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Questions tagged [firmware]

Firmware is the code usually stored in flash ROM and contains the instructions for communicating with the other computer hardware.

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41 views

Running SDL 1.2 based code on buster without X

Up to and including Raspbian Stretch, I could use a hacked SDL library called SDL12-kms-dispmanx by a developer called vanfanel to run SDL 1.2 code from the console without X. (See here: https://...
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23 views

Where is the GPU firmware loaded into?

According to cursory explanations of the booting process and software such as this, the small second stage bootloader on the SD card enables the GPU to access its firmware on the SD card and load it. ...
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1answer
335 views

How to revert from rpi-update to stable build

I have been using a RPi3 for the last year without any issues. I have had rpi-update as part of a regular update process (cron job). Lately I have been experiencing crashes. I started to investigate, ...
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2answers
90 views

Raspberry PI boot FAT32 arrangement

I recently thought about tinkering with Raspbian by adding an initramfs. But I have still some unresolved questions about the boot (FAT32) partition. Does the partition have to be on a specific ...
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0answers
136 views

vcgencmd is missing in arch linux

I have recently acquired a Raspberry Pi 3B+, and I have installed arch linux on it. So far, so good, but vcgencmd is missing, and I am not able to find a way to get it installed. Can somebody help me?
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How to restore backup - Nexmon troubles

I recently installed Nexmon on my Raspberry 3b+ in order to get monitor mode on my wifi-chip. Unfortunately it messed up my Wifi. I can not connect to wifi-routers. I'm a total beginner in Linux and ...
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2answers
299 views

Can a Raspberry Pi be firmware updated? Inquiring from a security perspective

Can a Raspberry Pi be firmware updated?...I have a feeling from the suggested questions I'm being offered, the answer is yes. I'm actually asking this from a security perspective, not because I ...
1
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1answer
222 views

Why is OP-TEE for Raspberry Pi3 insecure?

The OP-TEE on Raspberry Pi 3 webpage says, This port of ARM Trusted Firmware and OP-TEE to Raspberry Pi3 IS NOT SECURE! Although the Raspberry Pi3 processor provides ARM TrustZone exception ...
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1answer
376 views

What are the vcgencmd measure_clock 26 and 50?

There are 2 clock sources that are not officially (?) listed with a string id available to the vcgencmd measure_clock command. # for i in {0..255}; do vcgencmd measure_clock $i; done | grep -v "=0" ...
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1answer
420 views

Raspberry Field Firmware update?

I have a question regards a field firmware update; namely a firmware update from 0.24.0.54xxx to 1.0.0.55xxx. What do I have to consider when doing this? Which files do I have to update? overlays, ...
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1answer
228 views

What happens if throttling back doesn't help on high temperature? Does Raspberry Pi power off?

I recently asked this question asking if the temperature was handled by hardware or software and someone told me that it was handled by raspberry pi firmware (hardware). Appearently performance is ...
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0answers
101 views

In simultaneous use of SPI0 and DPI Mode 3 interfaces, can SPI0 CS0 be moved to a pin other than 8?

I am attempting to design a device using a Pi Zero which needs to connect to both an ENC18J60 SPI ethernet controller, and a VGA monitor via Mode 3 DPI and the Mincepi Pi Zero pi2vga schematic. While ...
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1answer
624 views

Decrease the sensitivity on Capacitive Touch breakout?

I have this capacitive touch sensor: https://learn.adafruit.com/adafruit-capacitive-touch-sensor-breakouts/overview And it is WAY too sensitive for my purpose. I want to have a conductive panel on a ...
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1answer
57 views

DeviceTree magic strings

I recently stumbled over the MagPi Essentials Camera. In chapter 7 "Flash photography using an LED" (p.41+), they show how to configure pin BCM17 to act as a flash for the official Raspberry Pi Camera....
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0answers
145 views

HDMI display output rendered useless on 2 different Raspberry Pi 2

Is there a way to corrupt the firmware in the Raspberry Pi ARM? I cannot understand what has happened to my 2 RPIs and I was never expecting software or the operating system being able to disable the ...
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0answers
264 views

How deep can a virtual machine like VirtualBox emulate Raspberry Pi?

Currently I have the firmware code for a device running on Raspberry Pi. I want to use a linux computer that I have to test the device out using a virtual machine like Virtual Box (To connect it to ...
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1answer
343 views

rpi-update seemed to have stopped spi and one wire

I had two programs, one using DS18b20 sensors and the One-Wire and the other using SPI. On another pi, I had a program using the camera which had an error(still not sure what the error was) fixed by ...
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2answers
2k views

Can my RPi3 running Raspbian be used to flash DD-WRT on to a compatible router

I have a Netgear router that is compatible to flash DD-WRT. I have read you can use mac windows or linux. I only have a RPi3 no other computers. Will my Rpi3 work for this? I am running the latest ...
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1answer
2k views

When trying to use a device I get a message “Direct firmware load failed”

This is about firmware that needs to be loaded into particular devices attached (usually via USB) to a Raspberry Pi, not the firmware for the Raspberry Pi itself (the GPU firmware). When the kernel ...
2
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1answer
143 views

Raspberry Pi Firmware - user updateable - which bits live on sd and which on the hardware

I'm trying to understand the firmware on the Raspberry Pi. My understanding was that firmware related only to persistent software not influenced by anything which is on any particular SD card, but it ...
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2answers
359 views

Raspberry firmware on micro sd card; file system format

I am downloading the firmware from here https://github.com/raspberrypi/firmware and I would like to know, what are the steps to burn the firmware on the micro SD card? Unfortunately, there is no ...
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2answers
648 views

Check most current RPI-Firmware available from Git Repo?

I'm trying to to retrieve most recent master version from the Hexxeh/rpi-firmware which is used by Ubuntu Mate 16.04. The rpi-update update script exist on this page but I'm unable to fishout how ...
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1answer
426 views

Bare metal: Why does the CPU automatically read instructions from the SD card?

I'm learning bare metal programming on the RPi. My main experience is from using 8-bit PIC microcontrollers. Reading from SD cards is comparatively high level. How does the CPU achieve this? Does it ...
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2answers
2k views

Raspberry Pi B+ Overclocking

Good day, May I ask if it is true that if I activate turbo on the raspi-config, the pi doesn't always run at the maximum speed at 1Ghz. Is it safe to set force turbo = 1 at the config.txt to force ...
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0answers
11 views

Taskbar flashing white after firmware update (4.4.7v7+) [duplicate]

I'm running an RPi 2 B and just updated my firmware (to 4.4.7v7+ #877), and now the taskbar (or what should be the taskbar), is just a flashing white rectangle. I've tried rebooting a few times with ...
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3k views

What could be causing “over-current change” all the sudden?

This is a Raspberry Pi 2 using a 5V 2 Amp power supply running with a LaCie 2TB USB external drive connected via the USB port. It gets its power from the USB port for the drive. The above has been ...
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1answer
1k views

Raspberry Pi-2 with mainline Linux kernel

With several nice commits landing into the mainline of Linux Kernel for version 4.5, is it already possible to compile and boot a mainline kernel (e.g. 4.5-rc6) on a Raspberry Pi 2? If yes, then what ...
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2answers
2k views

Raspberry Pi 3 usable with fully free software?

In the Free Software Foundation's May 2013 review of single board computers, the Raspberry Pi was found to have fatal flaws for use in a free (libre) software environment: The Raspberry Pi requires ...
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1answer
81 views

With Raspberry Pi is the Linux OS running in the firmware?

With Raspberry Pi is the Linux OS running in the firmware (like an OS on a cell phone) or on top of a firmware (like on a regular PC)?
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2answers
6k views

Rainbow square and influences of disable_splash=1 (or: how to get rid of the colored square)

I am currently working with a small Raspberry Pi Model A setup (and want to stick at this model until I can grab a model Zero). It was modified to be as quiet (aka black) on boot as possible which ...
0
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1answer
2k views

Where do i get drivers for a BCM 43143 dongle

I have a WiFi dongle which has a BCM 43143 chipset I'm running Raspbian Wheezy on my raspberry pi and I've tried everything I found on the internet to fix it the WiFi connection problem I can find the ...
23
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1answer
4k views

Raspberry Pi Zero usable with fully free software?

In the Free Software Foundation's May 2013 review of single board computers, the Raspberry Pi was found to have fatal flaws for use in a free (libre) software environment: The Raspberry Pi requires ...
1
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0answers
459 views

Is it possible to Flash VideoCore ROM?

If I understand VideoCore IV correctly, it contain a bootrom (and perhaps some other information in the ROM). I understand that the bootrom contain a different instruction set than ARM. I would guess ...
0
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1answer
2k views

No wireless firmware found from a Wi-PI on a Raspberry Pi?

My boss wanted me to install Raspbian through raspbian ua net install, instead of through NOOBs. It just got done installed a base-level Raspbain from sources files and its LXDE gui. However, I have ...
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5answers
1k views

Can I safely remove non-free software on a Raspberry Pi 2 running Raspbian?

I am the lucky owner of a Raspberry Pi 2 on which I installed Raspbian: $ cat /proc/version Linux version 3.18.11-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG ...
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1answer
1k views

Firmware modules not available in Raspbian os

I am working on a project. I have Raspbian installed on my Raspberry Pi. When I do sudo lsmod I have no output. I cannot use lirc and i2c module as this require firmware modules. I have to submit the ...
4
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1answer
682 views

How do I find the firmware repository commit which matches the firmware version reported by vcgencmd?

For example, vcgencmd version might report: Feb 14 2015 22:20:17 Copyright (c) 2012 Broadcom version 7789db485409720b0e523a3d6b86b12ed56fd152 (clean) (release) How do I determine which ...
3
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2answers
965 views

What firmware version will rpi-update install?

How can I determine what version of the firmware will be installed by running rpi-update, without making any modifications to the installation?
2
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1answer
237 views

Garden Automation

I am about to change my garden automation project and was wondering if anyone had experience using this rayshobby.net OpenSprinkler? Or does anyone have other good approaches for an garden automation ...
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3answers
26k views

Do I still need to purchase the MPEG-2 and VC-1 license keys for the Raspberry Pi 2?

Do I still need to purchase the MPEG-2 and VC-1 license keys for the Raspberry Pi 2? If so, will the same MPEG-2 and VC-1 licenses available in the Raspberry Pi store work with the Raspberry Pi 2?
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1answer
1k views

What firmware parts non opensource (yet)?

What parts of the RaspberryPi (A,B,B+) are not open-source (yet)? I mean any part of the device which requires some kind of software to run.
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3answers
4k views

Is it possible to flash the Pi's firmware live?

I already have few Raspberry Pi devices running Raspbian + my custom scripts. These device is internet connected and mounted at area which is hard to access, (e.g on top of a building) Over the ...
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1answer
2k views

Failed to run camera app. Please check for firmware updates

Trying to get the pi cam working with open cv per http://thinkrpi.wordpress.com/2013/05/22/opencvpi-cam-step-5-basic-use-display-a-picture/. Finally have the program built, but now I get this: pi@...
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2answers
430 views

Should I expect an error message if booting without SD card?

This question is just a sanity check. I couldn't find this information anywhere else. If I turn on the pi without an SD card attached, does the firmware print any error messages to the screen (via ...
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2answers
3k views

Raspberry pi B+ first boot

I got Raspberry pi B+ and I tried to boot by using NOOBS v1.3.10 and RASPBIAN Debian Wheezy Version:September 2014. Then I got two different problems. These are my component information, Raspberry ...
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3answers
1k views

Does the firmware update corrupt the filesystem?

I regularly make ISO images of my SD cards (for many reasons), and I have noticed that whenever I issue the rpi-update command, I can no longer make these images, instead getting this error: sudo dd ...
5
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1answer
2k views

Are the BIOS and firmware located on the SD card?

Reading this answer I get the impression both the Raspberry Pi BIOS and firmware are located on the SD card. Is that correct? What is exactly located on the SD card? There's nothing stored on the Pi ...
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1answer
9k views

Raspberry Pi Firmware version [duplicate]

How can I determine which version of the Raspberry Pi firmware is installed on my Raspberry Pi?
0
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1answer
405 views

Ethernet connection lost after starting X server

Prior to starting an X server running OpenBox, I am able to ping networks successfully. I have tested this by successfully pinging 8.8.8.8 (Google's DNS server). Soon after launching any graphical ...
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2answers
3k views

Custom firmware on Raspberry Pi?

Is there a way to use the Raspberry Pi like an Arduino? That is, without an operating system? Just connect it to the USB of your computer and download code onto it, and the next time the Raspberry Pi ...