SD Card Module LC Studio

Mike_GTN

Hi All,

I bought one of the eBay SD Card modules (Datasheet attached)

Propeller Connections --- SD Module Connection

P8 DO MISO
P9 CLK SCK
P10 DI MOSI
P11 CS CS

Using the simplest SD Mounting code possible, fails to detect the memory card.
All connections tested through to propeller Board, and have tested with
both +5v and 3v3

The module has a 10K Resistor pulling up the SCK line and feel tempted to
remove this. Two different SD Cards tried first Sandisk 2GB and Transcend 1GB
both correctly formatted as FAT 16.

Wonder if anyone has got one of the breakout boards to play nicely with a
Propeller?

Would be interested for any ideas.

Thanks.

Mike.

lcsoft SD module.pdf

Mike Green

I would be suspicious of your "simplest SD Mounting code". Occasionally, I've mixed up DO (MISO) and DI (MOSI), but what you've listed is the usual order for these. Don't worry about the 10K resistor on SCK.

I would download "DongleBasic" from the ObEx and try it. It uses a different low level SD card driver than what most people use and, by default, uses the pinout you've listed.

Mike_GTN

Thanks Mike,

My simple SD Code works with my Homemade (Badly attempt) was trying to just smarten up a project. You are totally correct of course. Thanks as well for mentioning your Dongle Basic as was not aware the SD Element was different and would provide a useful testing resource for my situation. Have another useful resource to look at now. I've resorted to using my original board and all
is fine again. I believe the LC Studio one was faulty from the start, just unlucky. Shall purchase some more when I have finished this current project. Very educational for a £1 in cost.

Mike.