AN2511 datasheet(21/43 Pages) STMICROELECTRONICS

21 / 43 page

AN2511

PMBus commands and source code

Doc ID 13286 Rev 2

21/43

3.2

Source code

The source code is attached in the zip file along with the application note. This source code

is organized as shown below.

' Workspace directory

' Debug

' object files, list files, map files, executable files (.elf), hex code

(.s19)

' Sources

' Main.c: Contains main source code. In this file, PMBus interface functions

are

called (refer to section 3.3).

' Main.h: Contains prototype of all functions used in Main.c.

' PMBus.c: Contains functions for PMBus write and read operation. The data

length calculator function and I2C and Alert signal interrupt sub-

routines are also written inside this file.

' PMBus.h: Contains prototype of all functions and enumerated data

types used in PMBus.c.

' SMBus_Master.c: Contains source code for differnet SMBus master

transaction bus protocols.

' SMBus_Master.h: Contains prototype of all functions and enumerated data

types used in SMBus_Master.c.

' st72264g1.h: Contains register mapping for ST72F264G1 device.

' ST7_hr.h: Contains hardware register bit definitions for ST7 MCU

' ST7_Config.h: Contains compiler selection, peripheral register inclusion,

header files inclusion for linking, macros for assembly instructions

and Fcpu Definition.

' interrupt_vector.c: Contains general Interrupt vector table for ST7 devices

Table 39.

MFR_SPECIFIC_01

Command name

MFR_SPECIFIC_01

Command code

D1h

Description

The MFR_SPECIFIC_01 command provides

access control for configuration register writes.

SMBus transaction type

Read byte

Number of data bytes

Table 40.

MFR_SPECIFIC_02

Command name

MFR_SPECIFIC_02

Command code

D2h

Description

The MFR_SPECIFIC_02 is a manufacturer

defined command.

SMBus transaction type

Read byte

Number of data bytes

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