Texas Instruments BOOST-PSEMTHR-007 User Manual Download Page 16 | Manualshive

Page: 16 / 38

Texas Instruments BOOST-PSEMTHR-007 User Manual Download Page 16

Initialize

MSP430

(GPIO, I2C,UART)

Set ports to Auto mode

Configure interrupts

Enable DC Disconnect

Start

Every 10

seconds

Print input voltage, temp, and port

telemetry via UART

(QDEOH DOO SRUWV¶ GHWHFWLRQ

&

classification

Load SRAM Code

Power off all ports

Configure 2 pair/4 pair mode for

each RJ45 port

TPS23881EVM GUI Setup

16

SLVUBP0A – May 2019 – Revised August 2019

Submit Documentation Feedback

Copyright © 2019, Texas Instruments Incorporated

TPS23881EVM: PoE, PSE, TPS23881 Evaluation Module

5.4.2

Auto Mode

Auto mode operation is demonstrated in the MSP430 reference code and

shows the flow chart.

Basically, after configuration, the TPS23881 handles port detection, classification, turn on, and faults by
itself and there is no control needed from the host.

Figure 10. Auto Mode System Software Structure

«
...
14
15
16
17
18
...
»

Summary of Contents for BOOST-PSEMTHR-007

Page 1: ...81EVM GUI Load Firmware 1 10 5 TPS23881EVM GUI Load Firmware 2 10 6 Device Configuration and Port Telemetry Page 11 7 Register Map 12 8 Program Started 13 9 Terminal Response With Connected Ports 14 1...

Page 2: ...000BASE T gigabit Ethernet data pass through Two IEEE802 3bt 4 pair ports with 1000BASE T gigabit Ethernet data pass through Single DC power supply input Onboard 3 3 V regulator Onboard I2 C interface...

Page 3: ...CAUTION Do not use USB2ANY and LaunchPad simultaneously Table 1 TPS23881EVM Voltage Rail Current Requirements VOLTAGE RAIL TYPICAL mA MAXIMUM mA 3 3 V_USB 2 5 3 3 3 V 6 12 VPWR Miscellaneous 35 57 VP...

Page 4: ...provide an interface with the MSP EXP430FR5969 when using a PC to develop custom system software 2 4 Basic Test Setup Using USB2ANY for I2 C Interface Auto Mode or Semi Auto Mode Operation with I2 C...

Page 5: ...pyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module 2 5 Advanced Test Setup Using MSP EX430FR5969 LaunchPad The LaunchPad not included running a custom software...

Page 6: ...ir port 1 power and data J23 J23 Two pair port 2 data only J20 2 Pair Port 2 Two pair port 2 power and data J11 J11 Two pair port 3 data only J8 2 Pair Port 3 Two pair port 3 power and data J10 J10 Tw...

Page 7: ...ard TPS23881EVM 008 TP2 RED 2P4D Two pair port 4 DRAIN TP3 WHT 2P4G Two pair port 4 GATE TP4 WHT 4P1AG Four pair port 1A GATE TP5 RED 4P1AD Four pair port 1A DRAIN TP7 WHT 4P1BG Four pair port 1B GATE...

Page 8: ...ESULTING REGISTER CONFIGURATIONS Register 0x12h Register 0x14h Register 0x29h Open Floating Disabled 0x00h 0x00h 0x00h 124 k 2 pair 15 W 0xFFh 0xFFh 0x00h 62 k 2 pair 30 W 0xFFh 0xFFh 0x33h 35 7 k 4 p...

Page 9: ...tails The address can be programed through the A1 to A4 pins and the I2C address setting in the GUI needs to match the hardware configuration See the Pin Status Register section of the data sheet for...

Page 10: ...UBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 4 TPS23881EVM GUI Load Firmware 1 F...

Page 11: ...nfigurations configuring ports in Semi Auto mode enabling OSS power policing and DC disconnect Clicking the SET ALL PORTS TO AUTO MODE button enables Auto Mode for all ports The status of each port is...

Page 12: ...VM GUI Setup www ti com 12 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 7 Reg...

Page 13: ...the project CCS version 7 2 0 is used in the following examples Note that a terminal program such as HyperTerminal or Teraterm is required to view the output from the EVM when it is running 5 3 1 Basi...

Page 14: ...rated TPS23881EVM PoE PSE TPS23881 Evaluation Module 10 The TPS23881EVM is now waiting for a PD load to be installed As ports are installed the system automatically detects classifies and powers up th...

Page 15: ...other is focused on multi port power management applications The reference code for multi port power management applications will be discussed in detail since it has more flexibility and complexity Th...

Page 16: ...EVM GUI Setup www ti com 16 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module 5 4 2 Auto...

Page 17: ...sed August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module 5 4 3 Semi Auto Mode Operation the semi auto mode reference c...

Page 18: ...d Layer Plots www ti com 18 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 12 B...

Page 19: ...PSE_N7 PSE_N8 Port8 7_Data2_N VPWR PSE_N7 PSE_N8 2 3 4 1 5 6 7 8 J12 Port8 7 Data GND J25 P6 J26 P5 22V D11 22V D8 PSE_N5 PSE_N6 Port6 5_Data2_N Port6 5_Data3_P Port6 5_Data3_N Port6 5_Data4_P Port6 5...

Page 20: ...2 3 5 6 Q6 PSE_D1 PSE_D2 PSE_D3 PSE_D4 PSE_D5 PSE_D6 PSE_D7 PSE_D8 CH1_SEN CH2_SEN CH3_SEN CH4_SEN CH5_SEN CH6_SEN CH7_SEN CH8_SEN CH1_GATE CH2_GATE CH3_GATE CH4_GATE CH5_GATE CH6_GATE CH7_GATE CH8_G...

Page 21: ...at pin 1 VDD 6 2 2 Port Current Kelvin Sensing KSENSA is shared between SEN1 and SEN2 while KSENSB is shared between SEN3 and SEN4 In order to optimize the accuracy of the measurement the PCB layout...

Page 22: ...nd Layer Plots www ti com 22 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 16...

Page 23: ...Assembly and Layer Plots 23 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 17...

Page 24: ...nd Layer Plots www ti com 24 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 18...

Page 25: ...ssembly and Layer Plots 25 SLVUBP0A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 19 BO...

Page 26: ...st 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 20 TPS23881EVM 008 Daughterboard Top Side Assembly Figure 21 T...

Page 27: ...vised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS23881EVM PoE PSE TPS23881 Evaluation Module Figure 23 TPS23881EVM 008 Daughterboard Bottom Side Assembl...

Page 28: ...r TOPLED with lens LT E63C CADB 35 1 Z OSRAM 150141GS73100 Wurth Elektronik D2 1 58 V Diode TVS Uni 58 V 1500 W SMC SMC SMCJ58A 13 F Diodes Inc D3 1 Green LED Green SMD 1 6x0 8x0 8 mm LTST C190KGKT Li...

Page 29: ...1 W 0603 0603 CRCW0603340RFKEA Vishay Dale R14 R15 R16 R17 R19 R20 R21 R22 8 35 7 k RES 35 7 k 1 0 25 W 1206 1206 CRCW120635K7FKEA Vishay Dale R18 1 200 k RES 200 k 1 0 1 W 0603 0603 CRCW0603200KFKEA...

Page 30: ...J58A 13 F Diodes Inc J1 J2 2 Header 100 mil 10x1 Gold TH 10x1 Header TSW 110 07 G S Samtec J3 1 Header 100 mil 12x1 Gold TH 12x1 Header TSW 112 07 G S Samtec J4 1 Header 100 mil 4x2 Gold TH 4x2 Header...

Page 31: ...0805 ERJ 6ENF7681V Panasonic SH J1 SH J2 SH J3 SH J4 4 1x2 Shunt 100 mil Flash Gold Black Closed Top 100mil Shunt SPC02SYAN Sullins Connector Solutions TP1 1 Test Point Multipurpose Black TH Black Mul...

Page 32: ...on History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original May 2019 to A Revision Page Changed the document status f...

Page 33: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 34: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 35: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 36: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 37: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 38: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

Reviews:

No comments