Ancestors

Written by Manawyrm | Sarah -> FOSDEM on 2025-01-06 at 12:36

A very strong talk recommendation from #38c3:

https://media.ccc.de/v/38c3-beyond-ble-cracking-open-the-black-box-of-rf-microcontrollers

Despite the very unassuming name talking about "BLE", this talk is about something much more interesting:

Reverse engineering the Cortex-M0 RF coprocessor and engines in the TI CC13xx radio chipsets!

Those chips are basically little I/Q SDRs with a bunch of hardware offloading. TI keeps all of this hidden away very nicely -- but now they've built tooling to work with that CPU core & RF offloading directly.

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Written by Lukas on 2025-01-06 at 23:10

@manawyrm Ah yes, modern silicon: If they don't tell you about any CPU, chances are that there's a 8051 or a Cortex M0 hiding somewhere.

If they sell you a CPU, you'll probably get one or two more for free that they don't want to you know you about.

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Written by Manawyrm | Sarah -> FOSDEM on 2025-01-06 at 23:44

@karotte You get several Arm cores free with your purchase of any modern AMD x86 as well 😹🤭

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Toot

Written by 8051 enthusiast on 2025-01-07 at 00:22

@manawyrm @karotte and an 8051 for the usb functionality in the cipset as well (at least for the b650)

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Descendants