Dumping Baseband

User guide

Remember, baseband is quantized, "raw" (uncorrelated), Fourier domain data. After quantization and packetization, the FPGA streams baseband UDP packets on a 1GBE link from SFP port 0 to a small switch packaged up with the box. A dump_baseband process running on the ARM core recieves these packets, and buffer-writes them to files on the HDD.

The dump_baseband.c xyz

Under the hood

The sparrow has four, 10GBE SFP ports but when used in 1GBE mode only port 0 is supported by the CASPER framework.

Benchmarks

• Throughput achievable (until packets are dropped?)
• How much of which resources are taken
  • RAM
  • CPU
• Pin to a core vs not pin to a core?