- 04 May, 2025
QEMU SPI NOR flash with SWUpdate recovery
In the QEMU Custom SPI peripheral post the support for SPI controller for Cubieboard was introduced. A custom SPI peripheral was developed to demonstrate basic functionality. QEMU comes with out-of-the-box support for several different SPI peripherals, one of which is the SPI NOR flash memory, modeled after M25P80 chip, but supports different variants, from various manufacturers and memory sizes. ...
- 17 Apr, 2025
Enabling USB for Cubieboard QEMU
Embedded systems support various serial or parallel interfaces for communication. In some of the posts in MistraSolutions blog interfaces like SPI and I2C were covered. Today, one more serial interfac ...
- 30 Mar, 2025
Making initramfs image with Yocto
Embedded systems can have different types of persistent (non-volatile) storage, like eMMC, SD card, NOR or NAND flash memory. Each storage type has advantages and disadvantages with regards to the rea ...
- 20 Oct, 2024
Custom SPI peripheral in QEMU
In previous posts the process for creating a custom memory mapped and I2C peripheral in QEMU was shown. In this post we will go through the process of creating a new SPI peripheral, and userspace supp ...
- 21 Jul, 2024
SWUpdate for Cubieboard QEMU
Software update is an important part of design of modern embedded systems. It allows faster time to market, since fixes, security or stability updates or even new features can be pushed to the devices ...