Hello, I'm hoping someone can help me here.
I'm trying to use the SD Card on the ArduinoEthernetShield http://www.arduino.c...oEthernetShield
using the netduino board.
I'm testing using the sample code found at...
http://forums.netdui...ch__1#entry3308
(Sorry not sure how to put the link in correctly)
Netduino Firmware v4.1.1 ALPHA 2 Enhanced SD card support
I'm able to get the directory listing, read file contents but can't write to a file.
I have loaded the NetduinoFirmware_v4.1.1.0_ALPHA_A2 and the SecretLabs.NETMF.IO_ALPHA_A2 which I had to do to even see the SD card in the first place.
Any suggestions on why I can't write would be appreciated.
PS.
I have tried setting the WP (Write Protect) pin, both Hi and low (but I don't think it is used for the micro SD card anyway.)
The card I'm trying to write to is a Kingston 256MB micro SD.
I have also disabled the W5100 on the same board by setting GPIO_PIN_D10 high.
PPS.
Have now tried a Kingston 1GB Micro SD card and it would not work at all. Failed to Mount: System.IO.IOException
Regards
Stephen
SD card write problems
Started by Stephen_P, Nov 02 2010 01:41 PM
2 replies to this topic
#2
Chris Walker
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Posted 02 November 2010 - 06:46 PM
Stephen,
Are you jumping pin D4 to pin D10? This may conflict with the Ethernet chip if you're using the SPI header...
WP is not used on MicroSD cards. What error are you getting when you try to write to the card?
Chris
#3
Stephen_P
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Posted 03 November 2010 - 09:26 AM
Stephen,
Are you jumping pin D4 to pin D10? This may conflict with the Ethernet chip if you're using the SPI header...
WP is not used on MicroSD cards. What error are you getting when you try to write to the card?
Chris
Hello Chris
Just to 'close' this thread. I'm responding in the thread located...
http://forums.netdui..._4435#entry4435
Regards
Stephen
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