SD card STM32f4 error

[GuitarNut67]

I may have messed up my STM32F4 board.  I accidentally plugged the 74HCT541 in backwards while trying to power it up for the first time.  No lights came on.  

I replaced both chips on the  core module and got the boot loader and LCD working.  I installed Midibox NG 1.032 but my SD card fails. :(

 

From MIOS Studio 2.4.6 (here are the details)

[319531.507] sdcard

[319531.499] SD Card Informations

[319531.500] ====================

[319531.500] ERROR: Reading CID failed with status -256!

[319531.500] ERROR: Reading CSD failed with status -256!

[319531.500] 

[319531.500] Reading Root Directory

[319531.500] ======================

[319531.500] SD Card: not connected

[319531.500] Failed to open root directory - error status: 12

[319531.500] done.

 

 

I tried two 8 gig sd cards (one Ultra) format FAT 32.

==========================

 

I checked continuity between the solder pads of the sd card before assembly nothing seemed to be causing a short circuit.

 

Is there a way to trouble shoot SDCard or Connector and the STM32F4 board ?

 

I couldn't locate error status codes while searching the forum.

 

Thanks, 

 

A confused GuitarNut

[TK.]

I've never seen this before!

It seems that communication with the SD Card is working, but it doesn't behave like a common SD Card.

E.g. the CID contains some manufacturer informations, and the CSD some implementation parameters - they can be retrieved.

 

Would it be possible to try out a different SD Card from another manufacturer?

Can also be a very cheap one.

<= 4 GB cards should be preferred, 

 

Best Regards, Thorsten.

[GuitarNut67]

Thank you, for the quick response.

Yes, I will try a 4GB card to see if that makes it happy.

 

I did notice that the same errors occur when there is no SD card in the slot.

 

I removed the STM32F4 board from the socket and made a continuity test for all pins on the SD card and where they arrive at J16.

I notice some crossed lines in my test, I'm including a drawing showing my results.

 

In my continuity test, pin 9 & 6 of the SD card bridge both RC1 & RC2, while pin 3 joins them at RC1 of J16.

Is this a proper connection?

 

Thanks 

[TK.]

Interesting, I didn't know this failure more yet.

 

Yes, if course - the two RC pins should be separated, there shouldn't be a short between the two pins.

 

You can doublecheck this by removing the STM32F4DISCOVERY board.

If there is still a short, check the appr. solder joints

 

Best Regards, Thorsten.

[GuitarNut67]

Ok,  I tried a 2 gig SD card with no improvement. :no:

 

Triple checked the solder connections on the board and SD card socket

these seem fine and, I was incorrect in my earlier post (I confused the orientation of J16

making me think I had a short between RC1 & RC2 it was actually Vs & Vs). 

 

Do you think I may have damaged the STM32F4 board by powering it up with an incorrectly oriented 74HCT541 chip?

 

I'm considering purchasing another STM32F4 for comparison.

 

Thanks 

[GuitarNut67]

Ok, Good news

 

I ordered more STM32F4 boards and they all react the same with my Core breakout board.

I didn't fry the processor board. :)

 

Bad news, Still have a non-functioning SD interface.

 

I guess I need to remove the current SD Connector and start over.

[GuitarNut67]

OK, Finally completed a second Breakout board, this time it worked!  :smile:

 

Must have messed it up while building it. 

 

Please disregard the graphic earlier in the thread.  

I incorrectly labeled the connector.

I wouldn't want to confuse anyone.

 

If TK could delete this thread that would be OK with me.