Texas Instruments DRV8818EVM User Manual Download Page 5 | Manualshive

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Texas Instruments DRV8818EVM User Manual Download Page 5

Windows Application

Rsense shows the default of 100. If any modifications are made to the EVM, be sure to change these
fields so that current is properly regulated.

3.3

Operating the GUI

5

SLVU681 – February 2012

DRV8818EVM Evaluation Module

Submit Documentation Feedback

Copyright © 2012, Texas Instruments Incorporated

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Summary of Contents for DRV8818EVM

Page 1: ...ftware 3 2 1 Installing FTDI USB Driver 3 2 2 Installing DRV8818EVM Windows Application Software 3 2 3 Running Windows Application Software 3 3 Windows Application 4 3 1 Connecting the EVM 4 3 2 Initial Configuration 4 3 3 Operating the GUI 5 4 Schematic and Bill of Materials 9 4 1 Schematics 9 4 2 Bill of Materials 11 List of Figures 1 Schematic 1 of 2 9 2 Schematic 2 of 2 10 Windows is a tradema...

Page 2: ...all signals for a complete evaluation 1 2 Power Connectors The DRV8818EVM uses a combination of terminal blocks and test clips for the application and monitoring of power The only power rail that the user must supply is VM for the device s power stage VDD for logic levels is internally generated from the USB connection Users must apply VM 8 V to 35 V according to data sheet recommended parameters ...

Page 3: ...l connectivity to the device s output terminals The recommended way however is to use the header or terminal block because the test stakes traces are of low current handling capability 2 Installing Drivers And Software 2 1 Installing FTDI USB Driver Download the DRV8818EVM Software and Development package from the TI Web site in the DRV8818EVM Evaluation Module product folder Find and unzip Step 1...

Page 4: ...RV8818 Control Signals Stepper Motor control for start and stop and speed and current and decay control through the MSP430 DACs 3 1 Connecting the EVM The GUI auto detects the port to which the USB has connected on connection of the USB cable between the EVM and an available port on your PC This is displayed in the window Click the Connect button If this does not work possible sources of error are...

Page 5: ...0 If any modifications are made to the EVM be sure to change these fields so that current is properly regulated 3 3 Operating the GUI 5 SLVU681 February 2012 DRV8818EVM Evaluation Module Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Page 6: ... indicates it is logic high 3 3 2 Basic Configuration and Control Buttons Whereas clicking the individual pins changes the state of the pins you can also use the control boxes at the bottom to change the state of the pins For example click on the Full Step radio button in the bottom right corner of the highlighted box What happens to the picture on the top 6 DRV8818EVM Evaluation Module SLVU681 Fe...

Page 7: ...s it corresponds to the voltage applied on the DECAY pin For example a voltage less than 0 7 V fixes the device in a Fast decay mode A voltage greater than 2 V puts the device in a Slow decay more A voltage between 0 7 V and 2 V selects a mixed decay with a ratio of fast decay followed by slow decay depending on the voltage set between 0 7 V and 2 V This is easier to see on an oscilloscope capture...

Page 8: ...Desired Speed field and nothing will happen until you click Update Speed Indexing Mode of Steps In Full Step mode this is the number of mechanical steps you want to take For example if the motor on your bench has 200 steps in a revolution and you want to move one revolution you choose 200 steps If you are in 1 2 step mode you need to double this to 400 for a full revolution Steps To Stop When the ...

Page 9: ...3 ISENB 1 4 VMB 1 5 SRn 1 6 RESETn 1 7 BOUT2 1 8 STEP 19 VGD 2 0 GND 2 1 VCP 2 2 CP1 2 3 CP2 2 4 AOUT2 2 5 ENABLEn 2 6 SLEEPn 2 7 VMA 2 8 TP 0 U1 D RV8818 1 000 pf C12 D2MBRS360 D6MBRS360 D3MBRS360 D7MBRS360 D4MBRS360 D8MBRS360 D5MBRS360 D9 M BRS360 JP2 JP3 JP4 JP5 AOUT1 AOUT2 B OUT1 B OUT2 VM VM VM VM DRV8818 1 2 3 4 J3 0 1uF C2 1 TP27 GND GND 1 TP28 GND GND 1 TP26 GND GND 1 TP29 GND GND 5K R 6 G...

Page 10: ...P3 2 SOMI0 30 P3 5 URXD0 33 P4 0 TB0 36 P4 3 TB3 39 P4 7 TBCLK 43 P5 3 UCLK1 47 P5 6 ACLK 50 X T2IN 53 TMS 56 RST NMI 58 P6 1 A1 60 DVSS 63 P5 0 S TE1 44 DVCC 1 P6 7 A7 DAC1 SVSIN 6 XIN 8 VREF VeREF 11 P1 2 TA1 14 P1 5 T A0 17 P2 0 ACLK 20 P2 3 CA0 TA1 23 P2 6 ADC12CLK DMA E0 26 P3 1 SIMO0 SDA 29 P3 4 UTXD0 32 P3 6 UTXD1 34 P4 2 TB2 38 P4 5 TB5 41 P5 2 SOMI1 46 P5 5 SMCLK 49 X T2OUT 52 TDI TCLK 55...

Page 11: ...in Dual row Right Angle Sullins PBC07DAAN 1 J6 9 Pos Header Control Sullins Connector Solutions PBC09SAAN 1 JMP1 3 Pos Header Single Line 3 Pos 100 mil pitch Header Connector Sullins PBC03SAAN 2 JP1 JP6 3 Pos Header Single Line 3 Pos 100 mil pitch Header Connector Sullins PBC03SAAN DNI JP2 JP3 JP4 JP5 2 Pos Header Single Line 2 Pos 100 mil pitch Header Connector Sullins PBC02SAAN 1 JP14 0 230 5 84...

Page 12: ...Point Kobiconn 151 103 RC TP29 2 TP24 TP25 Test Stake Red Glass Beaded Test Point Kobiconn 151 107 RC 1 U1 Driver Bipolar Stepper Motor Driver With Indexer Texas Instruments DRV8818PWP 1 U2 USB Driver USB Chip FTDI 604 00043 1 U3 MSP430 MCU MSp430 Microcontroller Texas Instruments MSP430F2617TPMR 1 U4 LDO 750 mA LDO 8 SOIC Texas Instruments TPS77701D 1 Y1 Crystal Crystal Oscillator ECS Inc ECS 80 ...

Page 13: ...ency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required t...

Page 14: ...o interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna t...

Page 15: ...r you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shin...

Page 16: ... property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Plea...

Page 17: ...ency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required t...

Page 18: ... its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this l...

Page 19: ...er you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shi...

Page 20: ... property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Plea...

Page 21: ...regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures monitor failures and their consequence...

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