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--- interfaces:sdcard [2023/06/25 14:48] – darron
+++ interfaces:sdcard [2023/09/18 16:57] (current) – darron
@@ Line 2: / Line 2: @@
 <wrap right>
-{{:interfaces:sdcardif1.jpg?200}} {{:interfaces:sdcardif2.jpg?200}}
+{{:interfaces:sdcardif1.jpg?100}}
 \\ \\
-{{:interfaces:sdcardif3.jpg?200}} {{:interfaces:sdcardif4.jpg?200}}
+{{:interfaces:sdcardif2.jpg?100}}
 \\ \\
-{{:interfaces:sdcardif5.jpg?300}}
+{{:interfaces:sdcardif3.jpg?100}}
+\\ \\
+{{:interfaces:sdcardif4.jpg?100}}
+\\ \\
+{{:interfaces:sdcardif5.jpg?100}}
 </wrap>
+This is a cheap interface found on eBay and elsewhere from China
+to connect an SDCARD. Apparently the pull-ups are too low in value
+and out of spec.
+{{:interfaces:sdcard.pdf|Schematic}}
 ===Resources===
-[[https://www.ti.com/lit/ds/symlink/lm1117.pdf|LM1117 LDO]]
+[[https://www.ti.com/lit/ds/symlink/lm1117.pdf|LM1117 LDO datasheet]]
+[[http://elm-chan.org/docs/mmc/mmc_e.html|MMC/SDC howto]]
+[[https://www.sdcard.org/downloads/pls/|SDCARD spec]]