feedback control....

Nistune topics specific to the 6802 cpu

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iceblade
 

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Joined: Wed Feb 11, 2009 9:10 am
Location: BladeRacing.co.uk Bristol U.K.

feedback control....

Post by iceblade »

im using a type 1 board and just wondered if anyone knew what feedback bit 0-7 are i take it one is the o2 sensor, does anyone have a list of which bit is what???
thanks
Joe
Matt
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Post by Matt »

they vary between ECU. i've started making labelling dynamic depending on the ECU selected from the address file

For S13 CA18DET this hasnt been added yet

Now doing some quick searching:
9064 : B6 B8 F7 " " ldaa XB8F7 FEEDBACK_SWITCH
9067 : 85 10 " " bita #$10
9069 : 26 08 "& " bne L9073
906B : 7B 08 53 "{ S" tim #$08DIGITAL_CONTROL_1
906E : 26 03 "& " bne L9073
9070 L9070:
9070 : 7E 91 3E "~ >" jmp L913E
;
9073 L9073:
9073 : B6 10 07 " " ldaa VEHCILE_SPEED
9076 : B1 BF 3B " ;" cmpa XBF3B
95CE L95CE:
95CE : B6 B8 F7 " " ldaa XB8F7 FEEDBACK_SWITCH
95D1 : 85 08 " " bita #$08
95D3 : 27 06 "' " beq L95DB
95D5 : CC 64 00 " d " ldd #$6400
95D8 : 7E 96 51 "~ Q" jmp L9651
;
95DB L95DB:
95DB : C6 03 " " ldab #$03
95DD : BD AC BE " " jsr LACBE
95E0 : F7 10 00 " " stab LH_O2_VOLTAGE
Bit 10 used prior to some kind of speed check

Bit 08 is used before looking at O2 voltage probably for feedback. Havent looked at these too closely before
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