SHIP Readout Software

1
SHIP Readout Software
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
MBS
SAM3
Triggerbus
GTB1
GTB
Trigger

• 3 parts
• MBS readout function ( N. Kurz)
• SAM readout software
• AMUX readout software

2
System initialization

• MBS (sta acq command)
• reset of SAM3
• loading of configuration data/AMUX program to
  SAM3 VME memory
• loading and starting of SAM3 program
• SAM3
• reset GTB
• address distribution of AMUX ( any arbitrary
  order possible)
• loading of configuration data and AMUX program to
  internal memory of AMUX DSPs
• starting of AMUX DSPs
• setting of GO bit on trigger bus

3
AMUX software

• interrupt driven
• Event queue , 400 Events
• selectable coincidence/ conversion times
• data channels can be enabled/disabled by
  configuration file
• 1 Hz Sync Trigger to ensure Event
  synchronisation, used also for scaler readout

adc-control
HW ADC Trigger
DSP
adc0..3
HW Sync Trigger
CPU
Intterrupts
HW Token In
Event buffer 400
scaler
Timer Overflow
SW ADC Trigger
readout with sync event
64kB internal memory
SW Sync Trigger
patternunit
Event buffer 4
display
DSP timer 3 x 16bit
Event buffer 3
48bit timer 3 x 16bit/50Hz
Event buffer 2
coinc/conv time
25MHz (bei 100MHz DSP)
Event buffer 1
macro pulse counter
Token in
Configuration data
GTB-control
Event
Token out
fast timer 1Mhz
Program
to GTB
GTBoutput
reset with macro pulse
4
SAM3 software

• start and initialization of AMUXes
• GTB readout interrupt driven
• 8 Event buffers in GTBRAM
• DMA for data movement
• handshake protocol with MBS

GTB memory 16bit
VME memory 32bit
DSP
Internal DSP memory
16bit DMA
address pointer
to MBS
32bit DMA
Token out
GTB control
Token in
Trigger to VME trigger module
Token input interrupt