SD card
=============

.. contents::
  :local:
  :depth: 2

Add power switch to turn on/off SD card power.

Use VDIO_SD to pull high SD_D0~D3, SD_CMD via 47k ohms 

Use VDIO_SD to pull high SD_CD via 10k ohms 

.. image:: ../_hw_static/07_SD_card/07_SD_card1.png

.. image:: ../_hw_static/07_SD_card/07_SD_card2.png