Major update to EM4x70 support:

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1. Rework how communications with tag occur.
    a. bitstream to be sent to the tag is now fully pre-generated.
    b. bits sent and received are logged with start / end times.

2. Support built-in `hw dbg` for controlling verbosity of debug output

The new bitstream generation and logging has exposed a surprising legacy behavior ... each of the command that sent additional data (beyond the command) were:
* inserting an extra RM zero bit
* force-enabling command parity is used

This was not expected.  However, this PR maintains the behavior of the existing code.

TODO: Root-cause why the third RM bit is needed.  Fix code to remove that hack.

TODO: change the arm/client interface to ONLY use arrays of bytes, with well-defined content endianness, to avoid this problem.

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This commit is contained in:

Henry Gabryjelski 2025-03-15 23:34:01 -07:00

parent f31ee2633f

commit 21ad101ff5

6 changed files with 2653 additions and 243 deletions

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