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There's something screwy going on, sticking garbage in the input
buffer at boot time
Signed-off-by: Keith Packard <keithp@keithp.com>
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This improves performance for SPI transfers, while allowing other
tasks to get work done during longer SPI transfers.
Signed-off-by: Keith Packard <keithp@keithp.com>
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If we ever use something smaller than this, we'll need to figure out
how to tell how much memory the device has.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This works on everything with a beeper except TeleMetrum v1.0 which
just doesn't have enough flash space for the code.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Was using wrong types
Signed-off-by: Keith Packard <keithp@keithp.com>
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The default for lpc has been raised to 512 bytes, but Em doesn't have
enough RAM for that.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Support the USB boot loader, add USB pull-up support.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Update SPI speed definitions to match
Signed-off-by: Keith Packard <keithp@keithp.com>
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No reason to have that in regular ram, and it means we've got space
for large enough stacks now
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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The lpc demo now has a USB command line.
Also allocates system stack so we know when ram is tight at build time
Signed-off-by: Keith Packard <keithp@keithp.com>
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This gets the LPC11U14 clock set to the PLL and blinks the LED.
Signed-off-by: Keith Packard <keithp@keithp.com>
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