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Thread: TLE9201 H Bridge SPI Problem

  1. #1
    Karl
    Guest

    TLE9201 H Bridge SPI Problem

    Hi,

    I am using the TLE9201 H Bridge Chip for driving a small DC Motor. This works well.
    But i also want to use the error messages, which are accessible via the SPI Interface. I have tried a lot, all signals (clock, enable, data_in and VSO) and timings are as asked in the datasheet, but I dŽont get an answer from the chip. ??? Do I have to pay attention to something special ? Is there a known bug ?

    Perhaps somebody has an idea.

    best regards Karl

  2. #2
    Intermediate Intermediate forix is on a distinguished road
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    There is nothing special or a bug with the TLE9201 SPI.

    You will have to check your hardware that it is done like it is shown in the datasheet figure 4 (not figure 5), page 22. The timing of the SPI interface you will find in Figure 4-6 SPI Timing Definition (drawing not to scale). Note: The first SPI response provided after power up is the device revision number (RD_REV). For any unspecified commands the device will respond with the content of the diagnosis register (RD_DIA). You may check afterwards as well the reset value 0x00H of the control register by using the command RD_CTRL 011x xxxx.

    Best regards

  3. #3
    Karl
    Guest

    Tle9201 spi

    Thank you for your reply.

    I solved the problem.

    When programming the SPI, I only supplied VSO and not the main power of the chip. As usual a simple error.

    regards Karl

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