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The STM32F0 usart can be operated much like the STM32L usart, but the
registers are all moved around.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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This can't work without a lot more effort.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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This replaces having the single output switch based on a pin value and
allows us to box the device and still fetch raw data.
For now, this will use a special libusb2 program, ao-chaosread, to
pull bits as I haven't figure out how to make linux provide two
/dev entries for one USB device.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Allow USB suspend to suspend USB, GPIOs and master clock.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This adds a way to allocate private USB buffers for sending data
without needing to copy it again. It requires ensuring that all
accesses are 16 bits aligned to 16 bit boundaries.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Also moves the usual address for applications out of the way of the
flash loader.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Basic clock configuration, OS support, LED and USB drivers.
Signed-off-by: Keith Packard <keithp@keithp.com>
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