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Questions tagged [rom]

Read-only memory (ROM) is a class of storage medium used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty.

Read-only memory (ROM) is a class of storage medium used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distribute (software that is very closely tied to specific hardware, and unlikely to need frequent updates).

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Fastest way to test modified Android source code?

I am going to buy the Nexus 5 when it is available in my country. I then want to make changes (mostly UI) to the Android source code and run it on my phone. My question is: how do I fastest test the code I have modified? Do I need to compile and…
Simon Zettervall
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Single application custom Android ROM

I find this question a couple places on the web, but never with a good answer. Let me be specific in the questions asked. I want to build a custom Android ROM which only features one app. This app is not to interact with any hardware (per now). This…
vault
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Out of space while building android Rom

I'm getting the below error while making system.img there are all files like boot.img, vendor.img but not system img Allocating group tables: done Writing inode tables: done Writing superblocks and filesystem accounting information: done…
Prashanth K
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How to install app silently on Android devices?

So, I found this answer here by #CommonsWare about allowing an app to install apps silently to the phone like Google Play does. There, it is mentioned that the app should be either signed with the firmware-signing certificate or so, or add the app…
TroublingCushion
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Boot from flash-rom with qemu-system-arm

Is it possible to emulate boot from flash memory using qemu-system-arm? (Using Integrator/CP motherboard) I'm able to boot using qemu's -kernel option, but if I try using an option such as -pflash, qemu generates an error telling me that I must use…
Joe D
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update android rom programmatically

I have a requirement that goes like this: We have custom Android devices with custom ROM installed on them. I need to be able to install an update for this custom ROM through an app. What I was thinking to solve this problem was to download the…
jacatanog
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How do Video Game Emulators Work?

I am curious as to how emulators work. What are they written in? Does it have to emulate even the graphics? How do people get the games uploaded as roms? Do they simulate the systems OS?
user1327203
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Why are flash sectors of ROM smaller at the starting address?

Recently been working a lot with flash ROM, and I've found consistently within both within the internal flash of a chip and even with external SPI flash devices, that sectors are usually sized in a pattern like so: I'm curious as to why the…
Capn Jack
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Build AOSP 7 with restricted App installing access

I want to build AOSP for a device and sell it to someone. But I want the ROM to not allow installing any apps (except some my own apps) via sideloading or another way. How can I restrict app installing access? Do I have to write a setting app and…
Saleh
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Python: Code for VHDL Code Generator

I am trying to make a ROM in VHDL language, I am using this template I found on http://www.edaboard.com/thread38052.html : library ieee; use ieee.std_logic_1164.all; entity ROM is port ( address : in std_logic_vector(3 downto 0); data : out…
Peterstone
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How To Disable Native Toast Messages

I am creating an application that implements a remote. One of the buttons on the remote turns the volume up and down. I have this button on the remote do something different because adjusting the volume in my application is irrelevant. So, my…
Ethan
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Cyanogenmod: custom port not booting (stuck before boot animation)

I'm currently building a custom cyanogen port (CM 12.1) for a china phone (Mann Zug 5S for that matter). I've been able to build a working recovery and I've been able to build a ROM. The ROM installed fine so far, but as it gets to booting, I'm…
Phil
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How is BIOS ROM accessible at 0xFFFFFFF0 if A20 line is disabled by default?

I was reading about A20 line http://wiki.osdev.org/A20_Line, which seems to indicate that A20 line is disabled by default. On Pentium, if 0xFFFFFFF0 is the address put out immediately after hard reset, does it mean that A20 line is enabled by…
Kamalakshi
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NtOpenSection(L"\\Device\\PhysicalMemory") returns STATUS_OBJECT_NAME_NOT_FOUND

I am implementing SMBIOS reading functionality for Windows systems. As API levels vary, there are several methods to support: trouble-free GetSystemFirmwareTable('RSMB') available on Windows Server 2003 and later; hardcore…
Anton Samsonov
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Self updating android system application with root access

I have created my custom ROM from aosp. I have also included my application, lets call it myCustomInstaller.apk (1.0) in the custom ROM while building. The application basically is kind of Google play Store. The application has system privileges and…
Madjokr
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