[lowrisc-dev] GSoC16 : A virtual platform for lowRISC SoC ?

Guillaume Delbergue guillaume.delbergue at gmail.com
Wed Mar 16 22:18:45 GMT 2016

Hi Alex,

Thanks for your answer.
The idea is not to model only the core, but the entire platform, to build a
complete virtual platform of the entire SoC.
I mean the virtual platform will include the core model and the
“peripherals” models like IRQ, Timer, UART, I2C, SPI, …
UART / I2C / SPI IP… should export a TLM interface for their protocol.
Then, these TLM interfaces could be connected to a backend for interaction.
(or potentially connected to real hardware for example)
As you said USB and PCIe could be really interesting and a good challenge.
It can be a part of the plan.


Guillaume Delbergue

2016-03-15 16:35 GMT+01:00 Alex Bradbury <asb at asbradbury.org>:

> On 13 March 2016 at 00:32, Guillaume Delbergue
> <guillaume.delbergue at gmail.com> wrote:
> > Hi,
> >
> > I’m a Ph.D student working on TLM standard and its application to non
> memory mapped interfaces, and mainly about protocols used in SoC. I’m
> interested in building a virtual platform for the lowRISC SoC based on the
> SystemC IEEE standard.
> > More and more project are developed using a top-down approach building
> first TLM LT models, then maybe AT,... until the RTL. Virtual platforms
> enable software developers to build drivers and test their code early using
> a virtual version. They bring software and hardware team to enable early
> software and early validation. As I can see, you’re talking in your "Plans
> for RISC-V in 2016 » presentation about SPI, I2C, I2S, UART IP, I think it
> would be interesting for the community to have a TLM LT level (for example)
> equivalent to ease hardware, driver development and testing.
> >
> > What’s the interest of the community in such a project ? What about
> having an open source virtual platform based on the industry standard (IEEE
> 1666) ?
> >
> > Let me know if you have any questions.
> Hi Guillaume. Thanks for getting in touch. My personal experience with
> SystemC is through our Loki research project where we found a model of
> the complete design to be useful for rapidly iterating on hardware
> designs and to verify against with the RTL implementation that
> followed. I have less experience using models for IP blocks in
> isolation - perhaps you could expand on how you feel a loosely timed
> model of SPI, I2C, ... could be exploited by the community? Although
> much more challenging, I wonder if models for higher speed protocols
> like USB or PCIe might be interesting.
> Best,
> Alex

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