zephyr

History

Kumar Gala 9fa8674239 samples: fs: Fix possible integer overflow We are doing math of two 32-bit numbers and assigning into a 64-bit result. Add explicit cast of one of the values being multipled to get explicit promotion. Fixes: #13883 Coverity CID: 190930 Signed-off-by: Kumar Gala <kumar.gala@linaro.org>		2019-03-02 17:38:23 +01:00
..
src	samples: fs: Fix possible integer overflow	2019-03-02 17:38:23 +01:00
CMakeLists.txt	…
README.rst	…
nrf52840_blip.overlay	…
prj.conf	…
sample.yaml	…

README.rst

.. _fat_fs:

FAT Filesystem Sample Application
###################################

Overview
********

This sample app demonstrates use of the filesystem API and uses the FAT file
system driver to mount an SDHC card connected over SPI bus.

Requirements
************

This project requires a SDHC or microSD card formatted with FAT filesystem.
See the :ref:`SDHC_disks` documentation for Zephyr implementation details.

Building and Running
********************

This sample can be built for an ``nrf52840_blip`` board. It requires
both the ``nrf52840_blip.overlay`` and the ``dts_fixup.h`` for nrf52840_blip
to work:

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/fs
   :board: nrf52840_blip
   :goals: build
   :compact:

To run this sample, a FAT formatted microSD card should be present in the
microSD slot of ``nrf52840_blip`` board. If there are any files or directories
present in the card, the sample lists them out on the debug serial output.