Go to advanced search

by Arjan
Mon Jul 31, 2017 7:59 pm
Forum: Other projects
Topic: DMX512 Console Control
Replies: 1
Views: 2410

Re: DMX512 Console Control

Better to invest in an additional Zero Open source Raspberry Pi RDM Controller with USB, DMX512 isolated board and compatible with software that supports Enttec USB Pro. http://www.raspberrypi-dmx.org/raspberry-pi-rdm-controller Or Raspberry Pi Art-Net 3 Wifi ->DMX Out / RDM Controller / Pixel contr...
by Arjan
Mon Jul 31, 2017 7:55 pm
Forum: Other programming languages
Topic: DMX Controller
Replies: 4
Views: 3382

Re: DMX Controller

I have no issue with controlling them that way but I'd like to know if I could control them via terminal or something, I'm training in crestron programming and would like my crestron controller to send commands to the Pi which controls the lights Raspberry Pi Art-Net 3 (Wifi) ->DMX Out / RDM Contro...
by Arjan
Mon Jul 31, 2017 7:44 pm
Forum: General discussion
Topic: Making a make file / installing OLA
Replies: 2
Views: 1188

Re: Making a make file / installing OLA

Building OLA 0.10.3 / Raspbian Jessie / Raspberry Pi 3 -> enabled plug-ins : usbpro e131 artnet uartdmx {rdm-tester}

https://groups.google.com/forum/m/#!top ... URIBDSX_6c
by Arjan
Mon Jul 31, 2017 7:42 pm
Forum: Other projects
Topic: DMX INPUT, RGBW output via GPIO and web control?
Replies: 3
Views: 2121

Re: DMX INPUT, RGBW output via GPIO and web control?

I have an RGBW wall mount controller that outputs DMX. I'd like to be able to bring the DMX into the pi and have it output a couple channels of PWM into an off the shelf RGBW amplifier to handle the power. I also need to be able to send commands to the pi to change the intensities of each channel. ...
by Arjan
Mon Jul 31, 2017 4:56 pm
Forum: Bare metal, Assembly language
Topic: RPI3 IMPOSSIBLE ACTIVATE OK LED
Replies: 6
Views: 2771

Re: RPI3 IMPOSSIBLE ACTIVATE OK LED

It's now done via the mailbox and given your temperature routine very easy to add to that. The hardware_led_set((int) state) is set here -> https://github.com/vanvught/rpidmx512/blob/master/lib-hal/src/hardware.c#L99 struct _hardware_led { void (*init)(void); ///< Pointer to function for LED ACCT i...
by Arjan
Mon Jul 31, 2017 4:49 pm
Forum: Bare metal, Assembly language
Topic: Reading and writing files to SD card or USB drive.
Replies: 6
Views: 3699

Re: Reading and writing files to SD card or USB drive.

The SD code is based on John Cronin's work and there is a couple of serious bugs we have discussed a number of times. The clock setting is all wrong, it trashes the pre-tune register on high speed cards and if anything calls the 1.8V dropdown it will crash because the Pi only supports 3.3v. John's ...
by Arjan
Sun Jul 30, 2017 8:29 pm
Forum: Bare metal, Assembly language
Topic: GPU Mailbox protocol
Replies: 4
Views: 1979

Re: GPU Mailbox protocol

Herewith my code for getting the SoC temperature -> https://github.com/vanvught/rpidmx512/b ... _vc.c#L239
by Arjan
Sun Jul 30, 2017 8:25 pm
Forum: Bare metal, Assembly language
Topic: RPI3 IMPOSSIBLE ACTIVATE OK LED
Replies: 6
Views: 2771

Re: RPI3 IMPOSSIBLE ACTIVATE OK LED

This https://github.com/vanvught/rpidmx512/tree/master/test-kernels generates a kernel.img and a kernel7.img with a blinker example. static void led_handler(const uint32_t clo) { const unsigned state = led_state++ & (unsigned) 0x01; console_set_cursor(1, 26); (void) console_putc((int) '0' + state); ...
by Arjan
Sun Jul 30, 2017 8:08 pm
Forum: Bare metal, Assembly language
Topic: Autodetect IO Base Address code
Replies: 3
Views: 1713

Re: Autodetect IO Base Address code

At runtime you can also check the board type and set the hardware configuration -> https://github.com/vanvught/rpidmx512/b ... re_board.c
by Arjan
Sun Jul 30, 2017 7:53 pm
Forum: Bare metal, Assembly language
Topic: Memory allocation in arm on the Pi
Replies: 4
Views: 1899

Re: Memory allocation in arm on the Pi

For baremetal and _sbrk (malloc), please check -> https://balau82.wordpress.com/2010/12/1 ... -programs/
by Arjan
Sun Jul 30, 2017 7:47 pm
Forum: Bare metal, Assembly language
Topic: Bare metal: overlay PL011 UART
Replies: 1
Views: 935

Re: Bare metal: overlay PL011 UART

In baremetal it is just setting the correct ALT function. For example -> https://github.com/vanvught/rpidmx512/b ... l011.c#L39
by Arjan
Sun Jul 30, 2017 7:43 pm
Forum: Bare metal, Assembly language
Topic: How to findo information about the current address space?
Replies: 1
Views: 743

Re: How to findo information about the current address space?

Hi Makogan,

You can get the details from the linker.
See my malloc -> https://github.com/vanvught/rpidmx512/b ... c/malloc.c

Also you can use the mailbox to get the memory size -> https://github.com/vanvught/rpidmx512/b ... _vc.c#L461
by Arjan
Sun Jul 30, 2017 7:34 pm
Forum: Bare metal, Assembly language
Topic: USB device mode
Replies: 0
Views: 455

USB device mode

Are there references to USB device mode source code?
Anyone a working gadget example ?
by Arjan
Wed Apr 05, 2017 7:08 pm
Forum: Troubleshooting
Topic: UART Dmx board with ola
Replies: 5
Views: 2707

Re: UART Dmx board with ola

dgordon42 wrote: You MUST ensure that the BitWizard dmx512 boards Serial Port connection works at 3.3V before connecting it to your Pi..
The board is directly connected to the Raspberry Pi with the GPIO header.

There is no need to worry at all about any voltages.
by Arjan
Wed Apr 05, 2017 7:03 pm
Forum: Troubleshooting
Topic: UART Dmx board with ola
Replies: 5
Views: 2707

Re: UART Dmx board with ola

- Set the gpio modes with gpio -g mode 18 out gpio -g write 18 1 gpio -g mode 14 alt0 gpio -g mode 15 alt0 I don't know where this is coming from. The DMX boards from BitWizard are bi-directional. As with proper DMX, it defaults to DMX input. When you would like to use the board with the Raspberry ...
by Arjan
Wed Apr 05, 2017 6:58 pm
Forum: Troubleshooting
Topic: UART Dmx board with ola
Replies: 5
Views: 2707

Re: UART Dmx board with ola

Hi everyone, new to the forums and I'm hoping to get a little help. I just picked up a pi3 and a dmx512 board from Bitwizard, this is the board: http://bitwizard.nl/shop/dmx/DMX-interface-for-Raspberry-pi-with-usb-(FT245RL) This board is compatible with software that supports Enttec USB. You do not...
by Arjan
Sat Feb 04, 2017 3:25 pm
Forum: Beginners
Topic: How can I play different videos at same time?
Replies: 7
Views: 2446

Re: How can I play different videos at same time?

Maybe of interest

I have written an Open Source Raspberry Pi SMPTE Timecode LTC Reader / Converter
http://www.raspberrypi-dmx.org/raspberr ... ltc-reader
The schematic is available here -> https://plus.google.com/+ArjanvanVught/ ... fXB7fnbHAg
by Arjan
Sat Feb 04, 2017 3:24 pm
Forum: Camera board
Topic: video and sound question
Replies: 9
Views: 13604

Re: video and sound question

Maybe of interest.

I have written an Open Source Raspberry Pi SMPTE Timecode LTC Reader / Converter
http://www.raspberrypi-dmx.org/raspberr ... ltc-reader
The schematic is available here -> https://plus.google.com/+ArjanvanVught/ ... fXB7fnbHAg
by Arjan
Sun Dec 11, 2016 6:19 pm
Forum: General programming discussion
Topic: DMX Lighting S/W
Replies: 10
Views: 3769

Re: DMX Lighting S/W

karrika After going through several QLC+ tutorials I see its is very strong in supporting different stage lighting fixtures. My project revolves around matrix's and I would estimate around a matrix of 3,000 pixels. Are you aware of Jinx! – LED Matrix Control ? It is great software for controlling l...
by Arjan
Sun Dec 11, 2016 6:14 pm
Forum: General programming discussion
Topic: DMX Lighting S/W
Replies: 10
Views: 3769

Re: DMX Lighting S/W

This does not sound like a DMX based lighting system at all. The way to control the LED's depends a lot of what hardware you are buying. With DMX based controls you are stuck with 512 channels for one controller. If you use RGB leds you can only control 170 LED's. Controlling such a large array sho...
by Arjan
Sun Dec 11, 2016 6:09 pm
Forum: Other projects
Topic: ArtNet to DMX node?
Replies: 13
Views: 23548

Re: ArtNet to DMX node?

The configuration for both software and hardware can be found here -> http://www.raspberrypi-dmx.org/raspberry-pi-art-net-dmx-out/configuration There is just one SPI on the Raspbery Pi header. Hence all the 4 DMX Universes are driven by a single SPI connection. Details about current and power needed...

Go to advanced search