| Commit message (Collapse) | Author | Age |
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Small pin-count versions of the STMF0 can remap PA11/PA12 on the same
pins as PA9/PA10. These are used by USB, so have the USB driver deal
with remapping them.
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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Sets up the stm32f0 CRC hardware, exposing inline functions to access
it. DMA access is possible, but usbtrng can't use that.
Signed-off-by: Keith Packard <keithp@keithp.com>
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These were left over from the stm32f0 initial implementation work; now
it's more useful to list only the bits which are valid.
Signed-off-by: Keith Packard <keithp@keithp.com>
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The ADC api is what USBtrng wants; a way to repeatedly read a single
ADC input as fast as possible.
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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The flash loader ended up assuming ao_boot was at the start of ram,
while the application stuck it after the interrupt table (where it
needs to go).
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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