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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
[8269.582] [disk_initialize] error while checking for SD Card (status 0) [8269.582] [disk_read] error while reading sector 0 [8269.582] [FILE] Failed to open root directory - error status: 1 [8269.582] [sDCARD_ERROR:-2] DFS_GetPtnStart failed to find partition [8269.582] ERROR: SD Card Error -2 (FatFs: D 0) [8270.596] SD Card disconnected Can someone please give me a description of this error or where to find one.