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This cleans up the build process for all architectures, providing a
common place to specify vpath, cflags and build rules for various
common files.
Signed-off-by: Keith Packard <keithp@keithp.com>
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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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The textram section must be aligned to 8 bytes to keep the linker
happy. However, if that section contains no data, the declaration will
set the __data_start__ value to that alignment, but the data section
itself would start on a 4-byte alignment, potentially 4 bytes lower
than the value indicated by __data_start__. This completely scrambles
initialized memory as the startup code will copy the data segment to
__data_start__, 4 bytes off of the actual data segment start.
Fix this by forcing the data segment to also be aligned to 8 bytes.
Signed-off-by: Keith Packard <keithp@keithp.com>
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If you try this after the UART is running, it won't work.
Signed-off-by: Keith Packard <keithp@keithp.com>
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stm32f042 processor replaces the attiny85 and adds USB support along
with more storage.
Signed-off-by: Keith Packard <keithp@keithp.com>
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