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On Ubuntu Linux, use these commands:
$ sudo apt-get install libpixman-1-dev libfdt-dev zlib1g-dev libglib2.0-dev libsdl-dev
$ git clone https://github.com/sergev/qemu.git
$ cd qemu
$ ./configure --prefix=/usr/local/qemu-mips --target-list=mipsel-softmmu
$ make
$ make install
It will build QEMU for MIPS (little endian) and install the binaries to /usr/local/qemu/mips directory. You can choose whatever destination you want.
| Machine selector | Microcontroller and board |
|---|---|
| pic32mx7-explorer16 | PIC32MX7 on Microchip Explorer-16 board |
| pic32mx7-max32 | PIC32MX7 on chipKIT Max32 board |
| pic32mx7-maximite | PIC32MX7 on Geoff's Maximite board |
| pic32mz-explorer16 | PIC32MZ on Microchip Explorer-16 board |
| pic32mz-meb2 | PIC32MZ on Microchip MEB-II board |
| pic32mz-wifire | PIC32MZ on chipKIT WiFire board |
To select the processor and board, use "-machine" option. Different boards use different assignments for console UART port, and SPI port for SD card.
You can get the binary files, mentioned below, using these links:
- boot-max32.hex - bootloader image for chipKIT Max32 board
- hello-max32.hex - simple application example for Max32 board (sources)
- unix.hex - kernel of RetroBSD operating system for Max32 board
- retrobsd.img - filesystem image for RetroBSD (download and unzip)
- boot-wifire.hex - bootloader image for chipKIT WiFire board
- vmunix.hex - kernel of LiteBSD operating system for WiFire board
- litebsd.img - filesystem image for LiteBSD (download and unzip)
To enable instruction tracing, add options "-d instr -D output.trace".
Run 'Hello World' application on Max32 board:
/usr/local/qemu-mips/bin/qemu-system-mipsel -machine pic32mx7-max32 \
-nographic \
-monitor none \
-serial stdio \
-bios boot-max32.hex \
-kernel hello-max32.hex
See [result here](Max32 Hello World).
[Here](Example of instruction trace) you can find an example of instruction trace file, generated by options "-d instr -D output.trace".
Run RetroBSD on Max32 board:
/usr/local/qemu-mips/bin/qemu-system-mipsel -machine pic32mx7-max32 \
-nographic \
-monitor none \
-serial stdio \
-bios boot-max32.hex \
-kernel unix.hex \
-sd retrobsd.img
See [result here](RetroBSD Example).
Run LiteBSD on WiFire board:
/usr/local/qemu-mips/bin/qemu-system-mipsel -machine pic32mz-wifire \
-nographic \
-monitor none \
-serial vc \
-serial vc \
-serial vc \
-serial stdio \
-bios boot-wifire.hex \
-kernel vmunix.hex \
-sd litebsd.img
See [result here](LiteBSD Example).
Run LiteBSD on MEB-II board with Ethernet enabled:
sudo tunctl -t tap0 -u $USER
sudo ifconfig tap0 20.2.2.2
/usr/local/qemu-mips/bin/qemu-system-mipsel -machine pic32mz-meb2 \
-nographic \
-monitor none \
-serial stdio \
-net nic \
-net tap,ifname=tap0,script=no,downscript=no \
-kernel vmunix.hex \
-sd litebsd.img