Difference between revisions of "CAEN V792 ADC"
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| − | + | |colpsan="8" align="center"|CRATE NUMBER | |
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Revision as of 21:13, 30 November 2007
command used to compile library
v792 >ccppc -fno-builtin -fno-for-scope -fstrength-reduce -mlongcall -mcpu=604 -DCPU=PPC604 -DVXWORKS -D_GNU_TOOL -DVXWORKSPPC -I/usr/local/coda/2.5/common/include -I../h -c -o v792Lib.o caen792Lib.c
Module address
The rotary dials for the address were set by the factory to be 32 bit addressing with "e" and "e" on the last dials.
We would like to use 24 bit addressing so lets set the first two dials to "ee". The last two dials should also be set to something non-zero in order to permit 32 bit addressing. The MVME-6100 board only has a small amount of 32 bit VME addressing space mapped to the MVME's address space.
VME CPU
A24 0x000000-0xffffff 0x90000000-0x90ffffff
A32 0x08000000-0x11ffffff 0x80000000-0x89ffffff
If you set the last two dials to 0 8 then the addressing will look like
c792Init 0xee0000 (for A24 addressing)
or
c792Init 0x08ee0000 (for A32 addressing)
Data banks
The ADC module library will send the entire block over unless you set the ADC for sparcification.
Assuming we read all 32 channels then the data block will look like
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CRATE NUMBER |
ADC1: Crate #=0 Ch data Hex 0 3896 f8005f38 16 3896 f8105f38 1 3896 f8015f38 17 3896 f8115f38 2 3896 f8025f38 18 3896 f8125f38 3 3896 f8035f38 19 3896 f8135f38 4 3896 f8045f38 20 3896 f8145f38 5 3896 f8055f38 21 3896 f8155f38 6 3896 f8065f38 22 3896 f8165f38 7 3896 f8075f38 23 3896 f8175f38 8 3896 f8085f38 24 3896 f8185f38 9 3896 f8095f38 25 3896 f8195f38 10 3896 f80a5f38 26 3896 f81a5f38 11 3896 f80b5f38 27 3896 f81b5f38 12 3896 f80c5f38 28 3896 f81c5f38 13 3896 f80d5f38 29 3896 f81d5f38 14 3896 f80e5f38 30 3896 f81e5f38 15 3896 f80f5f38 31 3896 f81f5f38 Event Counter=46=0xfc00002e