Matrix user forums

is it possible to have a program that runs 50hz 80% duty output that is timed with a loop for 3 minutes to run then go to another loop that does 189hz at 34% duty for 1 minute.... im trying to create a fuel injection ultrasonic routine for cleaning and backflushing but not have a hundred 255 counts ...

yep i've explored the options previously in the pwm period macro, it makes the display not match, i've also created desisions based on these and it make the pot sensitive since the resolution is divided , i didnt see the obvious in the link but will study, i've been trying to do this with interputs ...

by using the examples i created a pwm, then added a display as feedback, --> is it possible to have another analog input to vary frequency? if so how could this be done?

interesting- you partually answered my next question, what i want to do next is make the counter box that was in the first part of this post, 32,767 is a good number to use to count injection pulses to as a max value, im gonna use my feedback sr flipflop concept to manage the increment values so the...

wow the counts below zero start with 255, that was exactly what i was looking for, thanks

so is there a such of thing as naming counts below zero, to be able to scroll continious in down count 0 back to 26 26-0 and so on

thanks steve for the fast response- reconfigureing the options to default was the third thing we tryed but for some reason it didnt work at that time, did work today and all is well! hey john chime in

hopefully tommorrow he'll have v4 access to give more info... it does this on windows 7 64 bit and basic old school xp... the program memory is not the issue since we were trying to get only a switch and led macro working first because that program did work last week... it seems like there is someth...

a friend has an error .....Error: Failed to open:libc.pic16.lib or C:\Program Files\SourceBoost\lib/libc.pic16.lib





failure



Return code = -2



Flowcode was unable to assemble the ASM file due to the following errors: what does this mean? he cant download my files to chip

in this simple draw up i can make the tactile switches go from 0-4 then when hits 5 it returns back to zero to do 0-4..... how can i make this count back from 0 to 4,3,2,1 when touching the decrement switch but have it start out at 0.0m/s not 4m/s on power up

here is the switch logic chip- this set up works great with the feedback signals from the other chip that resets the pic configured sr flipflop latches..... port B bit 4 and 5 are the feedback signals for increment and decrement, when i press the tactile in a normal fashion i get one count everytime...

hey guys, nice work on the last flowcode martian, im sorry i dont understand the interupts yet, thats my next thing.... i decided to make a couple versions of it, a pot version, and a push button version that doesnt use interupts, instead i use 2 chips, one that does the lcd/injectors and the other ...

- can you help me understand this one? and how would i be able to interface the injector drive part after the lcd display- i think this is the key to what im trying to do!

fotios- the wiring diagram you posted for the lcd display was a huge help

fotis- i get what the "old voltage <>" pid does by stepping through the program, that freeking genious, it keeps the display from continually updating eliminating flickering... dont know how you thought of that but way cool

alright its starting to make sense except a couple points... i dont understand the voltage change decision (if voltage above or below OLDvoltage)? next- how can the decision variables be the same (voltage= ) for the pulse section and display section....... next- what is the OLDvoltage calculation, i...

fotus- the way you did the lcd display was confusing, your the man so i know you did it that way for a reason....i hacked it up a bunch and came up with this? can i do it this way? it seems to have no screen flicker, but does have this weird deal where i get extra letters when i make a full rotation?

hey fotis- i rigged it up on my car and it does weird things, i'll have to throw the picoscope on it later, but what i suspect is that it needs extra filtering, when i ran my car off the timer chip i had the same issues with double triggering on noise when i used the map sensor and cam sensor in the...

hey fotis what if we switch places for a couple days, i could use a two day deep freeze, diesel over here is abit pricy around $4.80 gallon, dont mean to make you jeleous on this but in 10 years that i've lived in az i've never turned my house heater on :lol: i know this can get confusing but you ha...

i have a plan with this, if i edge filter using gates with r/c time for the switch input then it would all work out fine, http://dl.dropbox.com/u/10367218/LOGIC%20EDGE%20TRIGGER%20TRICKS.asc as long as my input is not longer than the minimum pulsewidth and not smaller than how long it takes to run l...

alright, so it works backwards from the way i though.... is it possible for me to make it loop once everytime a positive edge comes in on a pin only.... like a 555 timer chip in monostable mode, what im trying to do here is reproduce a fuel injection controller that runs a car that i made with a tim...

i wanted to use interupt on this to be able to "speaking in electronics" edge trigger the switch so the switch can turn the output on for 10m/s then waits for switch to have another positive edge again edge .... you may think im learning the stuff backwards but im trying to with the pic chips recrea...

martian- is there any documentation in specific that i can refer to to understand what an interupt is and how it works

As for the not working above 24. That is only because you have not got a decision for above 24 sorry about that i misunderstood, i though you were saying that there was a limitation above 45 that it will only output high if above that number.... i understand what you mean now it was my bad, i accid...

wow thats alot of work, its gonna take me a while to understand everything, i havent progressed to the point of displays yet other than the one you seen of the counter pcb which doesnt count because it logic and 7 segment, its something new and is gonna be fun, how do i make the injection counter pa...