QEMU Emulation for Renesas RX
Overview
This board configuration will use QEMU to emulate the Renesas RXv1 platform.
This configuration provides support for the R5F562N8 MCU and below devices:
On-chip memory (ROM 512KB, RAM 96KB)
Interrupt Control Unit (ICUa)
Compare Match Timer x 2CH (CMT0,1)
Serial Communication Interface x 1CH (SCI0)
Hardware
Supported Features
The following hardware features are supported:
Interface |
Controller |
Driver/Component |
|---|---|---|
ICU |
on-chip |
interrupt controller |
CMT timer |
on-chip |
system clock |
SCI UART |
on-chip |
serial port |
The kernel currently does not support other hardware features on this platform.
Devices
System Clock
This board configuration uses a system clock frequency of 6 MHz generated by the CMT timer.
Serial Port
This board configuration uses a single serial communication channel on the SCI UART channel 0.
Programming and Debugging
The qemu_rx board supports the runners and associated west commands listed below.
| flash | debug |
|---|
Use this configuration to run basic Zephyr applications and kernel tests in the QEMU emulated environment, for example, with the Basic Synchronization sample:
# From the root of the zephyr repository
west build -b qemu_rx samples/synchronization
west build -t run
This will build an image with the synchronization sample app, boot it using QEMU, and display the following console output:
*** Booting Zephyr OS build v4.1.0-3157-gb30f8b6a7327 ***
thread_a: Hello World from cpu 0 on qemu_rx!
thread_b: Hello World from cpu 0 on qemu_rx!
thread_a: Hello World from cpu 0 on qemu_rx!
thread_b: Hello World from cpu 0 on qemu_rx!
thread_a: Hello World from cpu 0 on qemu_rx!
thread_b: Hello World from cpu 0 on qemu_rx!
thread_a: Hello World from cpu 0 on qemu_rx!
thread_b: Hello World from cpu 0 on qemu_rx!
thread_a: Hello World from cpu 0 on qemu_rx!
thread_b: Hello World from cpu 0 on qemu_rx!
Exit QEMU by pressing CTRL+A x.