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-- LiFei - 2008-05-27

The working log before 08.05.25

Received LTB from THU with half-baked manual. Setup FEE and LTB signal connection and clock. Start to know and initial LTB registers.

Start to debug FEE and LTB together.

Qun Wu came to Bejing. FEE got the trigger signal.

Test ESum and NHit two trigger types, both work well. Send the elec calibration signal for test by hand one by one.

Completed electronic calibration run, took the linear fit result. Move the VEM crate with one LTB and tree FEEs to IHEP Prototype. Implement the original online raw data format.

Update LTB FPGA fireware from version 4 to version 7. The LTB can work now. Finish basic debug of LTB.

Try to get the background data with LTB ESum trigger. But there are some problems when read out FEE data. e.g. some event have head but no foot of some channels.

Use a signal generator to send trigger signal to LTB and LED at same time. Got LED's data of five channels.

Found the trigger number of will jump and isn't continuous.

Found the FEE data buffer will be full. So the former problems are almost caused by this. The LTB must stop send trigger before FEE buffer full.



Revision: r2 - 2008-05-27 - 14:09:29 - LiFei
Parents: TWikiUsers > LiFei

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