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Problem when we using three out of four trigger. For example : a track pattern. The original plan is using three “AND” and one ”NOT” description to make a ¾ trigger. There will have about 5000 trigger conditions need to put into FPGA for this plan.
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Problem when we using three out of four trigger For example : a track pattern The original plan is using three “AND” and one ”NOT” description to make a ¾ trigger There will have about 5000 trigger conditions need to put into FPGA for this plan.
Problem when we using three out of four trigger Now add another track The ¾ design will become
How to solve this problem Assume now we have several tracks fire the same st1,2,4 hodo paddle. Put all this conditions into pipeline mode and using “AND” to force all the hodo fire pattern fit the ¾ condition