4adbfa45cc
Add rx-virt target specification document. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Message-Id: <20200308130637.37651-1-ysato@users.sourceforge.jp> [PMD: Cover in MAINTAINERS, rename as gdbsim, use machine argument] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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37 lines
1,001 B
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.. _RX-System-emulator:
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RX System emulator
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--------------------
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Use the executable ``qemu-system-rx`` to simulate RX target (GDB simulator).
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This target emulated following devices.
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- R5F562N8 MCU
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- On-chip memory (ROM 512KB, RAM 96KB)
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- Interrupt Control Unit (ICUa)
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- 8Bit Timer x 1CH (TMR0,1)
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- Compare Match Timer x 2CH (CMT0,1)
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- Serial Communication Interface x 1CH (SCI0)
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- External memory 16MByte
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Example of ``qemu-system-rx`` usage for RX is shown below:
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Download ``<u-boot_image_file>`` from
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https://osdn.net/users/ysato/pf/qemu/dl/u-boot.bin.gz
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Start emulation of rx-virt::
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qemu-system-rx -M gdbsim-r5f562n8 -bios <u-boot_image_file>
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Download ``kernel_image_file`` from
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https://osdn.net/users/ysato/pf/qemu/dl/zImage
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Download ``device_tree_blob`` from
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https://osdn.net/users/ysato/pf/qemu/dl/rx-virt.dtb
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Start emulation of rx-virt::
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qemu-system-rx -M gdbsim-r5f562n8 \
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-kernel <kernel_image_file> -dtb <device_tree_blob> \
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-append "earlycon"
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