STMicroelectronics STEVAL-ISQ006V1 Скачать руководство пользователя страница 25 | Manualshive

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UM0718

Advanced PMBus GUI description

Doc ID 15846 Rev 1

25/31

Figure 26.

Manual command window

Figure 27.

Error in case of no slave address

shows an example of the data writing process through the PMBus.

Figure 28.

Write operation

www.BDTIC.com/ST

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Содержание STEVAL-ISQ006V1

Страница 1: ...Bus communication The objective of this demonstration board is to show the features and capabilities of the PMBus using the ST7 I2 C peripheral to support the standard PMBus commands This demonstratio...

Страница 2: ...monstration board 13 2 2 Identification of PMBus slaves and options configuration 15 2 2 1 Polling the connected slaves 15 2 2 2 Enabling the slave 16 3 Advanced PMBus GUI description 18 3 1 Device se...

Страница 3: ...UM0718 Contents Doc ID 15846 Rev 1 3 31 4 Hardware details 27 4 1 Schematics 27 4 2 BOM list 28 4 3 Physical dimensions 29 5 Revision history 30 www BDTIC com ST...

Страница 4: ...s UM0718 4 31 Doc ID 15846 Rev 1 List of tables Table 1 Connectors 7 Table 2 Switches 7 Table 3 LED indication 8 Table 4 PMBus connector 12 Table 5 BOM list 28 Table 6 Document revision history 30 www...

Страница 5: ...ng the board 14 Figure 12 GUI connected to board 14 Figure 13 Error in connection 15 Figure 14 List of connected slaves 15 Figure 15 Selection of connected slave 16 Figure 16 Error message returned fr...

Страница 6: ...ize 79 mm x 39 mm x 20 mm with a USB connector User friendly graphical user interface GUI to identify the connected PMBus slaves up to four configure control and monitor the connected slaves write rea...

Страница 7: ...tor This modification is performed to achieve the low form factor of the board J8 PMBus The following is the 10 pin PMBus interface connector description Pin 1 Control signal 5 Pin 2 Control signal 4...

Страница 8: ...ing purpose 1 3 Software setup This section explains how to install and set up the PC GUI for PMBus communication 1 3 1 PC GUI installation To install the PC GUI software follow the steps as mentioned...

Страница 9: ...Read the license file and click the Yes button to accept Figure 4 GUI installation step 2 license agreement window Step 3 Select one of the following options in Figure 5 Figure 5 PMBus GUI installatio...

Страница 10: ...ult it installs the software in the following path C Program Files STMicroelectronics Figure 6 PMBus GUI installation step 4 installation path window Step 5 After selecting the folder and clicking the...

Страница 11: ...n the software has installed in the directory selected or in the default directory A shortcut of this software is also available in the START menu as well as on the desktop 1 4 Quick start 1 4 1 Hardw...

Страница 12: ...k on the shortcut of Advanced PMBus Software Application available on the desktop Click on File Connect option or on Connect icon Press the polling button to identify the connected slaves The user can...

Страница 13: ...3 lights up to indicate the MCU is in USB powered state If there is any problem in getting the LED to light up press the reset switch provided in the demonstration board This switch restarts the appli...

Страница 14: ...igure 11 Connecting the board If the demonstration board is connected to the PC GUI it shows Connected in the status bar on the bottom right hand of the GUI screen and the device selection window appe...

Страница 15: ...nnecting the interface board the GUI should poll the bus to identify the connected slaves In the polling procedure the GUI scans the entire slave address range except 0x18 which is the alert response...

Страница 16: ...device 2 2 2 Enabling the slave Figure 15 Selection of connected slave If the user clicks on the parameters without selecting the slave an error message appears on the screen and it may cause undesir...

Страница 17: ...e GUI Doc ID 15846 Rev 1 17 31 Figure 16 Error message returned from the slave device After selecting the slave the bus setting and memory buttons are available Now any of the windows can be selected...

Страница 18: ...s soon as the demonstration board is connected the user must perform polling to identify the connected PMBus slave devices After polling the bus the GUI shows the list of connected slaves which can be...

Страница 19: ...emory are overwritten by the values read from the non volatile memory Any item in the user store not having a matching location in the operating memory is simply ignored Note The user must confirm the...

Страница 20: ...If there is still a fault present shown in the GUI the user must resolve the problem Figure 20 Status section 3 1 4 Monitoring section In this section the current and voltage related parameters are r...

Страница 21: ...Figure 22 Device setup window At the time of opening the window all the parameters are read from the device and they can then be increased or decreased by the user Here the resolution for voltage rela...

Страница 22: ...fied by increasing decreasing or by checking un checking the boxes Figure 23 Loop comp window 3 4 Fault management window The fault management window can be opened by either clicking on the fault mana...

Страница 23: ...please refer to the relevant datasheets for PMBus products e g Point of load POL converters which act as PMBus slaves The PMBus section shows the PMBus spec revision supported by the slave 3 6 Device...

Страница 24: ...fication The read write button allows the user to read write the command accordingly The command description field describes the command and is read only In the case of an unsupported command it shows...

Страница 25: ...escription Doc ID 15846 Rev 1 25 31 Figure 26 Manual command window Figure 27 Error in case of no slave address Figure 28 shows an example of the data writing process through the PMBus Figure 28 Write...

Страница 26: ...t respond within the time limit mentioned in PMBus 1 1 specs the GUI then shows the error message Time Out Error Figure 29 Time out error message 3 8 Advanced setup window The advanced setup window ca...

Страница 27: ...32 17 73 7 67 32 17 5 5 S S 6XSSO 6HOHFFW 6ZLWFK 6XSSO 6HOHFFW 6ZLWFK 5 5 7 0 7 0 X X Q Q Q Q Q Q 5 5 5 5 8 67 B76623B 3 8 67 B76623B 3 2 29 29 29 29 29 29 29 29 1 9 9 29 29 29 29 29 29 29 29 X X Q Q...

Страница 28: ...10 Any C11 2 2 F SMD 1206 Any C15 1 F SMD 1206 Any D2 LED1 Green LED 3 mm Any D3 LED2 Yellow LED 3 mm Any D4 D5 STPS1L30A DO 214AC STMicroelectronics STPS1L30A D6 1N4148 DO 35 Fairchild J3 ICC SIP 6 A...

Страница 29: ...UM0718 Hardware details Doc ID 15846 Rev 1 29 31 4 3 Physical dimensions Figure 32 Top layer Figure 33 Bottom layer www BDTIC com ST...

Страница 30: ...Revision history UM0718 30 31 Doc ID 15846 Rev 1 5 Revision history Table 6 Document revision history Date Revision Changes 17 Nov 2010 1 First issue www BDTIC com ST...

Страница 31: ...OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRES...

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