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mu2eUtil Users' Guide

mu2eUtil is a very powerful debugging application that provides a direct interface to the DTC interface library. Running mu2eUtil -h produces the following output:

[mu2edaq@mu2edaq01 ~]$ mu2eUtil -h
Usage: mu2eUtil [options] [read,read_data,reset_detemu,toggle_serdes,loopback,buffer_test,read_release,DTC,program_clock]
Options are:
    -h: This message.
    -n: Number of times to repeat test. (Default: 1)
    -o: Starting Timestamp offest. (Default: 1).
    -i: Do not increment Timestamps.
    -S: Synchronous Timestamp mode (1 RR & DR per Read operation)
    -d: Delay between tests, in us (Default: 0).
    -D: CFO Request delay interval (Default: 1000 (minimum).
    -c: Number of Debug Packets to request (Default: 0).
    -b: Number of Data Blocks to generate per Event (Default: 1).
    -E: Number of Events to generate per DMA block (Default: 1).
    -a: Number of Readout Request/Data Requests to send before starting to read data (Default: 0).
    -q: Quiet mode (Don't print requests) Additionally, for buffer_test mode, limits to N (Default 1) packets at the beginning and end of the buffer.
    -Q: Really Quiet mode (Try not to print anything)
    -s: Stop on SERDES Error.
    -e: Use DTCLib's SoftwareCFO instead of the DTC CFO Emulator
    -t: Use DebugType flag (1st request gets ExternalDataWithFIFOReset, the rest get ExternalData)
    -T: Set DebugType flag for ALL requests (0, 1, or 2)
    -f: RAW Output file path
    -p: Send DTCLIB_SIM_FILE to DTC and enable Detector Emulator mode
    -P: Send <file> to DTC and enable Detector Emulator mode (Default: "")
    -g: Generate (and send) N DMA blocks for testing the Detector Emulator (Default: 0)
    -G: Read out generated data, but don't write new. With -g, will exit after writing data
    -r: # of rocs to enable. Hexadecimal, each digit corresponds to a ring. ROC_0: 1, ROC_1: 3, ROC_2: 5, ROC_3: 7, ROC_4: 9, ROC_5: B (Default 0x1, All possible: 0xBBBBBB)
    -F: Frequency to program (in Hz, sorry...Default 166666667 Hz)
    -C: Clock to program (0: SERDES, 1: DDR, Default 0)

h2. mu2eUtil Operating Modes

mu2eUtil supports the following "mode" commands: read,read_data,reset_detemu,toggle_serdes,loopback,buffer_test,read_release,DTC,program_clock

  1. read:
    Performs a DTC read, through the DTC library, printing out any buffers that are already available. Packet checking is performed.
  2. read_data:
    Performs a "raw" read, printing out any buffers that are already available.
  3. reset_detemu:
    Performs a full reset of the Detector Emulator part of the firmware
  4. toggle_serdes:
    Changes the output SERDES between 2.5 Gbps and 3.125 Gbps
  5. loopback:
    Performs a SERDES loopback test through the DTC library
  6. buffer_test:
    Creates requests for data and performs a "raw" read of the resulting buffers
  7. read_release:
    Discard available buffers.
  8. DTC:
    Creates requests for data and performs a "DTC read" of the resulting buffers
  9. program_clock:
    Set the oscillator frequency for the specified clock

rocUtil Users' Guide

rocUtil is used to communicate with a ROC connected to the DTC using DCS Control packets.
This utility is designed for the prototype ROC's protocol; which is subject to change.
Running rocUtil -h produces the following output:

[mu2edaq@mu2edaq01 ~]$ rocUtil -h
Usage: rocUtil [options] [read_register,reset_roc,write_register,write_extregister,test_read,read_release,toggle_serdes]
Options are:
    -h: This message.
    -n: Number of times to repeat test. (Default: 1)
    -d: Delay between tests, in us (Default: 0).
    -w: Data to write to address
    -a: Address to write
    -b: Block address (for write_rocext)
    -q: Quiet mode (Don't print requests)
    -Q: Really Quiet mode (Try not to print anything)
[mu2edaq@mu2edaq01 ~]$

rocUtil Operating Modes

rocUtil supports the following "mode" commands: read_register,reset_roc,write_register,write_extregister,test_read,read_release,toggle_serdes

  1. read_register:
    Read the given register of the ROC
  2. reset_roc:
    Perform a "ROC Reset"
  3. write_register:
    Write the given value to the given "main" register of the ROC
  4. write_extregister:
    Write the given value to one of the "extended" registers of the ROC
  5. test_read:
    Perform a "raw" read of DCS packets from the ROC
  6. read_release:
    Discard available DCS buffers
  7. toggle_serdes:
    Changes the output SERDES between 2.5 Gbps and 3.125 Gbps

Examples

The flow of development is:
  1. mu2eUtil buffer_test
  2. mu2eUtil DTC
  3. artdaqDriver <fixed number of events>
  4. mu2e_artdaq <Run Control mode>

For the mu2eUtil buffer_test:

export DTCLIB_SIM_ENABLE=N # Use the real DTC without a separate CFO card
mu2eUtil -n 1 buffer_test # Sends a Readout Request and Data Request to ROC, displays response
mu2eUtil -n 1000 buffer_test # Make sure things work in a more free-running manner

mu2eUtil DTC mode decodes the DataHeader packets coming from the DTC, but otherwise works in a very similar way as mu2eUtil buffer_test:

export DTCLIB_SIM_ENABLE=N # Use the real DTC without a separate CFO card
mu2eUtil -n 1 DTC # Sends a Readout Request and Data Request to ROC, displays response
mu2eUtil -n 1000 DTC # Make sure things work in a more free-running manner