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    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YDB6WIFDXNJTUHFSU4OVONEXGSFVVWUA/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "CAEKn9qZKuKiC9syf-UJ8U3omYRczz+sGMSD13odCB3pxv7p2jA@mail.gmail.com",
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    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/YDB6WIFDXNJTUHFSU4OVONEXGSFVVWUA/",
    "sender": {
        "address": "davids (a) mediamachine.com",
        "mailman_id": "11b702aa77c64867a61ecd84f22b23de",
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    },
    "sender_name": "David Spoelstra",
    "subject": "[AMSAT-BB] Re: BeliefSat-0 orbital data restored, reception reports requested",
    "date": "2024-02-03T01:49:29Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
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    "content": "Zach N0ZGO -\n\nI am fascinated by your comment about the processor \"has features which\nmake it more robust\". Can you elaborate please?\n\nAnd to everyone else that posted about the different processors used,\nthanks! I was a HW/SW engineer for years and developed several in-circuit\nemulators for Tektronix. Later in my career I taught microcontroller\nprogramming at college. I passed some of your info to the current professor\nthere to inspire the students.\n\n-David, N9KT\n\n\nOn Thu, Feb 1, 2024 at 11:27 AM Zach Metzinger via AMSAT-BB <\[email protected]> wrote:\n\n> On 2/1/24 10:07, Paul Stoetzer via AMSAT-BB wrote:\n> > AMSAT's PACSAT board - a modern version of the microsats - uses a\n> > TMS-570, which is an ARM Cortex-R, running at up to 160 MHz with 1280K\n> > of flash storage and 192K of RAM. MRAM will be used for BBS storage.\n>\n> The TI TMS570 \"Hercules\" processor is also used on the Golf RT-IHU,\n> which will be the successor to the STM32 IHU used on the Fox series.\n>\n> It is important to note that the low-Earth orbit environment is much\n> more forgiving than MEO and HEO. Radiation tolerance is an important\n> factor when choosing hardware for these higher orbits, which drove the\n> selection of this specific COTS (common off-the-shelf) processor. It is\n> not a SOI (silicon on insulator) radiation-hard processor, but has\n> features which make it more robust than, say, your off-the-shelf STM32\n> or ATMega64.\n>\n> 73,\n>\n> --- Zach\n> N0ZGO\n>\n> -----------------------------------------------------------\n>\n> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to amsat-bb-leave(a)amsat.org\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n>\n\n\n",
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