QEMU CPU name in blinky-arm tutorial

[solomonyeUOA]

I follow up https://eclipse-embed-cdt.github.io/tutorials/blinky-arm/ I have chosen device STM32F407VG for the project. When I create debug configuration, I need fill in QEMU machine name and QEMU CPU name, which is different from the tutorial. I have tried to put virt-7.2 in machine name. But each time when I click debug, there is below error. qemu-system-arm.exe: unable to find CPU model 'STM32F407VG' How could I run this tutorial? What is the CPU model I should I fill in? which version of Eclipse I should use? I have changed the device to STM32F407VGTx, it does not work. Should I should earlier version of CMSIS packs for STM32F4XX_DFP? Currently I install 2.17.1 version. Thanks for help

[TommyMurphyTM1234]

You don't seem to be using the xPack QEMU which is named qemu-system-gnuarmeclipse according to this:

• https://xpack.github.io/dev-tools/qemu-arm/

According to the release notes it supports STM32F407VG.

• https://xpack.github.io/dev-tools/qemu-arm/releases/

[solomonyeUOA]

Dear Tommy, thanks for your reply above. I try xpm install @xpack-dev-tools/qemu-arm@latest --verbose. But it is said Processing @xpack-dev-tools/qemu-arm@7.2.5-1.1...warning: package @xpack-dev-tools/qemu-arm@7.2.5-1.1 already installed; use --force to overwrite. So it is already installed. I have found STM32F407VG and assign it to the blinky project as device. But what should I put in QEMU CPU name and QEMU machine name? The tutorial does not have these 2 items. When debug, qemu-system-arm.exe: unable to find CPU model 'STM32F407VG'. Please help.

[TommyMurphyTM1234]

Sorry - I don't know. Maybe @ilg-ul can comment?

[solomonyeUOA]

In the tutorial, which version of eclipse and other software are working? Then I can download those version to try? Maybe I use the latest Eclipse version, for example, Eclipse IDE for Embedded C/C++ Developers (includes Incubating components) Version: 2023-09 (4.29.0) and it does not work? The tutorial version does not have QEMU CPU and machine name to fill in, for example. Thanks

[ilg-ul]

How about reading the existing documentation?

• https://xpack.github.io/blog/2023/09/03/qemu-arm-v7-2-5-1-released/

[solomonyeUOA]

Thanks for @ilg-ul @TommyMurphyTM1234 With both of your help and hint, it works now. I have changed the exe to qemu-system-gnuarmeclipse.exe instead of qemu-system-arm.exe. CPU name is cortex-m4 and machine name is STM32F4-Discovery. It works with simulation board. It is fantastic and both of you are amazing. Could I simulate DE2-115 board here as well? Both of them use Eclipse. Or anywhere could help me to solve the simulation of DE2-115 board?

[TommyMurphyTM1234]

I have changed the exe to qemu-system-gnuarmeclipse.exe instead of qemu-system-arm.exe.

That is what I suggested originally:

• QEMU CPU name in blinky-arm tutorial #594 (comment)

Could I simulate DE2-115 board here as well? Both of them use Eclipse.

I don't know what you mean by "both of them use Eclipse"? Both of what? The DE2-115 is an FPGA board and not a specific Arm MCU board so I'm not really sure what you would want QEMU to emulate? Unless you mean a specific FPGA design implementing a CPU/MCU based SoC? That might need customisation of the QEMU configuration or even extension of the QEMU implementation. That's way outside the scope of this forum.

[ilg-ul]

For the list of QEMU supported machines, see the previous link. Adding a new machine/board is not a trivial task.

[solomonyeUOA]

Great thanks for the help above. We do not need to worry DE2-115 board here since it is not on the machine list. Really appreciate both of your help. I first try the forum or discussion and it really helps.