April 2013

Date : 1st April 2013 (K.Allada)

The new TI has a 5-pin connector which connects to faSDC. Below are the instructions from B. Moffit for using this feature.

From B. Moffit:

These are the things you need to do in order to properly use the ribbon cable that connects the faSDC to the TI's FADC connector:


- On the TI Enable dip switch 6 on SC01 (dip switch back near top of Module).
  - This will allow for 250MHz clock to go out through FADC ribbon output. 

- Update to "latest" driver in 
  /site/coda/3.0/linuxvme/ti

- Compile for ARCH=Linux
  make -k ARCH=Linux
  make -k ARCH=Linux tiFirmwareUpdate

- Get the newest firmware for the TI at:
  https://coda.jlab.org/wiki/Downloads/Firmware//ti96.svf

- Update the firmware on the TI:
   tiFirmwareUpdate <VME Address> ti96.svf
    where the <VME address> is the a24 vme Address of the TI... e.g. slot 3:
    <VME Address> = 0x180000


Stuff that needs to be changed in your crl:

- Change busy source:
  tiSetBusySource(TI_BUSY_LOOPBACK | TI_BUSY_FP_FADC);

- Make sure faInit contains the flags necessary for all Front Panel inputs:
   bit    0 (sync source): 1
   bits 3-1 (trigger source): 0 0 1
   bits 5-4 (clock source): 0 1
   High 10bits: A16 Address of FADC signal Distribution module (faSDC): 0xea00 (?)

  that is:
    iFlag = (1<<0) | (1<<1) | (1<<4) | (0xea00);
   OR
    iFlag = 0xea13;
 

- Change faSDC into "level translator" mode... after 
   faInit(...)
  make a call to:
   faSDC_Config(2,1);
  - The '1' is to enable the busy from ribbon 1.  This argument is a mask.. so if you're using
    a different connector, use a bit shift.  E.g. for connector '3':
      faSDC_Config(2,1<<3);
    or if you have several fa250s (using 1 and 2 in this example):
      faSDC_Config(2, (1<<1) | (1<<2) );
    which is equivalent to:
      faSDC_Config(2, 0x3 );

- Change the manner in which Sync is delivered to the system:
  - Replace 
     faSDC_Sync()
    with
     tiSyncReset()
  - This may already be defined in tiprimary_list.c... if so... just comment out
    the call to faSDC_Sync() in your readout list.


The Data format from the TI is found on page 6 of this document:
http://zimbra.jlab.org/home/moffit@jlab.org/docs/eventbuilding.pdf

The TI delivers the "Trigger Bank"