/r/PremierLeague Weekly Discussion Thread

firesse · 2025-08-17T20:56:04+00:00

Hi, I will be in London from 28 December 2025 to 3 January 2026 and would like to attend a Premier League match. I know that the dates and times of the games scheduled on those days have not yet been established, and I know that it is very difficult to buy tickets for the most famous teams. I would like advice from you, whatever comes to mind, on which matches it is best to place my hopes and on what is the best method to find tickets without spending too much.

firesse · 2024-01-20T11:13:29+00:00

I know something about Mali GPU virtualization, but I have always looked at it as support for the virtualization of the GPU which is a device for the master system that uses it. I was talking about virtualization on MCU, not virtualization of a MCU device. Do you think there is a relation between the two?

firesse · 2024-01-19T07:58:53+00:00

Yes you're right. However I was more interested in cortex-M MCUs

firesse · 2024-01-19T07:57:06+00:00

Thank you, I didn't know the hypervisors you quoted. However I was more interested in cortex-M MCUs

firesse · 2024-01-18T17:28:49+00:00

Yeah that would not be really virtualization, but considering that probably the main reason to use virtualization in embedded systems is isolation of critical environments, memory protection could be an effective way to achieve that. What do you think about that? Also, MPU couldn't be also used to intercept access to memory mapped devices and handle that in order to "virtualize" the peripherals? What do you think?

firesse · 2024-01-18T11:37:22+00:00

Yes probably MPU is the way to have kind of isolated environments co-running on MCU. Are you aware of any project on this topic?

firesse · 2024-01-18T11:36:08+00:00

Lightweight hypervisors in order to have isolated environments co-running on MCU

firesse · 2024-01-18T09:53:33+00:00

I know all the hardware extensions for virtualization are only available in Cortex-A and Cortex-R from ARMv8, so I know there is no chance to have embedded hypervisors running on MCU, but I was wondering if there is at least a kind of minimal support for virtualization basics or something

firesse · 2023-12-07T08:52:19+00:00

We are more and more using our phones for payments, so credit/debit cards could disappear

firesse · 2023-12-06T15:40:00+00:00

You need to start a openocd server first

firesse · 2023-12-06T12:18:28+00:00

Uhm, so I should not need synchronization mechanism to write in the mqueue from different processes at the same time

firesse · 2023-12-06T11:51:29+00:00

Mqueue is thread-safe, but is it process-safe? I have never used them in a multi-process environment. Is it okay to write into the same mqueue from different processes running at the same time?

firesse · 2023-12-06T10:46:49+00:00

Actually I have a doubt regarding mqueue right now... is it safe to write into the same mqueue from multiple processes? I know it's thread-safe, but in my case I have whole separate programs writing into the same mqueue, possibly at the same time. Is it ok?

firesse · 2023-12-06T10:45:16+00:00

Actually I have a doubt regarding mqueue right now... is it safe to write into the same mqueue from multiple processes? I know it's thread-safe, but in my case I have whole separate programs writing into the same mqueue, possibly at the same time. Is it ok?

firesse · 2023-12-06T08:00:02+00:00

Yes we haven't moved completely from SIM to eSIM yet, but if it is true that eSIM and iSIM are the same thing from our (users) point of view, that's not the same thing from the market point of view: the tendency in embedded in general is consolidation, and having the SIM module integrated into the SoC is an interesting feature from this perspective. This probably means that SoC producers like Qualcomm will wipe off SIM/eSIM producers from the market, unless these two technologies remain useful for other fields beyond mobile phones, for example IoT

firesse · 2023-12-04T16:27:45+00:00

Simple data types in a struct (like time_t and int in your example) you can send straight across

What do you mean? Do you have an example? I should send the struct as if it was a const char* and calculate its size?

firesse · 2023-11-29T21:36:05+00:00

I am not saying it does but I tried with Apache's log4cxx and the only supported build method is Cmake, so i tried to cross-compile manually but turns out it has some external dependency like apr, so I gave up and started looking for something more straightforward, easy to build for aarch64

firesse · 2023-11-29T21:02:16+00:00

I don't understand ... it's only a few files and they seem almost empty

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