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Generation 2 USRP Build Documentation

# Dependencies and Requirements

## Dependencies

The USRP FPGA build system requires a UNIX-like environment with the following dependencies

- Xilinx ISE 12.2
- GNU Make
- (Recommended) GNU Bash

The N200 will work with the WebPack version of ISE.

## Requirements

- Xilinx ISE Platform Requirements

## What FPGA does my USRP have?

- USRP N200: Spartan® 3A-DSP 1800
- USRP N210: Spartan® 3A-DSP 3400

# Build Instructions

- Download and install Xilinx ISE 12.2
- To add xtclsh to the PATH and to setup up the Xilinx build environment run
  - source <install_dir>/Xilinx/12.2/ISE_DS/settings64.sh (64-bit platform)
  - source <install_dir>/Xilinx/12.2/ISE_DS/settings32.sh (32-bit platform)
- Navigate to usrp2/top/{project} where project is:
  - N2x0: For USRP N200 and USRP N210
- To build a binary configuration bitstream run make <target> where the target is specific to each product. To get a list of supported targets run make help.
- The build output will be specific to the product and will be located in the usrp2/top/{project}/build directory. Run make help for more information.

## N2x0 Targets and Outputs

### Supported Targets

- N200R3: Builds the USRP N200 Rev 3 design.
- N200R4: Builds the USRP N200 Rev 4 design.
- N210R3: Builds the USRP N210 Rev 3 design.
- N210R4: Builds the USRP N210 Rev 4 design.

### Outputs

- build-<target>/u2plus.bit : Configuration bitstream with header
- build-<target>/u2plus.bin : Configuration bitstream without header
- build-<target>/u2plus.syr : Xilinx system report
- build-<target>/u2plus.twr : Xilinx timing report