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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: We need to add detailed description of sensors and configuration parameters here. Most can be had from GenBoard/InitialConfig page. ---- '''GenBoard/VerThree knockdetection HW''' '''Needed for Knock Sensor input:''' :R1, R2 Knock Channel 1 (10..22k) (analog signal amplitude gain can be adjusted with these; but also in the digital domain - in config) :R3, R4 Knock Channel 2 (same as R1,R2) :R17 1M :C1 Knock Channel 1 (100nF) :C2 Knock Channel 2 (same as C1) :C14 0.22uF :C16 100nF :C18, C19 22pF :Y2 4MHz XTAL (16MHz might work with matching config) :U5 TPIC8101DW (not in rescue kit! Optional, see WebShop) C17 is no longer used. (was: 2.2nF, can now be left off) V3.2: if you ordered knock-kit (in same order as genboard) than U5=TPIC8101DW and Y2=crystal already soldered onboard (crystal missing on a few boards sent out before 20041030.) ---- The knock sensor chip installation: Pin 1 points to the connectors-side. (so pin 1 points to the short side of the board) http://vems.hu/www.vems.co.uk/VEMS/KnockChipPads.jpg http://vems.hu/www.vems.co.uk/VEMS/KnockChipInPlace.JPG The crystal goes next to the chip. http://vems.hu/www.vems.co.uk/VEMS/KnockChipCrystal.jpg ---- '''v3.3''' The knockchip and 4MHz crystal is installed (if ordered v3.3 with knock-kit), the only thing needed is to connect the sensor input through the 3 pin header (pads) at the northwest corner (looking at the "top") : * North pad (close to board-edge): knockA signal (channel 0) (usually through EC18pin3) * Middle pad: knock GND (usually through EC18pin2) * Southern pad: knockB signal (channel 1) - usually not used TODO: take pictures of board region around knock chip If the knock signal is not routed via EC18, it can be routed through a connector or flying loom cable mounted through frontplate or endplate. ---- '''See also''' * DetonationDetection/LogAnalysis * DetonationDetection * Back to GenBoard/Manual/ConnectingSensors * Back to GenBoard/Manual Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.