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Setup

6.

Click

Read All

. When the micro-USB cable is attached to the PC, the GUI looks like

. Notice

the change in register 0x0A, where the SDP bit has gone high after detection.

Figure 7. TSU6721EVM GUI Showing SDP Charger Detection

7. Disconnect the micro-USB cable from the PC.

8. The TSU6721EVM GUI can write to each register specified as

Read/Write

in the TSU6721 datasheet.

Click on register 0x02, bit 2 (Manual SW). The box turns grey, which means that 0x02 bit 2 has been
set to 0.

12

TSU6721EVM Micro-USB Switch Evaluation Module

SLVUA77 – May 2014

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Copyright © 2014, Texas Instruments Incorporated

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Содержание TSU6721EVM

Страница 1: ...ing the TSU6721 Micro USB Switch EVM 9 4 Schematic 15 5 Board Layout 16 6 Bill of Materials 20 List of Figures 1 TSU6721EVM 3 2 Proper Jumper Configuration on the LaunchPad 5 3 Proper Orientation for...

Страница 2: ...Required for Operation The following items are required to use the TSU6721EVM TSU6721EVM TSU6721 datasheet SCDS338 from www ti com Two power supplies for VBAT and VDDIO 3 3 V at 100 mA recommended for...

Страница 3: ...s on the TSU6721EVM installation of the firmware on the MSP430 LaunchPad installation of the software GUI on the computer and getting started using the TSU6721EVM 3 1 Header and Jumper Connection Desc...

Страница 4: ...J11 is for the DM_HT pin lines Test point J16 is for the IDBP pin lines Test point J28 is for the OUT pin lines indicated as VBUS_HT on the board 3 1 8 J19 J23 and J26 Non USB Host Side Output Test Po...

Страница 5: ...rovided to use the TSU6721EVM in conjunction with the LaunchPad 1 With the LaunchPad unplugged configure the headers on the LaunchPad to be in HW UART mode by attaching jumpers on the headers indicate...

Страница 6: ...ad 3 The following jumper configurations on the TSU6721EVM are required for power to be supplied from the LaunchPad a J2 3V3 to VBAT b J4 3V3 to VDDIO 4 Download the firmware for the MSP430 and graphi...

Страница 7: ...ton in the Browse my computer for driver software dialog box 10 Select the folder where you extracted TSU6721EVM_Software zip 11 Click the Next button Click Close after you see the following image 12...

Страница 8: ...t 14 Close the window by pressing any key 3 3 GUI Software Setup 1 Run setup exe located in the TSU6721_GUI folder From now on the TSU6721 software is available under the Start menu in Programs Texas...

Страница 9: ...sheet measure the following resistance values to verify that the switches have been closed a DM J14 to TxD J19 b DP J13 to RxD J19 4 Remove the 150 k resistor 5 Attach a micro USB cable from the PC to...

Страница 10: ...3 launch the TSU6721EVM software The screen looks like Figure 5 Figure 5 TSU6721EVM GUI After Connecting the LaunchPad to the Computer 2 Connect a 150 k resistor between ID J17 and GND TP1 TP2 or TP3...

Страница 11: ...ove the 150 k resistor 5 Attach a micro USB cable from the PC to J15 on the TSU6721EVM As most PCs are considered USB Standard Downstream Port SDP or Charging Downstream Port CDP chargers the TSU6721...

Страница 12: ...howing SDP Charger Detection 7 Disconnect the micro USB cable from the PC 8 The TSU6721EVM GUI can write to each register specified as Read Write in the TSU6721 datasheet Click on register 0x02 bit 2...

Страница 13: ...EVM The attachment will not determine the switch status but it will ensure that the TSU6721 does not enter sleep mode allowing manual switching to work properly 9 Connect an ohmmeter between DM J14 an...

Страница 14: ...21 datasheet DP has been connected to DP_HT and DM has been connected to DM_HT While referencing to the specified on resistance values for each signal path in the TSU6721 datasheet measure the followi...

Страница 15: ...1 2 3 J2 A B 1 2 3 J4 ISET BOOT JIG J26 TP1 TP2 TP3 GND GND GND INTB VDDIO 5 4 1 2 3 6 7 8 9 10 J8 5 4 1 2 3 6 7 8 9 10 J9 GND GND VBAT D1 VDDIO A2 VBUS A5 OUT A4 GND E5 DP_HT B1 DM_HT C1 IDBP D2 RxD...

Страница 16: ...e 11 through Figure 14 illustrate the PCB layout drawings for this EVM Figure 11 PCB Layer 1 Top Layer 16 TSU6721EVM Micro USB Switch Evaluation Module SLVUA77 May 2014 Submit Documentation Feedback C...

Страница 17: ...www ti com Board Layout Figure 12 PCB Layer 2 VBUS 17 SLVUA77 May 2014 TSU6721EVM Micro USB Switch Evaluation Module Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated...

Страница 18: ...Board Layout www ti com Figure 13 PCB Layer 3 GND 18 TSU6721EVM Micro USB Switch Evaluation Module SLVUA77 May 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated...

Страница 19: ...www ti com Board Layout Figure 14 PCB Layer 4 Bottom layer 19 SLVUA77 May 2014 TSU6721EVM Micro USB Switch Evaluation Module Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated...

Страница 20: ...in PPTC101LFBN RC Sullins Connector Solutions J10 J11 J13 J14 10 Header TH 100mil 1pos Gold plated 230 mil above Testpoint TSW 101 07 G S Samtec Inc J16 J17 J26 J29 insulator J15 J22 2 Receptacle Micr...

Страница 21: ...dling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its e...

Страница 22: ...his equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Opera...

Страница 23: ...age et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont stri...

Страница 24: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 25: ...275 ISO 9001 7 812 627 14 35 sales st electron ru 198099 19 100 331...

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