Installing VxWorks on Raspberry Pi 4

VxWorks is used in over 2 billion devices. From automotive engines to space telescopes, it covers a wide range of high-precision industries, including embedded systems running real-time operating systems used by SpaceX. Recently, a security analysis of VxWorks was conducted, using the Raspberry Pi as a platform to create an embedded VxWorks system. This research on the security of real-time operating systems is of significant importance. This year, memory prices have skyrocketed; I initially planned to add a few mechanical hard drives, but the prices have doubled.Installing VxWorks on Raspberry Pi 4Format the SD card to FAT32 file system and copy the contents of the “boot” directory from the downloaded firmware to the SD card.Compile the u-boot binary for Raspberry Pi 4 and copy it to the SD card.$ sudo apt install gcc-arm-linux-gnueabihf$ git clone https://gitlab.denx.de/u-boot/u-boot.git$ cd u-boot$ CROSS_COMPILE=aarch64-linux-gnu- make rpi_4_defconfig$ CROSS_COMPILE=aarch64-linux-gnu- makeCopy u-boot.bin to the SD card and rename it to u-boot-64.bin.Copy the files from bsps/rpi_/boot/sdcard/ to the SD card.Copy the VxWorks kernel image bsps/rpi_4_0_1_1_0/uboot/uVxWorks to the SD card.On the Raspberry Pi 4 model, GPIO 12 and 13 (UART 5, transmit pin 32/GPIO12, receive pin 33/GPIO13) are used as UART transmit and receive pins (UART5).Connect a USB to serial adapter between the Raspberry Pi and the computer. Then start a serial communication program (e.g., minicom).

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