951-KLR-PAGES

KLR architecture outline

Reset (pseudo ext interrupt)

• reset jumps to the trigger routine at 077.
• trigger routine jumps to 01B1 if rpm>=1500 (timing delay calculation)
• 01B1 jumps to 200 (blink code calculation)
• blink code calls D00 (detect knock)
  • knock jumps to E00, boost control PID selector
    • E82 (PI) jumps to F00, CV, returns to blink code
    • DDE (filter target boost) returns to blink code
    • E30 (D) returns via DF1 to blink code
• blink code calls 336 diagnostics
• blink code calls housekeeping function table via ret

Housekeeping function table

• 020F(A0E) - throttle processing
• 028D (A8D) - read target boost map
• 0257 (A57) - calculate rpm map axis
• 0282 (A82) - read CV open loop map
• 029E (A9E) - calculate ADC angle tick counts
• 0100 (900) - read RPM maps
• 0012 (812) - sit in a tight loop forever

External interrupt

Timer interrupt

• handle ignition signal
• cycling value PWM signal
• call ADC function table

ADC process

• check if it’s time to do the knock self test
• generate the fake knock pulses if so
• read one of channels 0-3 (different each time)
• read knock sensor
• read MAP sensor
• latch TPS channel for trigger/reset routine to read