Difference between revisions of "CAEN V792 ADC"
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[[Image:CAEN_V792_QDC_Address.jpg | 200 px]] | [[Image:CAEN_V792_QDC_Address.jpg | 200 px]] | ||
| − | Module address | + | ==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 | |
Revision as of 19:34, 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