Other Parts Discussed in Thread: CODELOADER
Hi,
We are using 2 nos of LMK03328RHST in our design. We already have the assembled PCB. We are using Code Loader Ver 4.20.2 and trying to get proper register values using the Software tool.It is taking more time to understand each options and get appropriate register values, However the team is stydying it in detail. But for initial testing of FPGA we quickly need to generate Clock and start with the testing in parallel.
Hence we need your support in getting proper register values, so that we will use it in the design and start with Testing. Simultaniously we will compare the register values against the one generated by us using the tool and try to understand them.This will avoid your dependancy in future if we need to change anything.
I have attached the schematics of LMK03328RHST section.Few of the notes on schematics are metiiond below for better understanding
1. Input :
Crystal Input 25MHz to Secondary Input pin (PCB footprints are given for an LVDS oscillator to Primary Input, but not mounted). No AC caps given for both the inputs on board.
2. Output :
200 MHz LVDS on all the 8 Outputs (AC coupling is given on board). These clocks serve clock in pins of High speed Transceiver sections of Xilinx FPGA to run 10Gig Interfaces.
3. Few GPIOs are connexted to FPGA 1.8V IO pins (GPIO0,2,3,5) and rest are PU/PD using resistorss.
4. PDN pin is connected to 1.8V IO pin of FPGA
Please ignore other oscillators visible in the attached schematics tthey are not related to LMK03328 design. Ans also please keep the schematics confidential.
Regards,
VijethaLMK03328.pdf