Manual

71M6541 Demo Board REV 3.0 User’s Manual
14 Rev 4.0
Commands for Battery Mode Control and Battery Test:
B INFORMATION MESSAGES Comment
Description: Allows the user to control battery modes and to test the battery.
Usage: BL Enters LCD mode when in brownout mode (B> prompt).
BS Enters sleep mode when in brownout mode (B> prompt).
BT Starts a battery test – when in mission mode (> prompt).
BWSn Set wake timer to n seconds for automatic return to brownout
mode.
BWMn Set wake timer to n minutes for automatic return to brownout
mode.
Commands for Controlling the RTC:
RT REAL-TIME CLOCK CON-
TROL
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.
> Access look-up table for RTC compensation.
Example: RTD05.03.17.5 Programs the RTC to Thursday, 3/17/2005
RTA1.+1234 Speeds up the RTC by 1234 PPB.
>0???? Read the first four bytes in the look-up table.
The “Military Time Format” is used for the RTC, i.e., 15:00 is 3:00 PM.
Commands for Accessing the Trim Control Registers:
T TRIM CONTROL Comment
Description: Allows user to read trim and fuse values.
Usage: T [option]
Command
combinations:
T4 Read fuse 4 (TRIMM).
T5 Read fuse 5 (TRIMBGA)
T6 Read fuse 6 (TRIMBGB).
Example: T4 Reads the TRIMM fuse.
These commands are only accessible for the 71M6541H (0.1%) parts. When used on a 71M6541 (0.5%) part,
the results will be displayed as zero.