SIS Documentation
SIS3800
Scaler/Counter
Page 9 of 39
4 Getting
Started
The minimum setup to operate the SIS3800 requires the following steps:
•
Check the proper firmware design is selected (should be design zero, i.e. all jumpers of
jumper array J500 set.
•
Select the VME base address for the desired addressing mode
•
Select the VME SYSRESET behaviour via J520
•
turn the VME crate power off
•
install the scaler in the VME crate
•
connect your signals to the counter
•
turn crate power back on
•
set global count enable via key address 0x28
•
read all counters with clock shadow register via block transfer from start address 0x280
(read) or 0x300 (read and clear) or subsequent single word reads.
A good way of checking first time communication with the SIS3800 consists of switching on
the user LED by a write to the control register at offset address 0x0 with data word 0x1 (the
LED can be switched back off by writing 0x1000 to the control register)..
4.1 Factory
Default
Settings
4.1.1 Adressing
SIS3800 boards are shipped with the En_A32, the En_A24 and the En_A16 jumpers installed
and the rotary switches set to:
Switch
SW_A32U SW_A32L SW_A24U
SW_A24L
SW_A16
J A_11
Bits 7-4
Bits 3-0
Setting
3
8
3
8
3
8
0
0
Jumper A_11 is open (bit 11 set).
Hence the unit will respond to the following base addresses:
Mode
Base address
A32
0x38383800
A24
0x383800
A16
0x3800
Firmware Design
Design 1 of the FLASHPROM is selected (lowest jumper of jumper array J500 open, the
others set).
4.1.2 System Reset Behaviour
J520 is set, i.e. the SIS3800 is reset upon VME reset.
5 Firmware
Selection
The FLASH PROM of a SIS360x/38xx board can contain several boot files. A list of
available FLASHPROM versions can be found on our web site
http://www.struck.de
in the
manuals page. If your FLASHPROM has more than one firmware design, you can select the
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