Version 29 (modified by 4 years ago) (diff) | ,
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Service Module Rev A ECOs (main board)
List:
- R94,R95,R96,R92 Remove resistors.
- Add 4.7k resistor between R95 pad bottom to R92 pad upper Example
- R50 should be 10k-ohms for CERN IPMC (SM603)
- R52,R56,R61,R62 should be ~100-ohms (For LEDs so ~10% is fine)
- Samtec headers for FP (J40, J46) are a bit too tall. Suggest sub SAM11085-ND (ESQ-106-23-L-D)
- Remove U11 and U13.
- Replace C2, C14, and C18 with 565-4114-ND
- Install 3 pin 0.1" header for use with jumpers on J45.
- Remove R23 and R28
- install M2.5x8 screw in K1 & K2 (on the back side.)
notes:
- 220uF caps should get smaller (physically, too tall)
- Remember to populate R50 with CERN IPMC value.
- We should add a pull-down to U15 pin 1 for when we have no IPMC (added on board 1)ECO Link
We should add a pull-up to ETH_SW_RESET_N(Has on-board pull-up, so we are OK)- Traces under mounting splice plate holes
- U23 has wrong DigiKey? part number ECO Link
- A pull up/down should be added between U24 pin 4 and U23 pin 7
Front panel board changes for Rev B
- Remove level shifter and wire direct uSD card to connector
- Change FT232RQ to FT232RL (TSSOP package)
- Wire
USB_UART_EN
toFT_3V3
through R2 instead of fromnDTR
- Change header P/N for headers for longer pins
Service Module TODOs for RevB
- Traces under mounting splice plate holes (move to internal layers/ out of the way)
- GPIO header
- Add level shifters between ESM LED/Serial connections to Zynq to allow for ESM to work when Zynq missing/broken.
- Zynq power good signal to IPMC
- Modify BOOTMODE flipflops
- Simple jumper for turning on 12V without an IPMC.
- Consider removing series caps on TTX Tx lines (
CMS_TCDS2_TTS_P/N
); suggestion from Luis @ KIT - Extra IOs between Zynq and IPMC
- Extra IOs for Zynq-
- Extra IOs for IPMC
- Re-arrange high speed links for CMs
- Connect up second ESM second SGMII to ESM eval phy and zynq ethernet port
- Compatible with XU
- adjust hole size under zynq for mounting.
Requests / comments from Cornell
- Make the I2C busses multi-master ZYNQ+IPMC? Maybe not easy/possible but worth considering
- Any changes to the UART links to make things easier / more flexible?
- Possibly alter the SM mechanics so that CM with splice plates can just slide in and out?
- Peter complains that the SD card read/write speed is very slow. Maybe it's operating in some fallback slow mode? Worth investigating.
Rev 2 SoC US+ options
CG-> Dual-Core A53 1.3Ghz, Dual-core R5 533Mhz, 103-600k logic cells EG-> Quad-Core A53 1.5Ghz, Dual-core R5 600Mhz, GPU, 103-1100k logic cells EV-> Quad-Core A53 1.5Ghz, Dual-core R5 600Mhz, GPU, Video, 192-500k logic cells |model| chip| ram|connectors|MGBTs GTH+GTR|price| |XU1 | ZU6EG,ZU15EG | 2-4GB | 3 | 12 + 4 |700 - 2k| |XU5 | ZU2EG,ZU5EV | 2-4GB | 2 | 4 + 4 | | |xu7 | ZU6EG,ZU15EG | 2-4GB | 3 | 16 + 4 |1.2k - 2k| |xu8 | ZU4CG,ZU7EV | 2-4GB | 3 | 16 + 4 | 700-1.6k |xu9 | ZU7EV | 2-4GB | 3 | 16 + 4 | 1.7k |
Attachments (4)
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APOLLO_RevA_ECO_U15.pdf (659.9 KB) - added by 5 years ago.
APOLLO RevA ECO for U15
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APOLLO_RevA_ECO_U23.pdf (746.7 KB) - added by 5 years ago.
APOLLO RevA ECO for U23
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R95-R92_4.7K_example.jpg (295.8 KB) - added by 5 years ago.
Example resistor placement for R95 to R92 4.7Kohm resistor
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APOLLO_ESM_ECO.pdf (809.6 KB) - added by 5 years ago.
APOLLO RevA ECO for ESM