X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fusb_signalling%2F__init__.py;h=2311b1f3c5af73376d0dcea41c83a178d3beecbf;hp=32902e4561ac4ffdf3b08a993f889c21aa9a1bf8;hb=4c3b1846c9c307c1c35f86d259ddb968ed92718d;hpb=37e4c724efa64dd6061f7bb83f126b81da949771;ds=sidebyside diff --git a/decoders/usb_signalling/__init__.py b/decoders/usb_signalling/__init__.py index 32902e4..2311b1f 100644 --- a/decoders/usb_signalling/__init__.py +++ b/decoders/usb_signalling/__init__.py @@ -19,7 +19,7 @@ ## ''' -USB (low-speed and full-speed) signalling protocol decoder. +This PD decodes the USB (low-speed and full-speed) signalling protocol. Electrical/signalling layer (USB spec, chapter 7): @@ -43,9 +43,6 @@ Data is transferred at a rate of 1.5Mbit/s (low-speed) / 12Mbit/s (full-speed). The SE0 transmitted to signal an end-of-packet is two bit intervals long (low-speed: 1.25uS - 1.50uS, full-speed: 160ns - 175ns). -Protocol output format: -TODO - Details: https://en.wikipedia.org/wiki/USB http://www.usb.org/developers/docs/