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librecube

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open source space exploration: https://librecube.org/30 Servers

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5 May 2024
@cajt:matrix.orgcajt * Are there open-source compatible ways to deal with reliability requirements and/or standards?07:58:03
6 May 2024
@vramanrs:matrix.orgvramanrs joined the room.05:24:46
@artur.librecube:matrix.orgArtur Scholz cajt: With "ways" to do you mean "tools"? If so, whenever I look for an open source tool, I hit this site, enter a common industrial software package, and filter for open source alternatives. For example, alternatives to IBM DOORS: https://alternativeto.net/software/ibm-rational-doors/?license=opensource 11:59:33
@artur.librecube:matrix.orgArtur ScholzIs it really just now that I realize that beagleboard is a better alternative to Raspi, as it is completely open source!?! ... ordering one right now...12:10:43
@redsharpbyte:matrix.orgRedhaha it is never too late 😄12:22:17
@cajt:matrix.orgcajtWell wel, if it should be open why not risc-v on a fpga with an open toolchain?15:52:43
@artur.librecube:matrix.orgArtur Scholz
In reply to @cajt:matrix.org
Well wel, if it should be open why not risc-v on a fpga with an open toolchain?
you mean, like this one: https://www.beagleboard.org/boards/beaglev-fire ? 😃
15:57:36
@cajt:matrix.orgcajtUhhhh15:58:14
@cajt:matrix.orgcajtOhh, that is moderately cheap and available 15:58:56
@cajt:matrix.orgcajtWas thinking more along the lines of Lattice SOI FPGA, some RAM and some SoC from the migen/liteX domain16:01:51
@cajt:matrix.orgcajt Artur Scholz: is that the one you ordered? 16:24:31
@cajt:matrix.orgcajtBut no built-in JTAG adapter, well maybe it's not needed 17:48:24
@cajt:matrix.orgcajtand the schematics and PCB design files are some propretairy CAD17:54:02
7 May 2024
@cajt:matrix.orgcajtOne might redesign it in a libre CAD, and smash two into that pseudo PC104 format. Add some voting for primitive IOs and message level network access, would be a nice product. Could be uncritical cheap one of two, or a two of two configuration for a bit more reliability. B5F could remain the development plattform. 10:45:37
@cajt:matrix.orgcajtNot completely sure about the LPDDR4 routing, but I wouldn't be too surprised if someone pulls off a 6-layer PCB despite its presence. 10:47:23
9 May 2024
@artur.librecube:matrix.orgArtur Scholz@room Anyone interested in getting hands dirty with PCB design (using KiCAD)? Here is the task: Add support for dual CAN bus to the raspi proto board. Find more details here: https://66222-44717.pph-server.de/projects/developments/work_packages/103/activity19:58:44
@cajt:matrix.orgcajtthat is adding two mcp2515 or mcp2518, and connect it to the rpi?20:28:55
@artur.librecube:matrix.orgArtur ScholzYes, the mcp2518. Like here: https://files.seeedstudio.com/wiki/CAN-BUS-FD/CAN-BUS(FD)-HAT-for-Raspberry-Pi_MCP2518FD_SCH.pdf 20:35:30
@artur.librecube:matrix.orgArtur ScholzRemember, this started out from here (https://fosstodon.org/@librecube/110504810282379569) where we wanted to mount a pyboard on a LibreCube template board for easy prototyping. Now we have such board for Raspi (dual CAN to be added), and yet another project is to create one for beaglebone: https://66222-44717.pph-server.de/projects/developments/work_packages/104/activity20:45:23
@cajt:matrix.orgcajtohh, an old BBB? that is rather slow by todays standards of popular embedded linux boards20:47:14
@artur.librecube:matrix.orgArtur ScholzGood enough for our purposes.20:52:55
@cajt:matrix.orgcajtno debian, git client and test frame work on-board?20:54:13
@cajt:matrix.orgcajt * no debian, git client and test framework on-board?20:54:25
@cajt:matrix.orgcajttheoretically it can build stuff, but most likely its a target for corss-compilation now20:57:20
@cajt:matrix.orgcajtBut its a vanila kernel iirc, so its not a terrible place to be. just cross-development with some linux 21:05:52
@artur.librecube:matrix.orgArtur ScholzI just bought one, still need to try it out. But when you say no git, maybe you refer to an old version? Have a look here: https://docs.beagleboard.org/latest/books/beaglebone-cookbook/01basics/basics.html21:12:37
@cajt:matrix.orgcajtyou can run a small debian on it, but building something big will be slow, you can do GIT on it, but it will be tiresome. Very likely the memory or filesystem throughput or capacity will become a problem. 21:15:04
@cajt:matrix.orgcajtIt is different from what many are used to from using RPIs21:16:37
@cajt:matrix.orgcajtIs that PCB two layers for a firm reason?22:54:53
10 May 2024
@sahave:matrix.orgSahave changed their display name from Stephan Havermans to Sahave.10:35:45

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