Yes agree, just learning purpose. I understand the working of 74ls163. It increments or load the value. I wanted to see that how it create specific delay for LED.Yes, it's certainly possible. But why not use a simple 555 (or a 556) instead of a counter to get what you want?
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It's really not that hard, it's a function of the oscillator frequency, and the counter itself. It's rather simple math. Do you need help with that?Yes agree, just learning purpose. I understand the working of 74ls163. It increments or load the value. I wanted to see that how it create specific delay for LED.
As I know time=1/frequency. Suppose I need two second delay than I have to use 1/2 hz crystal clockIt's really not that hard, it's a function of the oscillator frequency, and the counter itself. It's rather simple math. Do you need help with that?
if you use your existing configuration then you can set up the lowermost 3 bits 1+(8-(8-1))to(8-(8-8)) -- f.x=f.clk/(2 to 9) for frequency divider to generate a quanted delay t=1/f.x
"Clock frequency" divided by "counter" = flash rate.As I know time=1/frequency. Suppose I need two second delay than I have to use 1/2 hz crystal clock
My question is can we set specific delay without changing clock frequency.
Both ci139 and hp1729 have given you pretty good answers. My only observation is that your oscillator frequency will determine your timer's resolution. That is, the resulting time lapse will always be a multiple of your base frequency. In example, if you use a 10Hz oscillator, then the smallest unit of time that you can use to determine any time lapse will be 0.1 seconds. You won't be able to generate a pulse lasting, for instance, 0.05 seconds, without adding more complex electronics.As I know time=1/frequency. Suppose I need two second delay than I have to use 1/2 hz crystal clock
My question is can we set specific delay without changing clock frequency.
Something like the above. LM555 oscillates at about 16 Hz. The counter divides by 16. The LED gives a bright blink about every second.Hello
Is it possible to create specific delay using counter? I did simple experiment. I have connected led at output pin of counter. I saw led is turn on and off.
Let's suppose, is it possible to turn on Led on and off LED for 1 second?
View attachment 112219
Nothing in your zip file was viewable to me.i made a test of what i proposed
it seems that stacking too many events into tight time frame
gets a kick back from device capabilities
and the share amount of quality information on datasheets
the control required to implement a seemingly easy thing turned out to be quite extensive
- setting up a variable cycle DEMO introduced new issues
-- that wouldn't had to be implemented otherwise- the major problem rises from ::
A. attempt to use Q3 for LED driving (other than "3." below) -- conceptuallyi made a test of what i proposed
it seems that stacking too many events into tight time frame
gets a kick back from device capabilities
and the share amount of quality information on datasheets
the control required to implement a seemingly easy thing turned out to be quite extensive
- setting up a variable cycle DEMO introduced new issues
-- that wouldn't had to be implemented otherwise- the major problem rises from ::
A. attempt to use Q3 for LED driving (other than "3." below) -- conceptually
- - - i had to introduce an addittional storage buffer for Q3 to load it
- - - because using the "Terminal count" for updating it disabled using "variable mod-s" for DEMO
B. loading the counter bit-lines at "Terminal count"
C. using the "mod 2" cycle with this configuration
without practical requirements stated for such multi mode device
it's difficult to say what exactly should happen at "mod 2" mode
in the DEMO it's assumed for "Count 0"(e.g."mod 2") that the Q3 is not changed
which is not a must and can be disabled by changing CLRX to CLR for lower leftmost 4003- attempting to draw power from digital lines for other uses (LED)
. . . as for forward signal reference simultaneously (killing sharp signal edges confusing timing . . .)
i needed to test the decade v. model of SN74x163 anyway so i give that also a try
View attachment 112578
View attachment 112579
- - - i had to introduce an addittional storage buffer for Q3 to load it
- - - because using the "Terminal count" for updating it disabled using "variable mod-s" for DEMO
B. loading the counter bit-lines at "Terminal count"
C. using the "mod 2" cycle with this configuration
without practical requirements stated for such multi mode device
it's difficult to say what exactly should happen at "mod 2" mode
in the DEMO it's assumed for "Count 0"(e.g."mod 2") that the Q3 is not changed
which is not a must and can be disabled by changing CLRX to CLR for lower leftmost 4003- attempting to draw power from digital lines for other uses (LED)
. . . as for forward signal reference simultaneously (killing sharp signal edges confusing timing . . .)
i needed to test the decade v. model of SN74x163 anyway so i give that also a try
View attachment 112578
View attachment 112579