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[http://vems.hu/vt/help/v3/v3_inputmux.html analog input multiplexer VT help] Experimental setup: this was installed in a different way than normally. Apparently a '''filtering capacitor''' was NOT removed from inpmux output (from genboard !). VemsTune (2016-06 or newer needed, 2015 VT will NOT support this regardless of any attempt ) ini files updated manually (from zip !) * enabled the multiplexer * '''B 0..3 channels react perfectly, and fast''' * A 0..3 react, but when pulled to GND can only be pulled to 1.2V first, and than SLOWLY going down below that (appr 0.5V) ** we '''suspect a filtering capacitor left on mainboard mcp3208/ch6''' (A0=mch6 also decreases when A3 pulled down to GND) *** R94=33k *** '''C61=220nF MUST BE REMOVED when using mcp3208ch6 for analog input multiplexer'''. Luckily C61 is on bottom side of genboard, very easy to access (middle cap of 3 caps in the neighborhood). ---- '''Setup''' * uploaded the 1.2.36 FW * and updated the inifile from Dave's page to newest VT. ** use newest VT as instructed and overwrite files under VTinst/config dir with files from freshly downloaded zip (and do NOT "update ini files from web" in this case) *** the files are overwritten if you overwrite them: after VT restart all ini files are read (they are NOT cached in DB or something...) *** if insisting on bleeding edge, follow instructions precisely otherwise just wasting time. If still not everything rectified: specify versions and steps you made so we can see where the path was lost I did it. Now i see the MUX Raw values. I made a log. Startup-> A1 pulldown to GND for 10sec->after wait 10sec then pull down the A2 for 10sec-and wait 10sec.......to the last. The inputs wasn't tested in sequenced because my pinouts which i got for the VEMS Ecu is incorrect. On some input the voltage doesn't want to go to 0V but i measured 0V. The pinouts of ECONOSEAL 10 on my paper: 1: A channel 0 pulled up 2: A channel 1 3: A channel 2 pulled up 4: A channel 3 5: B channel 0 pulled up 6: B channel 1 7: B channel 2 pulled up 8: B channel 3 9: +5V 10: GND A channel connected to MCP3208 ch6 B channel connected to MCP3208 ch7 Line0 connected to low current output ch2(internal) Line1 connected to low current output ch3(internal) The log file: http://www.vems.hu/files/Norbitron/v3.3_u011451-2016.09.20-10.26.15.vemslog ---- I supplemented the page with more and fixed information please read again. V3 Sn:11451 Ordered with 6EGT input + analog input multiplexer. A channel output connected to MCP3208 ch6 B channel output connected to MCP3208 ch7 ECU input on ECONOSEAL10 connector: A ch0 = pulled up - Launch Button A ch1 = no pulled up - Fuel pressure sensor(HONEYWHELL) with external +5V supply. A ch2 = pulled up - ALS Switch A ch3 = no pulled up - Not connected B ch0 = pulled up - Oil temp B ch1 = no pulled up - Should be pulled up for button for Wide open throttle or i can connect this to "A ch0" paralell with Launch button. B ch2 = pulled up - Oil pressure sensor (Original 1pin sensor, case is the GND) B ch3 = no pulled up - Should be pulled up for Switch to select A/B program. Line0 connected to low current out ch2 Line1 connected to low current out ch3 All Analog input multiplexer inputs 0-5V (protected) I need more pulled up channels for switches and buttons exactly 2. How can i use "B Ch1" and "B Ch3" channel pulled up? ---- '''Recommendation:''' for best backwards compatibility (with 2016-06 fw) * use direct inputs for switch/control inputs (especially the TPS2, PPS1, PPS2 ETC inputs) * allocate inpmux inputs for logging (multiple EGT and oilpressure, fuelpressure). * so '''6 direct analog inputs''': ** 1 EGT ** 4*pulled up analog input for switches (ALS, shiftcut, configswitch) and buttons and oil temp sensor ** 1nopullup for fuel pressure sensor '''8 inputs of analog input multiplexer''': * oil pressure sensor (no pullup) * another 5*EGT input * 2 spare for logging '''copy this URL and the above into the order comment'''. * an [https://shop.vems.hu/catalog/analog-input-multiplexer-p-197.html analog input multiplexer] will be installed inside the VEMS ECU, and a flying loom EC10 or SSC6 if needed - 1-wire interface no - EGT input 6 - ETC BridgeOutput_Interface 0 - Flyback HighZ-only 30V flyback - Hi-side PFET outputs 0 - ignition driver 6+2 - Knock input channels 2 - LCD connection yes - MAP connection offboard(electronic) - mounting-style flanged case - primary_trigger EC36/27 VR - secondary_trigger HALL - Service slow - Special requests ordercomment - withSDcard removable
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