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Diffstat (limited to 'signature/README')
| -rw-r--r-- | signature/README | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/signature/README b/signature/README new file mode 100644 index 0000000..0d0921c --- /dev/null +++ b/signature/README @@ -0,0 +1,34 @@ +------------------------------------------------------------------------------- +Signature from Hewlett-Packard Instrument +------------------------------------------------------------------------------- + +These captures contain the valid signature, confirmed with HP's service manual. + +Details: +http://hpmemoryproject.org/an/pdf/an_222.pdf +https://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1977-05.pdf + + +Logic analyzer setup +-------------------- + +The logic analyzer used was a Saleae Logic (at 6-24MHz): + + Probe Pin + --------------- + 0 START + 1 STOP + 5 DATA + 7 CLOCK + +The sigrok command line used was: + + sigrok-cli -d fx2lafw -c samplerate=24MHz -o <filename> --time 1s + +Time, samplerate and <filename> parameters vary depending on the file. + + +unstable1.sr +------------ + +This is not valid signature, but useful for regression tests. |