Maxim Integrated 71M6521BE Energy Meter IC Family Software User Manual

Page 70

71M652X Software User’s Guide

Revision 1.7

TERIDIAN Proprietary

70 of 138

When compiled without the on-line help option (help.c), CLI.C takes about 14Kbytes of program
space. Adding the on-line help will use another 5Kbytes. When designing a real meter, CLI.C can
easily be removed without major changes to the software.

2. FLAG

Basic FLAG AMR Protocol

flag0.c

implements a basic FLAG AMR protocol for SER0

flag1.c

implements a basic FLAG AMR protocol for SER1

flag.c

code shared shared by flag0.c and flag1.c

3. IO: Input/Output

cal_ldr.c

load routines for calibration factors

eep24C08.c

routines supporting the 24C08 EEPROM

eeprom.c

interrupt-driven serial EEPROM routines

eepromp.c

high-speed polling EEPROM routines

eepromp3.c

polling interface for µWire EEPROM

iiceep.c

I2C bus interface using the chip’s I2C hardware

iolite.c

IO subroutines for use by the calibration loader (cal_ldr.c)

lcd.c initialization,

configuration, read and write routines for LCDs

lcd_VIM808.c

routines for driving Varitronix VIM-808 LCS

rtc.c

RTC read, write, reset, and trim routines

ser.c

baud rate table shared by ser0.c and ser1.c

ser0.c initialization,

configuration, interrupt, read and write routines for SER0

ser1.c initialization,

configuration, interrupt, read and write routines for SER1

serial.c

legacy code that implements a fully buffered interrupt-driven serial driver

tmr0.c initialization,

configuration, interrupt, read and write routines for TMR0

tmr1.c initialization,

configuration, interrupt, read and write routines for TMR1

uwrdio.c

3-wire interface using direct control of DIO4 and DIO5. It can be adapted to nonstandard

clock polarities and edges, 4-wire SPI EEPROMs, and TSC chips other than the 71M6521

(see comments in the source file)

uwreep.c

a 3-wire interface using the high-speed 3-wire interface hardware of the 71M6521

4. Main:

Main top-level tasks, 6521-specific

batmodes_20.c battery mode logic
defaults.c

contains the table of start-up default values

main.c

main() with startup sequence and main task switch

main.c

initialization and main loop

5. Meter: Metering

Functions

calphased.c auto-calibration
ce.c initialization,

configuration, interrupt, read and write routines for the compute engine

ce652X.c

data exchange between CE data RAM and XRAM

error.c

error recording and logging

freq.c

routines to calculate and display frequency

io652X.c

control of analog front end, multiplexer, RTM, I/O pins

meter.c

contains overall meter logic to calculate and display meter data

misc.c

unused legacy code for managing interrupts and priorities

pcnt.c

code for counting output pulses

peak_alerts.c detects

out-of-range line values

phase_angle.c

calculates and displays voltage-to-current phase angles

psoft.c

generates two additional pulse outputs using DIO pins

pulse_src.c

directs line measurements to any pulse output

pwrfct.c

routines for calculating the power factor

rms.c

calculates and displays Vrms and Irms

vah.c calculates

VAh

varh.c calculates

VARh

vphase.c calculates

voltage-to-voltage phase angles for multiphase meters

wh.c calculates

6. UnitTest:

Test and Verification (not Shipped with standard Demo Code)

eepromtest.c

basic test of the EEPROM driver

This manual is related to the following products:

71M6521FE Energy Meter IC Family Software 71M6521DE Energy Meter IC Family Software