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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: I'm setting op the knock-sensor but I only got a 16MHz crystal with the board, and I see 4MHz is the normal setup. '''Q''' The "knock-chip" has a programmable-divider so it can also use a 16MHz crystal if it is set up, but where to set up/program this divider? '''A''': You need to recompile firmware with the following line added to my_make: "MY_CONF += -D KNOCK_OSC=16", then the knock chip is initalized with the correct divider for the 16MHz crystal. Thanks.. ------------ Knock-frequency around 7KHz.. from about 6,2-7,8KHz. http://www.vems.hu/files/HansK/Knock_d1.jpg Engine: VW 1800 8v. 81mm bore, 86,4mm stroke. ---------- '''knock-config''' knock_conf=FF #0xFF=Enable knock detection and ignition retard. knock_sampling_window=e2 knock1_frequency=29 #6.94kHz knock1_gain=14 knock1_integrator=11 knock2_frequency=00 #Disabled..? knock2_gain=00 knock2_integrator=00 knock_threshold=50 knock_noise_scale=10 knock_max_retard=18 #6 degrees knock_default_retard=08 #2 degress #what is this?? knock_retard_step=04 #1 degree knock_retard_delay=10 #240ms knock_advance_step=02 #0,5degree knock_advance_delay=10 #240ms knock_minrpm=0F #1500rpm knock_maxrpm=32 #5000rpm '''This setup has not been used yet.. it's just fore preparation.''' ---------- MembersPage/HansK 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.