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A comment on Raspberry Pi Bare Metal Programming with Rust. Parent comment

Re:Raspberry Pi Bare Metal Programming with Rust by fpgaminer on Sunday January 17, 2016 @02:11AM (#10918654)
On the other hand, the BBB has two dedicated on-chip MCU's for driving the GPIO's.
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Re:Raspberry Pi Bare Metal Programming with Rust by bsder on Sunday January 17, 2016 @02:34AM (#10918702)
True, but those are really annoying to program and are mostly meant for hard real-time rather than maximum speed.

The speed on the BBB for GPIO's is okay (I can get to about 12.5MHz with some care). It's more annoying that you actually have to be in supervisor mode to change the I/O direction of a GPIO pin.

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