History

Review11052011¶

Review material¶

DS18B20Z+ (IC19) footprint fixed.
CP2102 (IC21) footprint fixed.
Resetable fuses removed.
Fuses (the real ones that blows) added on P12V and P3V3_FMC. This implies quite some changes in the 12V routing.
Si570 mounted by default.
Si2315BDS-T1-E3 (T8) replaced by symbol from CERN lib.
Pull-up added on I2C bus for Si570.
FPGA pin P8 connected to VREF_DDR.
Schottky diode added in series with external 12V input, to avoid damage if an external supply is plugged when the board is in a PCIe slot.
Reverse polarity protection diode (D1) replaced by type SS34 (same type as series diode).
Number of resistor types reduced. From 23 types in V1.1 to 10 types in V2. Mostly changed regulators feedback resistors.
Schematics cleaned up.
DS18B20 package changed to uMAX, source:/trunk/circuit_board/EDA-02189-V2-0-Simple_PCIe_FMC_Carrier@45

Fix the page numbering in the schematics.
Add more decoupling capacitors under the FMC connector.
Add text to indicate pin 1 of connectors.
Add all designers names
Fix tipo in comments (FMC connector page).
Connect front panel directly to GND.
Add more details about default boot method.
Verify that there's no plane under x4 PCIe lanes (should be able to cut the PCB to make a x1).
Add dash line to indicate the cutting point.
Make the FMC mounting holes all the same.
Fix the PCIe connector, PRSNT pads should be shorter.
Check VCCINT decoupling under the FPGA.

Consider using a smaller package for the 2.5V reference in new designs (currently SOIC8).