I have Daewoo Nexia UZ with ECU KDAC ZXIT. SoftID is $A7. CPU is 68hc11f1
I want to add into the code multi-spark ignition and internal emulator of induction sensor of the position of crank 60-2. If sensor bad etc.
It encountered problem with the dismantling of original code, which corresponds for working of interruptions from the sensor.
Signal enters simultaneously two input of IRQ - IC1 and PAOVI. PAOVI is initially forbidden. The subroutine IC1 finds the passage of cams, forbids itself, solves PAOVI and are filled PACNT by a certain value. PAOVI operates after this, several times, each time again filling PACNT by value, near the overloading. And after this again enable IC1. And so on each revolution. I cannot trace the logic of work. It is very complicated. The array the computable of index words is used

Thanks.
Nikolay.
PS Sorry of my bad english... Use http://babelfish.yahoo.com