Here is a photo of my connections to an SD card, I used a home-made adapter PCB. There is a 10k pull-up on nCS, newer cards don't need pull-ups on the other connections. The image of the PCB shows the connections to the Propeller in more detail. The card is a Kingston 2Gb MicroSD card.
First, remove the cap. For the way you've got it all put together, the cap probably isn't
doing much.
Next, can you get us a clearer picture, preferably one from an angle that lets us see
exactly which female header sockets are used from the demo board, and how the
wires run into your socket?
Can you describe exactly how you've built that adapter from the protoboard to the
microSD adapter?
Just to minimize variance, let's put everything back to pins 0..3 if at all possible.
The fact that mount is working sometimes makes me think that the basic four
pin connections are fine. Which makes me suspect power/ground not being
great, or something like that.
Glad you finally got it! You probably don't need the cap or pull-up resistors if you're just testing things out.
If you were going to manufacture a PCB though, I'd think about it.
BTW: The pin numbering is a bit strange. That's why I drew the numbers on the card and put the photo on my website...
I am new with the Propeller and bought a Propeller Platform USB and have an 8GB card. I ran another SPIN program sucessfully (can't remember the name) but it said on the Serial Terminal that it mounted and asked me to input 2 phrases which it said it wrote to a file on the card. So I know my card is accessible.
Pretty neat programs. All I could see do something was TEST.SPIN and SERIAL_TERMINAL.SPIN. I suppose the rest are supporting files. I'll have to study these.
Comments
It works very well with the fsrw26 software.
doing much.
Next, can you get us a clearer picture, preferably one from an angle that lets us see
exactly which female header sockets are used from the demo board, and how the
wires run into your socket?
Can you describe exactly how you've built that adapter from the protoboard to the
microSD adapter?
Just to minimize variance, let's put everything back to pins 0..3 if at all possible.
The fact that mount is working sometimes makes me think that the basic four
pin connections are fine. Which makes me suspect power/ground not being
great, or something like that.
-tom
i've made a new sd card adapter board
this is the picture my old and new sd card adapter board
i just use DO, DI, CLK, CS and connect it directly to propeller (without pull up resistor and cap between power and ground)
first, i was connecting the adapter bord to propeller like picture below. and the result still error
without any serious porpose, i turned the adapter board and....
yeah success!
i think, i was misunderstanding about the sd card pin number
now, am i still need some pull up resistor and a cap between power and ground?
If you were going to manufacture a PCB though, I'd think about it.
BTW: The pin numbering is a bit strange. That's why I drew the numbers on the card and put the photo on my website...
thank you for not giving up on me
Here is my problem:
http://obex.parallax.com/objects/92/
I downloaded vs 2.6 of this FSRW26 software and I get a windows error message when I hit F10 or F11 within the Propeller Tool 1.3:
Cannot find Object 'SYSDEP.SPIN' ...
I doubt I'm the first that has reported on this. What is this SYSDEP.SPIN and where can I find it?
There seems to be nothing on the Internet when I do a Google search on SYSDEP.SPIN.
Pretty neat programs. All I could see do something was TEST.SPIN and SERIAL_TERMINAL.SPIN. I suppose the rest are supporting files. I'll have to study these.
Thanks again.
Tim