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32614_1489253935

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Posts posted by 32614_1489253935


  1.  If you are using pre-production CC3200 Launch Pad with XCC3101GZ or XCC3200HZ, the device must not get formatted as secured

    I have read the above line in Uniflash userguide, but I do not know what is XCC3101GZ and XCC3200HZ?

    Plz help me to explain 02 notations.

    Thanks!


  2. Thanks @@Lyon for your recommend, in my case, Board have worked, I can toggle two LEDs on pin PB0 and PB1, But when I config for pin PC4, it can not control, I also to test PC5 (close to PC4), it work perfectly.

    Please give me a explanation, my TM4CGH6PM was shipped from Ti's sample (free). I was doubted about this sample, can I trust in all TI's sample ?


  3. I measure voltage of VCC=3.3, VDDC =1.21 (V), I try to set digital output on pin PC4 and measure V_PC4=0.91 volt,  But when I use TIva LaunchPad V_PC4=3.3 V.

    I hope someone explain for my issue.

    Thanks everyone!


  4. So what is the best way to convert 5v to 3v3 for reading encoder purpose ? I want to read encoder exactly as possible at 3v3. Can I find a IC which can convert 5v analog to 3v3 analog?

    Please give me some solution!

    Thanks in advanced!


  5. Hi everyone,

    I have a motor, its encoder's output 5VDC, I want to convert it to 3v3 VDC to interface with MCU.

    and I know that schmitt trigger will help eliminate noises of encoder, so I want to design a board have both functions above.

    Please give me the way to do this.

    Thanks everyone!


  6. HHi everyone,

    I have made a board with MCU TM4CGH6MPI (TI's sample), with 16 Mhz crystal SMD.

    I have connected Jtag of TIva LaunchPad and board as below:

    TCK -TCK

    TMS-TMS

    TDO-TDO

    TDI-TDI

    GND-GND

    PA0-PA0

    PA1-PA1

     

    The next time, I debugged code but It do not allow, and notify some thing 'Error connecting to the target', 'Error connecting to the target out of freqency'.

    Can I solve my problem? I have spend a large amount of money for this board, please help me!

    Thanks everyone!


  7. Hi everybody,

    I want to make a circuit which using tmp101Q of TI interface with TM4C H6PM, I have read datasheet but I have no idea to draw a schematic for this sensor, someone say that need resistors pull up at SDA and SCL pins, is it right ? Please consider my attached file and give me a key to solve this problem.

    TMP101-circuits.jpg

    Thanks !


  8. Hi every one,
    I have a unclearly trouble in SSI table ( attached file), I do not know about parrameter filled yellow (1 or 2? number). Please help me to explain it.
    Thank you!


  9. Hi everyone,
    I want to use some isolate devices(opto, FET, BJT, Relay) to control (active/deactivate via a pin of microcontroller) a power supply 12V-5A via a pin of microcontroller. Please suggest me a optimizing way to implement my ideas.
    Thanks a lot!


  10. Hi everyone,

    I wanna control a step motor (datasheet :http://www.nidec-servo.com/en/digital/pdf/KH42J.pdf) with Tiva Launchdpad as a controller.

    I used a L298 H bridge (http://arduino-info.wikispaces.com/file/view/MotorDriver2.jpg/219771672/MotorDriver2.jpg) as a driver, using PD0 PD1 PD2 PD3 are 4 inputs of L298 module.
    In datasheet of motor, I recognized that it's have four steps, each step include 4 states correspond with PD0,1,2,3; using digital output for PORTD connected to L298 input.

    I have a question, are my concepts right ?

    I hope someone can explain for me!

    Thanks in advanced!

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