78M6612SP-EVM-1 Maxim Integrated Products, 78M6612SP-EVM-1 Datasheet - Page 17

• Manufacturer Part Number: 78M6612SP-EVM-1
• Description: Power Management Modules & Development Tools 78M6612 Eval Kit Phase EV Board
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612SP-EVM-1

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UM_6612_044
3 Command Line Interface (CLI)
A firmware load for the 78M6612 was developed to implement split-phase measurement for two
independent phases with a phase offset of 120° or 180°. It implements 4 measurement channels (2
currents and 2 voltages) and measures RMS for each channel as well as power for 2 phases. Data is
provided via the 78M6612 UART at 38400 baud using a Command Line Interface (CLI).
3.1 Identification and Information Commands
The I command is used to identify the revision of the 6612_OMU_S2+3_URT_v114c firmware code. The
host sends the I command to the 78M6612 as follows:
>I<CR>
The 78M6612 replies with the following:
MAX 78M6612 SPL S2+3 URT v114c, Sep 01 2010(c)2010 Maxim Integrated Products.
All Rights Reserved
>
3.2 Reset Commands
A soft reset of the 78M6612 can be performed by using the Z command. The soft reset restarts code
execution at addr 0000 and does not alter flash contents. To issue a soft reset to the 78M6612, the host
sends the following:
>Z<CR>
The W command acts like a hardware reset. The energy accumulators in XRAM will retain their values.
3.3 Individual Address Read
The host can request the information be returned in 2s-complement hex format or human readable
decimal format. $ requests information in hex, and ? requests information in decimal. When requesting
information in decimal, the returned data is preceded by a + or a -.
An example of a command requesting the measured power in Watts (located at address 0x07) in human
readable decimal format is as follows:
>)07?<CR>
An example of a command requesting the measured power in Watts (located at address 0x07) in
2s-complement hex format is as follows:
>)07$<CR>
Rev. 1.0
Z
Description:
Usage:
Reset
Allows the user to cause soft resets.
Z
W
Table 5: CLI Reset Commands
78M6612 Split Phase Evaluation Board User Manual
Soft reset.
Simulates watchdog reset.
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