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I recently completed a SEQ 4LMKii. I am getting power to the cs and I have tested for bridged joints and can not find any shorts with the meter. It is dead on my stm32f4 core and my LPC core. I have the SRIO v4l hardware file in the root folder the SD card and it is showing as valid. Sequencer seems to run properly from the console on either core. It says MBSEQ_C.v4 and MBSEQ_BM.V4 are missing but they are in the sessions folder for both STM and lpc. .J15 is set to 5v. [39012.596] sdcard [39012.568] SD Card Informations [39012.568] ==================== [39012.568] -------------------- [39012.568] CID: [39012.568] - ManufacturerID: [39012.568] - OEM AppliID: [39012.568] - ProdName: SL08G [39012.568] - ProdRev: 128 [39012.568] - ProdSN: 0xe8631ddd [39012.568] - Reserved1: 241 [39012.568] - ManufactDate: 266 [39012.568] - msd_CRC: 0x19 [39012.568] - Reserved2: 1 [39012.569] -------------------- [39012.569] -------------------- [39012.569] - CSDStruct: 1 [39012.569] - SysSpecVersion: 0 [39012.569] - Reserved1: 0 [39012.569] - TAAC: 14 [39012.569] - NSAC: 0 [39012.569] - MaxBusClkFrec: 50 [39012.569] - CardComdClasses: 1461 [39012.570] - RdBlockLen: 9 [39012.570] - PartBlockRead: 0 [39012.570] - WrBlockMisalign: 0 [39012.570] - RdBlockMisalign: 0 [39012.570] - DSRImpl: 0 [39012.570] - Reserved2: 0 [39012.570] - DeviceSize: 15159 [39012.570] - MaxRdCurrentVDDMin: 0 [39012.570] - MaxRdCurrentVDDMax: 0 [39012.570] - MaxWrCurrentVDDMin: 0 [39012.571] - MaxWrCurrentVDDMax: 0 [39012.571] - DeviceSizeMul: 240 [39012.571] - EraseGrSize: 31 [39012.571] - EraseGrMul: 28 [39012.571] - WrProtectGrSize: 0 [39012.571] - WrProtectGrEnable: 0 [39012.571] - ManDeflECC: 0 [39012.571] - WrSpeedFact: 2 [39012.571] - MaxWrBlockLen: 9 [39012.571] - WriteBlockPaPartial: 0 [39012.571] - Reserved3: 0 [39012.571] - ContentProtectAppli: 0 [39012.572] - FileFormatGrouop: 0 [39012.572] - CopyFlag: 1 [39012.572] - PermWrProtect: 0 [39012.572] - TempWrProtect: 0 [39012.572] - FileFormat: 0 [39012.572] - ECC: 0 [39012.572] - msd_CRC: 0x57 [39012.572] - Reserved4: 1 [39012.572] -------------------- [39012.572] [39012.573] Reading Root Directory [39012.573] ====================== [39012.573] Retrieving SD Card informations - please wait! [39012.573] SD Card: '': 3382 of 3384 MB free [39012.574] [......a] 00/00/-20 00:00:00 AM 22702 MBSEQ_HW.V4 [39012.574] [.....d.] 00/00/-20 00:00:00 AM <DIR> 0 SESSIONS [39012.574] [......a] 00/00/-20 00:00:00 AM 10293 MBSEQ_HW.V4L [39012.574] [39012.574] Checking SD Card at application layer [39012.574] ===================================== [39012.574] Current session: /SESSIONS/DEF_V4L [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_B1.V4: valid (64 patterns) [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_B2.V4: valid (64 patterns) [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_B3.V4: valid (64 patterns) [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_B4.V4: valid (64 patterns) [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_M.V4: valid (128 mixer maps) [39012.575] File /SESSIONS/DEF_V4L/MBSEQ_S.V4: valid (64 songs) [39012.576] File /SESSIONS/DEF_V4L/MBSEQ_G.V4: valid [39012.576] File /SESSIONS/DEF_V4L/MBSEQ_BM.V4: valid [39012.576] File /SESSIONS/DEF_V4L/MBSEQ_C.V4: valid [39012.576] File /MBSEQ_C.V4: doesn't exist [39012.576] File /MBSEQ_BM.V4: doesn't exist [39012.576] File /MBSEQ_HW.V4L: valid [39012.576] done. I get some additional errors on a reset from terminal on the LPC board: [38687.653] reset [38689.799] Init DHCP [38689.899] [network_device_init] PHY initialized [38692.821] Loading session DEF_V4L [38692.846] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'COLUMNS_SR_L'! [38692.847] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'COLUMNS_SR_R'! [38692.847] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'ROWS_SR_GREEN_L'! [38692.849] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'ROWS_SR_GREEN_R'! [38692.849] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'ROWS_SR_RED_L'! [38692.850] [SEQ_FILE_HW] ERROR: unknown STEP_TPM_* name 'ROWS_SR_RED_R'! This is with the version 086 firmware for the LPC board. I am running version 088 on the stm32F4 board and it does not reset without hanging so I loose what ever the boot messages would be. This seems to be a stm thing as it behaves the same with the regular seq firmware or the NG firmware. Might be windows related. restarting MIOS brings tings back up but you miss any boot messages.