Files
OpenCellular/include
Shawn Nematbakhsh 8038e5f146 stm32: adc: Add support for DMA continuous mode
Add support for continuously writing ADC samples to a circular buffer.
CONFIG_ADC_PROFILE_FAST_CONTINUOUS should be defined and an
appropriate sized buffer must be passed to adc_read_all_channels().

BUG=chromium:569994
TEST=Manual on snoball. Verify 'adc' continues to function (single
mode). With pending commit, verify that continuous conversion interrupt
is called at appropriate frequency and values look consistent.
BRANCH=None

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I025825d72a698f8f1f4f95a89477df791bd5e67e
Reviewed-on: https://chromium-review.googlesource.com/318505
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2015-12-21 14:58:56 -08:00
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