Hi all. Me and my daughter are assembling a Jetbot, based on the B01 developer board. While trying to initialize the board we’ve run in to a problem getting it to boot.
System is currently powered by a MW powersupply, rated 5V at 4A.
Have tried to jumper pins 9 and 10 on J50, to no avail.
I’ve tried multiple sd-cards and multiple images (jetbot images ranging from 4.4.1 to 4.5) and also vanilla jetpack 4.5 and 4.6. All give similar results :
- Nano is undetectable on USB (both Win10 and Ubuntu 18.04 bare metal installation).
- Serial USB output shows boot failure
- No output on HDMI (tried multiple screens and cables)
[0000.163] [L4T TegraBoot] (version 00.00.2018.01-l4t-e82258de) [0000.168] Processing in cold boot mode Bootloader 2 [0000.173] A02 Bootrom Patch rev = 1023 [0000.177] Power-up reason: pmc por [0000.180] No Battery Present [0000.182] pmic max77620 reset reason [0000.186] pmic max77620 NVERC : 0x6f [0000.189] RamCode = 0 [0000.191] Platform has DDR4 type RAM [0000.195] max77620 disabling SD1 Remote Sense [0000.199] Setting DDR voltage to 1125mv [0000.203] Serial Number of Pmic Max77663: 0xd10ac [0000.210] Entering ramdump check [0000.213] Get RamDumpCarveOut = 0x0 [0000.217] RamDumpCarveOut=0x0, RamDumperFlag=0xe59ff3f8 [0000.222] Last reboot was clean, booting normally! [0000.226] Sdram initialization is successful [0000.231] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000 [0000.237] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000 [0000.242] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000 [0000.248] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000 [0000.254] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000 [0000.260] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000 [0000.266] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000 [0000.272] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000 [0000.288] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000 [0000.294] Platform-DebugCarveout: 0 [0000.297] Nck Carveout Base=0x00000000ff080000 Size=0x00200000 [0000.303] Non secure mode, and RB not enabled. [0000.307] BoardID = 3448, SKU = 0x0 [0000.311] QSPI-ONLY: SkipQspiOnlyFlag = 0 [0000.314] Nano-SD: checking PT table on QSPI ... [0000.319] Read PT from (2:0) [0000.334] Using BFS PT to query partitions [0000.338] PT: Partition TBC NOT found ! [0000.342] Warning: Find Partition via PT Failed [0000.346] BoardID = 3448, SKU = 0x0 [0000.349] QSPI-ONLY: SkipQspiOnlyFlag = 0 [0000.353] Nano-SD: checking PT table on QSPI ... [0000.358] PT: Partition TBC NOT found ! [0000.361] Warning: Find Partition via PT Failed [0000.366] Error is 1
Any ideas on how to fix this without being able to get the USB connection up and running?