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authorGerhard Sittig <gerhard.sittig@gmx.net>2020-07-17 09:17:02 +0200
committerGerhard Sittig <gerhard.sittig@gmx.net>2020-07-17 17:14:14 +0200
commitf138ba194e11d517d7b2c8a4a7861f71a8773128 (patch)
treead83cbf1ed152bd96b27c653f4ce2114ae3788e5 /decoders/pca9571/pd.py
parent303f43e74aee56f64318be7b0507d0f7a70c1897 (diff)
downloadlibsigrokdecode-f138ba194e11d517d7b2c8a4a7861f71a8773128.tar.gz
libsigrokdecode-f138ba194e11d517d7b2c8a4a7861f71a8773128.zip
pjdl: support PAD bit adjacent to last HIGH DATA bit (no LOW)
The PJDL decoder's previous implementation was incomplete. It assumed that PAD bits always start with a rising edge. Which made the decoder miss the next byte when a previous byte's MSB is set, and the last DATA bit and the next PAD bit kept the signal HIGH between them (no LOW phase was seen between these symbols). Keep the check for the LOW level after the byte's last DATA bit within the bit times' tolerance. But accept when the level remains HIGH, and check for the HIGH bit's width starting from the end of the last DATA bit. Also start the PAD bit's annotation from that "virtual" edge. This patch is based on a fix that was Submitted-By: Julio Aguirre <jcallano@gmail.com>
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