... | ... | @@ -84,60 +84,11 @@ notes](https://www.ohwr.org/project/wr-switch-hw/wikis/Release-v34) |
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Please check the v3.3 [release
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notes](https://www.ohwr.org/project/wr-switch-hw/wikis/Release-v33)
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*Schematics:***
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Connector\_GTX.SchDoc:
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- P/N of the J1 changed to QTS-048-02-L-LD-DP (8 mm height stack-up)
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- Pin-90 signal connected to FAN\_BOX\_EN
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- Pin-92 signal connected to FAN\_PSU\_EN
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I2C\_Multiplexers.SchDoc:
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- Removed I2C Temperature Sensor TMP100 IC7 for sensing PCB Tª (placed
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close the PSU)
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TEST\_USB.SchDoc:
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- Removed the two 1:2 multiplexer controlled by the FPGA.
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- Used two independent USB CP2101 chips and connectors for ARM and
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FPGA.
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- Resistors for pull-up and pull-down changed from 3K3 to 4K7.
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- Connectors\_GPIOs.SchDoc:
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- Cases of the DB9 and USB connectors tied to chassis.
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- P/N of the J2 changed to QTS-048-02-L-LD-DP (8 mm height stack-up)
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- Removed FAN\_FPGA controller
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- FAN\_BOX\_EN and FAN\_PSU\_EN controlled by the FPGA in order to
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allow easy PWM implementation.
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- Added capacitors for filtering PWM output signals.
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- Removed tachometers fan signals.
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- Added general function push-button.
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- Added PMOS to allow switch on-off the +12V of the fans.
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- Fan's connectors changed by P/N 61900211121of Würth (2 pins THT)
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Main.SchDoc:
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- Removed Chassis connections
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- Added the I2C\_Peripherals sheet:
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- Added I2C GPIO controller
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- Added push-button to select the ARM booting
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- Added a bi-colour red/green led for ARM error communication
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- Added a bi-colour red/green led for PSU OK/error
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- Added 4bit dip-switch to indicate the PCB version
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- Added the TMP100 I2C IC7 Tª sensor removed from I2C\_Multiplexers.
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*PCB:***
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- PCB shape changed
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- RS232 and USB Test connectors moved to the back panel of the switch.
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- SFP cases moved about 2,4mm inside PCB
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- USB connectors moved to the PCB edge
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- Stack-up changed to 6 layers.
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- Gigabit signals moved to internal routing layers to reduce the
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emitted radiations (CE Label test requirement)
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### Changes for v3.2
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Please check the v3.2 [release
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notes](https://www.ohwr.org/project/wr-switch-hw/wikis/Release-v32)
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*Schematics:***
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Connector\_GTX.SchDoc:
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... | ... | @@ -175,6 +126,9 @@ WR\_LINK.SchDoc: |
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### Changes for v3.1
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Please check the v3.1 [release
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notes](https://www.ohwr.org/project/wr-switch-hw/wikis/Release-v31)
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SCB\_PLLs:
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- R61 changed to o.c. The V3 works with 62,5MHz DMTD clock instead of
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