Maxim Integrated 71M6521BE Energy Meter IC Family Software - Manual (Page 8)

71M652X Software User’s Guide
Revision 1.7 TERIDIAN Proprietary 8 of 138
© Copyright 2005-2007 TERIDIAN Semiconductor Corporation
List of Figures
Figure 2-1: Software Structure ....................................................................................................................................... 16
Figure 3-1: Port Speed and Handshake Setup ............................................................................................................... 21
Figure 5-1: STARTUP.A51 ............................................................................................................................................. 46
Figure 5-2: INIT.A51 ....................................................................................................................................................... 46
Figure 5-3: main() Program ............................................................................................................................................ 47
Figure 5-4: main_init() Function ..................................................................................................................................... 48
Figure 5-5: main_run() Function ..................................................................................................................................... 49
Figure 5-6: Timer ISRs ................................................................................................................................................... 52
Figure 5-7: stm_run() - Process Software Timers (non-ISR) .......................................................................................... 52
Figure 5-8: CE_BUSY ISR ............................................................................................................................................. 53
Figure 5-9: XFER_BUSY/RTC ISR ................................................................................................................................ 54
Figure 5-10: Serial 0 and 1 isr ........................................................................................................................................ 55
Figure 5-11: ce_update .................................................................................................................................................. 56
Figure 5-12: meter_LCD................................................................................................................................................. 57
Figure 5-13: Command Line Interpreter ......................................................................................................................... 58
Figure 5-14: Auto-Calibration ......................................................................................................................................... 59
Figure 5-15: ce_default Calibration ................................................................................................................................ 60
Figure 5-16: Calibration, continued ................................................................................................................................ 61
Figure 5-17: cmd_pending() ........................................................................................................................................... 62
Figure 5-18: Single-Byte Read/Write .............................................................................................................................. 63
Figure 5-19: Multi-Byte Read ......................................................................................................................................... 64
Figure 5-20: Multi-Byte Write .......................................................................................................................................... 65
Figure 5-21: Power-Up Sequence .................................................................................................................................. 67
Figure 5-22: Sag and Dip Conditions ............................................................................................................................. 79
Figure 5-23: Sag Event .................................................................................................................................................. 79
Figure 5-24: Crystal Frequency over Temperature ......................................................................................................... 80
Figure 5-25: Crystal Compensation ................................................................................................................................ 81
Figure 5-26: Operation Modes State Diagram ................................................................................................................ 97
Figure 6-1: Memory Map .............................................................................................................................................. 103
Figure 6-2: 80515 µC Block Diagram ........................................................................................................................... 118
Figure 6-3: Watchdog Block Diagram .......................................................................................................................... 126
Figure 6-4: Interrupt Sources Diagram ........................................................................................................................ 134
List of Tables
Table 3-1: Memory Map ................................................................................................................................................. 19
Table 5-1: Internal Data Memory Map ............................................................................................................................ 37
Table 5-2: Internal Data Types ....................................................................................................................................... 40
Table 5-3: Demo Code Versions .................................................................................................................................... 41