diff options
Diffstat (limited to 'CS2771/alarm/assign.rst')
| -rw-r--r-- | CS2771/alarm/assign.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/CS2771/alarm/assign.rst b/CS2771/alarm/assign.rst new file mode 100644 index 0000000..f9c802a --- /dev/null +++ b/CS2771/alarm/assign.rst @@ -0,0 +1,25 @@ +=========== +Alarm clock +=========== + +Write an 8051 program which implements an alarm clock. This project will +have two phases, the first of which is described here. The alarm clock +runs all the time, with the current time displayed on the four 7-segment +displays. In this first phase your clock needs to: + 1. use timers to keep time updated to the second + 2. switch between 12 hour and 24 hour modes based switch bank.0 (0==12 + hr, 1==24hr) + 3. if you are in 12 hour mode, use the decimal point on the last + 7-segment display to indicate AM or PM (off = AM, on == PM) + 4. switch between display of hours:minutes and minutes:seconds based on + switch bank.1 (0==hours:minutes, 1==minutes:seconds) + 5. keep the decimal point of the second 7-segment display lit as a + visual separator + +AM/PM should remain indicated regardless of which display mode you are +using. + +You do not (yet) need to be able to: + - set the time (pick a starting value) + - set an alarm time + - perform an alarm |