OLS: Support Demon Core RLE mode 3 and advanced triggering#2
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v1ne wants to merge 2 commits intools-improvements-2024-part1from
Open
OLS: Support Demon Core RLE mode 3 and advanced triggering#2v1ne wants to merge 2 commits intools-improvements-2024-part1from
v1ne wants to merge 2 commits intools-improvements-2024-part1from
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This mode can double the space available for RLE messages because unchanged values don't have to be repeated.
This adds code from http://web.archive.org/web/20190317154112/ http://mygizmos.org/ols/Logic-Sniffer-FPGA-Spec.pdf (GPL2 with the option to relicense it to any later version of that license) with reformatting and without typos to set up the LUT bits. The trigger setup starts with a delay to collect the required number of pre-trigger samples. Afterwards, the remaining samples are captured or further trigger stages follow. Each of these extra stages mirrors what the user has defined as trigger pattern: Level and edge triggers are combined and the state machine only advances to the next stage if all levels and at least one edge meets the conditions. Contrary to level triggers, edge triggers are ORed together. This is an undocumented property of the Demon Core.
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This is the last part of sigrok/libsigrok#51