Novena DVT Issue Log
Hardware Bringup Notes
- The DDR3 timing has shifted with the new PCB vendor. The hard-coded timings for Micron memories probably needs to be recalibrated.
- R20S/C16S needs tuning, for sure. The default values break Gbit ethernet. Simply removing R20S does restore bandwidth, but the matter warrants further investigation.
- The heartbeat LED D14D is installed 90 degrees rotated. It still lights, it just fires downwards instead of to the side.
- Y10U/Y11U are missing per factory notes. They must be hand-installed for USB to work.
- C11M, C30M, C18M, C52C C45M capacitor is 1210 instead of 1206. Factory has been notified of the mis-ordering of the part.
- R57B 100 ohm -> move to DNP because there is on-chip termination for the FPGA
Quick Tests
- Memory tester: http://memtester.sourcearchive.com/downloads/4.2.2-1/memtester_4.2.2.orig.tar.gz
- wget large file from bunniefoo on all active interfaces: curl -o /dev/null http://bunniefoo.com/bunnie/test.bin
- mass storage on both USB ports
Helpful: stty rows 72 columns 132
Distribution Log
SN001: bunnie
- first time pass
SN002: xobs
- first time pass
SN003: bn.d
- ASIX chip has bad solder joints; now fixed, runs at 8428kiB
- Gbit: 3685kiB
- 2GB single-rank Crucial SO-DIMM
- USB ok
SN004: ra.e
- Gbit: 8600kiB (limited by hub)
- ASIX: 8400kiB
- 4GB dual-rank Crucial SO-DIMM
- USB ok
SN005: te.r
- 4GB dual-rank PNY SO-DIMM
- Gbit: 3700kiB
- ASIX: 8319kiB
- USB ok
