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Institute of High Energy Physics, CAS
web: http://www.ihep.cas.cn
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-原始邮件-
发件人:"Jack Hickish"
发送时间:2020-12-21 19:29:19 (星期一)
收件人: casper
抄送: sebastian.jorqu...@ug.uchile.cl
主题: Re: [casper] ROACH2 QDR
I'm not sure how that particular script / firmware works, but in general, a
single read/write action in the ROACH2 QDR transfers 144 bits. The
granularity of the python read writes is 32-bits, so what actually happens
is that a read from casperfpga grabs 144 bytes, carves it up into 4x36 bit
Hi
Thanks for your help.
The firmware and python script had worked (qdr_basic and qdr_counter).I can
get the plot. But I can not understand the PPC readout script in
qdr_counter.py thoroughly .The address is really weird. After studying the wiki
of the CASPER QDR yellow block and
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