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Unused variables, mismatching signed/unsigned and a few other misc
warnings.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This allows each LCD segment to be individually configured as to which
COM and which SEG drives it, permitting maximum flexibility in wiring.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Stop using cli/sei, which are avr-specific
Signed-off-by: Keith Packard <keithp@keithp.com>
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This provides a simple function interface for driving the LCD segments
in the STM chip. It also uses the update complete interrupt to block
LCD users during flush.
Signed-off-by: Keith Packard <keithp@keithp.com>
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These devices require static mode.
Signed-off-by: Keith Packard <keithp@keithp.com>
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It's all very specific to the 14-segment display, so
stick it there.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This enables the 6-digit 14-character display on the STM32L discovery
board and provides an ascii output to it.
Signed-off-by: Keith Packard <keithp@keithp.com>
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