Maxim Integrated 78M6631 - Manual (Page 29)

UG_6631_078 78M6631 Firmware Description Document
Rev 2 29
7 Command Line Interface (CLI) Description
The 78M6631 firmware implements an interface/protocol to the user or host called Command Line
Interface (CLI). This interface facilitates communication via UART between the 78M6631 and the host
processor. The CLI provides a set of commands which are used by the host to configure and to obtain
information from the 78M6631.
7.1 Identification and Information Commands
The I command is used to identify the revisions of demo code and the contained CE code. The host
sends the I command to the 78M6631 as follows:
>I
The 78M6631 will reply to the host the following:
TSC 78M6631 rev B725
>
7.2 Reset Commands
A soft reset of the 78M6631 can be performed by using the Z command. The soft reset restarts code
execution at addr 0000 but does not alter XRAM contents. The soft reset also sets all the registers to their
default values. To issue a soft reset to the 78M6631, the host sends the following:
>Z
The W command acts like a hardware reset. The energy accumulators in XRAM will reset back to zero.
Z Reset
Description: Allows the user to cause soft resets.
Usage: Z Soft reset.
W Simulates watchdog reset.
7.3 Data Access Commands
All the measurement calculations are stored in the data range of the 78M6631. The host requests
measurement information using the data access command which is a right parenthesis
)
To request information, the host sends the data access command, the address (in hex) which is
requested, the format in which the data is desired (Hex or Decimal) and a carriage return. The contents of
the addresses that would be requested by the host are contained in Section 5 .