flyweight Posted April 7, 2015 Report Share Posted April 7, 2015 I have a hard time accesing the sd card via MIOS. Does access to the SD card work via MIOS studio when only the coreboard and STM32F4Discovery and SDcard are connected? All pins are connected ok. 9 NC 1 PB2 2 PA7 3 GND 4 VDD 3v 5 PA5 6 GND 7 PA6 8 NC SD cards Shield connected to GND When connected to micro usb LD1 is blinking. When ejecting or inserting the SD card nothing hapens. 3 v is available on pin 4 and 2 data lines The correct IC's in the sockets, the resistor network connect with common pin on 1. After flashing the seq4 app should some jumpers be removed? Quote Link to comment Share on other sites More sharing options...
CJ55 Posted April 7, 2015 Report Share Posted April 7, 2015 Connection looks good, except that pin 9 has also to be connected to GND. No jumpers need to be removed. Quote Link to comment Share on other sites More sharing options...
flyweight Posted April 8, 2015 Author Report Share Posted April 8, 2015 i found out that pin 9 is indeed connected to GND. Still via MIOS studio i am not able to mount the sdcard. My sdcard is 2GB formated with FAT32. Could it be that the card works but only not via MIOS studio? If fully checked the coreboard and there arn't any mistakes to be found. Any how i ordered a new sdcard socket as i thought it might be faulty i removed it, during that i found out it was 100% ok :( If you only have the coreboard and stm32f4 can you access the SDcard via mios studio? Quote Link to comment Share on other sites More sharing options...
TK. Posted April 11, 2015 Report Share Posted April 11, 2015 Hi, you've to upload a firmware which supports SD Card operations, such as MIDIbox SEQ, MIDIBox NG, MIDIO128, ... These firmwares also provide special debug commands (enter "help" in the MIOS terminal), e.g. "sdcard" to get the SD Card status. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
flyweight303 Posted May 1, 2015 Report Share Posted May 1, 2015 Hi Thorsten, Indeed the sdcard command failed, i just soldered another sdcard socket and it works! I am really happy that i didn't braek anything while troubleshooting. Still don't know what was so different with the socket which didn't work, but still really happy that it works now. Thanks all, Best regards, Tim Quote Link to comment Share on other sites More sharing options...
TK. Posted May 2, 2015 Report Share Posted May 2, 2015 Ok :phone: Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.