SPE035 position of SDcsrd socket

B

B4Lamb

Member
Data sheet axe171 refers to note 1.1 that doesn't exist
It is supposed to indicate the exact position of SD card module as it can fit in one of two locations on the pcb.
Which do I choose? The one that matches the photograph ??
 
Hi,

I can't find my AXE171 hardware at the moment, but the photograph looks as if all the "A" and "B" pads are linked across, so it shouldn't matter which rows are used. The spacing of the "B" rows looks slightly larger, so I guess it's best to use whichever rows match the spacing of your DFPlayer Mini module !

Cheers, Alan.
 
No Alan they are not linked across, I buzzed them as that is what I thought. They are the same size through hole. The column of 8 holes nearer the speaker is slightly further away making a slightly wider pitch but the DF player mini fits in both positions.
 
Hi,
Note 1.1 refers to the bottom of page 2 of this doc. Mine was supplied as per the photograph with the DF Player Mini type of module for slot A.
 
Okay thank you. It makes sense.
Now it's soldered on.position A
I downloaded the sample mp3 files from the link provided in the data sheet and put files on a 16GB sd card in a folder calls MP3 as required. These are just female voice files saying "one" "two"......"nine" I then plugged this into the SD slot and powered up via my proven AXE171 with a 14M2 micro running one the sample files given in the datasheet. I get a small chirp at 5V power up then silence. It should cycle through the 9 voice files. None of the 3 play switches on the SPE board do anything either. Any ideas??
 
The issue could how your SD card is formatted. A 16GB card is likely to be formatted exFAT as standard (or NTFS), but the DF Player appears to only support FAT16 and FAT32.
 
Hi Jack, that's a good point but I did get the SD card from a working security camera and because it was full of short video clips it was easier to reformat the card and I reformatted as FAT32 so it should be okay. I tried another SD card and that has not been successful either.
 
Note the folder must be named \MP3 on the card (not \mp3)

There are generally 3 different playback options:

1) Command 03. No folders, filenames named 0001.mp3 to 2999.mp3
$7E, $FF, $06, $03, $00, Filename_H, Filename_L, $EF

2) Command 0F. Folders named 01-99 containing filenames named 001.mp3 to 255.mp3
$7E, $FF, $06, $0F, $00, Folder, Filename, $EF

3) Command 12. Folder named MP3 (upper case) containing filenames named 0001.mp3 to 2999.mp3
$7E, $FF, $06, $12, $00, Filename_H, Filename_L, $EF
 
Okay problem solved.
After trying most of the suggestions I removed the DFPlayer mini from the SPE035 board (not an easy task but okay using my Surface mount hot air gun set at 400⁰C) and replaced with a new one I had bought years ago and then it came to life. So i was supplied a faulty component (no I didn't fry it with over voltage or reverse polarity).
Happy days. Thank all those who gave good suggestions.
 
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