delay_us(1200000); 7 segment do not run

[jackhammer]

I use 7 segment 4 base create colck digital do not have second base


24:00

I want delay 7 segment 4 base at minute help me


at first

delay_us(200);

normal number very quickly

delay_us(20000);

for a second 7segment have symptoms flashing

delay_us(1200000);

for a minute 7 segment do not run

[Ttelmah]

Try reading the manual....

What does it say for 'parameters:' for the delay_us function?.

Best Wishes

[jackhammer]

ู^
^
^
thank you

what have function delay

delay_?? for a minute

[FvM]

Consider delay_ms().

[Ttelmah]

Seriously though, this is not the way to create a digital clock.
Problem is, that the other code to actually display the data, takes _time_. The accuracy of a clock done like this will be appalling.
You need to be using the hardware to actually generate the time. A timer interrupt, or an RTC, so the time carries on counting, even if you are doing other things.

Best Wishes

[uN_Eof]

Try using a DS1307.
It's great, it has a pin that changes its state each second, connect that one to an INT_EXT pin, and you're good to go. Also you can get full date and time info by I2C.

http://www.maxim-ic.com/datasheet/index.mvp/id/2688

[bkamen]

or use a PIC with a built-in RTC like the PIC18 J-series.

I don't know if ALL of them have RTC's, but a lot do. I like the J11's.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D