Proton Calorimetry/Meetings/2020/08/12

Minutes for UCL Proton Calorimetry Meetings, 12th August

Present

Simon Jolly, Saad Shaikh, Raffaella Radogna, Fern Pannell

Saad Shaikh

• Added a common-clock FIFO between DDC232 data and UART transmitter.
  • Should be relatively easy to allow another clock domain to access FIFO.
  • Currently only one measurement allowed in FIFO at a time.
  • Use of FIFO allows for shortest possible integration times: new data is always read by FPGA but only sent to FIFO once last sent measurement has finished transmitting.
• Next step is to instantiate processor and send data over Zybo's built-in UART interface.
  • Will probably be slower than current UART interface, but good stepping-stone to learn how to use processor before working on USB interface.
  • Using processor is quite different to development so far: learning curve.
• CoolTerm allows for serial port emulation on MacOS, with capacity to save time-stamped data to txt file.
  • Wrote ROOT macro to read, convert and plot photodiode data live while CoolTerm saves data.
  • Only achieving 5Hz refresh rate, unsure how to make faster.