<@U016ULGAUNM> what about a fully integrated RISC-...
# generala
Amro Tork
08/05/2022, 8:48 AM@Tim 'mithro' Ansell what about a fully integrated RISC-V that is linux capable? Would you consider that for the larger chip area?
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Arman Avetisyan
08/05/2022, 9:34 AMddr x8 + some perioherals do not fit in current chip because of IO limit.
As I said 6 months ago. This is huge limiting factor for many big projects
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Amro Tork
08/05/2022, 9:58 AM@Arman Avetisyan I'm talking about a chip with SRAM on chip no DDR. May be DDR would be the next step.
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Arman Avetisyan
08/05/2022, 10:12 AMBooting linux with on chip memory seems impossible and impractical
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Amro Tork
08/05/2022, 10:35 AM@Arman Avetisyan For IOT and embedded Linux, it's practical. And there are many applications of such chips. It enables the entire linux stack without the GUI.
Amro Tork
08/05/2022, 10:35 AM@Arman Avetisyan Look at the Raspberry pi zero for an example that is based on ARM.
Amro Tork
08/05/2022, 10:37 AMTo be honest, if we really aim to have a full Linux capable processors with DDR support, we need to target lower nodes like 45nm and below. If we target 14nm, would be even better.
Amro Tork
08/05/2022, 10:38 AMThe speed limitations on the current process even with larger area will not make this processor fast enough for real applications.
Amro Tork
08/05/2022, 10:39 AMThat's whay I think targeting IOT for such node is more practical and plausible.
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Arman Avetisyan
08/05/2022, 10:58 AM1. Raspberry pi zero does not boot linux
2. IoT applications are reasonable
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Amro Tork
08/05/2022, 11:23 AM@Arman Avetisyan
1. It does: https://www.instructables.com/Install-Raspbian-and-Setup-Wi-Fi-Without-Access-to/
2. Great we are on the same page on that.
Amro Tork
08/05/2022, 11:24 AMAmro Tork
08/05/2022, 11:24 AMAmro Tork
08/05/2022, 11:25 AMI have one here at home that I use as video sharing device connected to my TV. But it's very weak compared to raspberry pi 4
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Arman Avetisyan
08/05/2022, 11:33 AMaplogies I mistaken thought you were referring to raspberry pi pico. Which cant boot linux.
Zero or slower alternative cant be implemented because of IO limitation. There is not enough IO for external memory, which zero has.
Again, the IO is the limiting factor. You cant even boot embedded linux without 2-4MB RAM which cant be implemented on any MPW chip
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Amro Tork
08/05/2022, 11:56 AM@Arman Avetisyan I have to disagree with you on that one as well. If you would like to take that offline, let's do.
Amro Tork
08/05/2022, 1:26 PM@Tim 'mithro' Ansell @mkk and @Tim Edwards I already have something that should technically be linux capable. But I didn't have enough space to hold the memory required on chip to make this work. If we can have a larger chip size there is a possibility to push that forward.