counter 74ls160

[jklojj]

im trying to connect a counter to a 7 segment however im getting problems and i couldnt understand how im going to connect the input pins to update by the clock cycle. i need to count from 0 to 9  here under is my design. i really appriciate that im a beginner. thanks

[Tom__Sedlack]

~CLR is an active low input that clears the counter when the pin is low.  You can tell by the little circle on the pin. Have a look at what you have your ~CLR pin tied to.  Also, the RCO pin is an output and should not be tied to ground.

I realize you're a beginner so here's a tip.  You can use more then one ground symbol and more then 1 VCC.  It was a little difficult to see what was going on in your schematic.

[jklojj]

thanks but when im leaving the rco not connected to anything no output is shown on the  7 segment what should i do and its a could diagram to count from  0 to 9

[Tom__Sedlack]

You may want to re-check your schematic. I just downloaded your file, disconnected RCO (Pin 15 of the 74LS160D), and connected ~CLR (Pin 1 of the 74LS160D) to VCC.  I'm using MS12 so there may be a bug between yours and mine but by doing these 2 changes, the display counts from 0 to 9 and repeats.

Use the probe tool while your design is running and verify the logic levels are what they should be.  The probe will show either 5V or "HI" for logic 1 and 0V or "LO" for logic 0.  Use the software probe just like you would a physical probe on the actual hardware to debug your circuit.