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taxi/example/KCU105/fpga/README.md
2025-04-09 19:11:54 -07:00

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# Taxi Example Design for KCU105
## Introduction
This example design targets the Xilinx KCU105 FPGA board.
The design places looped-back MACs on the BASE-T port and SFP+ cages, as well as XFCP on the USB UART for monitoring and control.
* USB UART
* XFCP (921600 baud)
* RJ-45 Ethernet port with Marvell 88E1111 PHY
* Looped-back MAC via SGMII via Xilinx PCS/PMA core and LVDS IOSERDES
* SFP+ cages
* Looped-back 1000BASE-X via Xilinx PCS/PMA core and GTH transceiver
* Looped-back 10GBASE-R MAC via GTH transceiver
## Board details
* FPGA: xcku040-ffva1156-2-e
* USB UART: Silicon Labs CP2105 SCI
* 1000BASE-T PHY: Marvell 88E1111 via SGMII
* 1000BASE-X PHY: Xilinx PCS/PMA core via GTH transceiver
* 10GBASE-R PHY: Soft PCS with GTH transceiver
## Licensing
* Toolchain
* Vivado Enterprise (requires license)
* IP
* No licensed vendor IP or 3rd party IP
## How to build
Run `make` in the appropriate `fpga*` subdirectory to build the bitstream. Ensure that the Xilinx Vivado toolchain components are in PATH.
## How to test
Run `make program` to program the board with Vivado.
To test the looped-back MAC, it is recommended to use a network tester like the Viavi T-BERD 5800 that supports basic layer 2 tests with a loopback. Do not connect the looped-back MAC to a network as the reflected packets may cause problems.