71M6534H Demo Board User’s Manual
Page: 22 of 86
© 2005-2007 TERIDIAN Semiconductor Corporation
V2-0
CONTROL (LCD)
Description:
Allows user to select meter RMS display for voltage or current.
Usage:
MR [option]. [option]
Command
combinations:
MR1. [phase]
Displays instantaneous RMS current
MR2. [phase]
Displays instantaneous RMS voltage
Example:
MR1.3
Displays phase C RMS current.
Phase 4 is the measured neutral current.
No error message is issued when an invalid parameter is entered, e.g. MR1.8.
Commands for Controlling the MPU Power Save Mode:
PS
POWER SAVE MODE
Comment
Description:
Enters power save mode
Disables CE, ADC, CKOUT, ECK, RTM, SSI, TMUX
VREF, and serial port, sets MPU clock to 38.4KHz.
Usage: PS
Return to normal mode is achieved by resetting the MPU (Z command).
Commands for Controlling the RTC:
RT
REAL TIME CLOCK
CONTROL
Comment
Description:
Allows the user to read and set the real time clock.
Usage: RT
[option]
[value] … [value]
Command
combinations:
RTDy.m.d.w: Day of week
(year, month, day, weekday [1 = Sunday]). If the
weekday is omitted it is set automatically.
RTR
Read Real Time Clock.
RTTh.m.s
Time of day: (hr, min, sec).
RTAs.t
Real Time Adjust: (start, trim). Allows trimming of the
RTC.
If s > 0, the speed of the clock will be adjusted by ‘t’
parts per billion (PPB). If the CE is on, the value
entered with 't' will be changing with temperature, based
on Y_CAL, Y_CALC and Y_CALC2.
Example: RTD05.03.17.5
Programs
the RTC to Thursday, 3/17/2005
RTA1.+1234
Speeds up the RTC by 1234 PPB.
The “Military Time Format” is used for the RTC, i.e. 15:00 is 3:00 PM.
