: Raspbian, running shutdown script trouble

Thanks!

I tried to move it up the chain to K01 but again no success..
Hope someone can point me in the right direction.
by muelli
Wed Apr 12, 2017 9:21 pm
Forum: Troubleshooting
Topic: Raspbian, running shutdown script trouble
Replies: 6
Views: 918

Re: Raspbian, running shutdown script trouble

Anyone?

"Bueller? Bueller?" ;)
by muelli
Wed Apr 12, 2017 1:07 pm
Forum: Troubleshooting
Topic: Raspbian, running shutdown script trouble
Replies: 6
Views: 918

Re: Raspbian, running shutdown script trouble

actually, there is.
because K08umountroot does not "unmount" the root fs but remounts it "ro" only :)
by muelli
Wed Apr 12, 2017 12:45 pm
Forum: Troubleshooting
Topic: Raspbian, running shutdown script trouble
Replies: 6
Views: 918

Raspbian, running shutdown script trouble

Hi Forum, I have trouble getting a shutdown script to run under Raspbian 8 (jessie). I want the script to be run before K09halt, but after K08umountroot. First I tried to place my script into /etc/init.d and add runlevels in /etc/rc0.d and named it K09deactivate, so it should be run just before K09h...
by muelli
Mon Feb 06, 2017 5:14 pm
Forum: Other projects
Topic: Cheap Raspberry Pi 2 - Wake from halt with IR remote
Replies: 0
Views: 410

Cheap Raspberry Pi 2 - Wake from halt with IR remote

Hi, sometimes it happens, that I shutdown my Pi 2 (running openElec) by accident and then I have to get my lazy butt from the couch to the pi and reset it using the power supply. (Yes, I was to lazy to fit the reset switch) Well, I thought it would be a great idea if I could wake/boot the Pi using o...
by muelli
Sun Jan 17, 2016 10:49 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 198187

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

OK I found the schematic.... >>For lcd module v2 schematic is identical only thing that is different, is the LCD FPC different signal layout. But signals to LCD FPC from U1,U2,U3 are kept unchanged. So if you solder to U1,U2,U3 pads from shift register and control signals then it must work. What is ...
by muelli
Sat Jan 16, 2016 12:11 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 198187

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

Hello saper_2,

does the final hack work permanently?
is there a schematic somewhere on how to modify the v2 display? I just saw your pictures und going from there is kind of difficult :)
How fast is the display with the fbtft driver? Did you run a test?

thanks!
by muelli
Sun Dec 13, 2015 3:49 pm
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

I replaced the plasma and HDMI cable with a HDMI->VGA adapter and my trusty 24" TFT. Same result, still tearing. So display hardware can be ruled out I think. edit: I replaced the complete chain (Raspberry, SD Card, Powersupply) with the devices from a friend, same result. At his home he sees the sa...
by muelli
Sat Dec 12, 2015 5:16 pm
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

OK, tried your binary. Same problem.
With all tried binaries it does not matter if I use double size/scan or the tiny window, always the tearing effect.
by muelli
Sat Dec 12, 2015 10:34 am
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

>>Mmm, I've not noticed any 'Tearing' even using SDL rendering, your correct in your assumption, dispmanx is an API that improves rendering so it sounds like you may be a Monitor issue. Usually it only effects input Lag, but does you TV/Monitor have a 'GAME' Mode? If so, that may help! dispmanx does...
by muelli
Fri Dec 11, 2015 6:08 pm
Forum: Gaming
Topic: Using a Joystick with no microcontroller
Replies: 12
Views: 2064

Re: Using a Joystick with no microcontroller

Use a multimeter to find out which pins to use. I do not know If you have to use the NO or NC pins, just try it.
For the kernel module you could use this one:
https://github.com/RetroPie/RetroPie-Se ... 9_gpio_rpi
It also shows how to connect the Joystick to the GPIO
by muelli
Fri Dec 11, 2015 3:20 pm
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

Hm, what should I say, it is there with the own compiled version + retropi version on a standard wheezy but NOT in the retripo image. There must be something different there... Right now I am compiling again with some modifications mentioned in https://www.raspberrypi.org/forums/viewtopic.php?f=41&t...
by muelli
Fri Dec 11, 2015 3:05 pm
Forum: Other projects
Topic: C64 emulator
Replies: 103
Views: 74952

Re: C64 emulator

I have to get this old thread back up, because I have a tearing problem using sdlui with vice 2.4 as mentioned here: https://www.raspberrypi.org/forums/viewtopic.php?f=78&t=69353&sid=5284e35cb73f4892397c906d8e8a1f39 As far as I understood, the modifications posted here could be the solution to this ...
by muelli
Fri Dec 11, 2015 12:34 pm
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

Thanks, I got that far but could not find anything relating to vice or the x64 version used in RetroPi. I found a recent info (03/2015) about libretro only being able to run C64 games via MESS: http://libretro.com/forums/showthread.php?t=2188 So I think that excludes RetroArch and libretro from the ...
by muelli
Fri Dec 11, 2015 12:03 pm
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

Thanks!
That sounds as if I have to get the retroarch version and compile this. Any idea where to get it?
So far I could not find it....
by muelli
Fri Dec 11, 2015 10:12 am
Forum: Gaming
Topic: VICE - A ‘Beginners Guide’ to Compiling and using the commodore 64
Replies: 18
Views: 27094

Re: VICE - A ‘Beginners Guide’ to Compiling and Using

I have built Vice 2.4 with sdlgui (no other configure/make option used) on the rpi1 but I have a strange problem. scrolling is not as smooth as it is with vice from the retropi images. I copied the settings and still, horizontal and vertical scrolling "flickers" somehow, if my screen moves. does som...
by muelli
Thu Dec 10, 2015 6:01 pm
Forum: Gaming
Topic: Multi-console gamepad driver for GPIO
Replies: 488
Views: 151659

Re: Multi-console gamepad driver for GPIO

Thanks, it worked :)
by muelli
Thu Dec 10, 2015 4:21 pm
Forum: Gaming
Topic: Multi-console gamepad driver for GPIO
Replies: 488
Views: 151659

Re: Multi-console gamepad driver for GPIO

Is there already a header package for 4.1.14+ ? I tried to download the rpi kernel myself und preparte it, the modules build OK, but when I try to modprobe db9_gpio_rpi I get [email protected]:~/db9# modprobe db9_gpio_rpi map=1,1 Message from [email protected] at Dec 10 17:14:19 ... kernel:[ 3021.2...
by muelli
Wed Apr 03, 2013 12:52 pm
Forum: Python
Topic: Radio link with GPIO possible?
Replies: 17
Views: 7367

Re: Radio link with GPIO possible?

I tested 2400, 4800, and 9600. 2400 appears to work. 4800 has an obvious error (illegal character) every couple of lines or so. 9600 is full of illegal characters with the occasional piece of ungarbled text. How did you set serial port AMA0 to baud rate of 2400 etc? If I try to set baud_base with s...
by muelli
Fri Mar 29, 2013 4:00 pm
Forum: C/C++
Topic: I2C LCD using C
Replies: 53
Views: 40616

Re: I2C LCD using C

Problem solved! The examples in the datasheet do _not_ mention to set the correct timing using signal E. Here is the code for: -initializing the display as 4bit, 2 lines, char set 0 (5x8) -turn display on and enable cursor line -set mode to increment address by one and to shift the cursor to the rig...

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