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This driver uses the generic GPIO functions and allows per-LED port
and pin configuration. It supports up to 32 LEDs.
Rename SoC-specific LED drivers.
Remove enabled parameter to ao_led_init
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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Signed-off-by: Keith Packard <keithp@keithp.com>
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This creates a ring buffer for ADC data so that ADC fetching can run
in parallel with other activities.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Switch from software to hardware for CRC computation. I think this
must be faster, right?
Signed-off-by: Keith Packard <keithp@keithp.com>
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Read chunks of random ADC data, do some CRC16 computations to de-bias
and merge 4 bytes of input data into 2 bytes of output data, then dump
that out over USB.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Uses the new STM32F042 flash loading bits.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Gets the USB connection running and blinks the LEDs.
Signed-off-by: Keith Packard <keithp@keithp.com>
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