Micro SD Card Issues

[baobrien]

I have tried to add an SD card to my YBox2, but I didn't know where to get a free sample SD card socket, so I tried using a microSD to SD adapter by soldering directly to it. I used information from the propeller cookbook for SD card wiring. I used the FSRW library from the propeller object exchange. After fiddling with the test and sysdep objects to match my configuration, the test failed. Returned error -1, I suspect from microSD SPI compatibility issues or wiring problems. Can someone help?

[baobrien]

Here are the images of my electronics:

[fat16lib]

Micro SD cards are not required to support SPI. All micro SD SanDisk cards that I have tested do support SPI.

Soldering card adapters often fails. Guess they can't take heat. I assume you have no shorts between pins and the correct pins are used. It looks like you have used 1-7 which is correct.

If you had access to a Wave or GPS shield on an Arduino, you could check the micro SD card but if it is a SanDisk it likely supports SPI.

[baobrien]

It's a Samsung brand MicroSD. I'll take a look at the adaptor, but I tried ordering some free sample SD sockets from molex.

[adafruit]

did you check that the pins arent being used by anything already (like the ethernet chip)?

[baobrien]

Their the four directly under eeprom/prop plug access. It didn't look like they were taken, or show it in the schematic.

[adafruit]

might have to contact the library maker..we also suggest the parallax forums, they have one just for propeller, and theres a lot of prop junkies there

[baobrien]

My Molex sample SD sockets came in, and after soldering one in, the SD works great.

[adafruit]

whew! whatcha storin' on them?

[baobrien]

I'm trying to use the libs from FemtoBasic to set up a menu boot loader. It sort of works so far. I've got to be careful to not select non-binary files, the first time that happened, it screwed up the bootloader, but I managed to reflash it before it became a problem.

[brianez21]

Where on the website did you go to request the sample SD card sockets?

[baobrien]

1. Find the socket you want to order
2. Fill out information at http://www.molex.com/molex/smp/amesamplereq?channel=Products&langPref=english
3. They don't seem to check company name