• State
  • Locked Locked
  • Replies 6 replies
  • Subscribers 30 subscribers
  • Views 789 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Source for an Application Report (SLVA488A)

Ron Beck
Prodigy 30 points
Other Parts Discussed in Thread: DRV8811, BOOST-DRV8711, MSP430G2553, DRV8846EVM, MSP430F2617, DRV8880EVM, DRV8811EVM

I've been looking for a stepper indexer that I can control over I2C.

I read "Intelligent Stepper Motor Driver with DRV8811/18/24/25 (SLVA488A)" and noted all the example code.  When taken together, the examples do not comprise a complete program.  Is the complete project posted somewhere?  I would like to get a copy of the source to load on a MSP430 for a proof-of-concept.

Thank you,

Ron

  • 0
    TI__Guru** 114905 points

    Hi Ron,

    Assuming you would like to use a MSP430G2553, please look at the BOOST-DRV8711 source code. It is available online. ( LINK )

    The code is written to interface with a GUI, so there are parts of it that are not required.

    There are several other similar examples such as the DRV8846EVM and DRV8880EVM. Those use a MSP430F2617.

  • 0 in reply to Rick Duncan
    Prodigy 30 points
    Rick,

    Thanks for the reply.

    I checked the firmware source code for all three of your suggestions. They all use the UART for communications. No help there.

    I was asking about the source that Application Report SLVA488A was based on. It appears to do exactly what I need: a motor controller (step and direction output) that will work on my I2C buss.

    Thanks,
    Ron
  • 0 in reply to Ron Beck
    TI__Guru** 114905 points
    Hi Ron,

    Sorry, we have looked but have not been able to find any I2C code associated with the application report.
  • 0 in reply to Rick Duncan
    Prodigy 30 points

    Rick,

    Jose says that he wrote the AR for the DRV8811/... EVM.  The description for the DRV8811EVM says that it includes "MCU Control Software Source Code."  Is that the firmware that Jose was quoting from?

    The other EVM's that you referred to had the MCU firmware in the zip file along with the installation files for the application.  The .zip linked on the above page for the DRV8811EVM only has the Application setup, without the firmware.  What happened to the firmware?

    Sincerely,

    Ron

  • 0 in reply to Ron Beck
    TI__Guru** 114905 points
    Hi Ron,

    The firmware is placed under the Hardware: DRV8811 EVM zip file. This was done primarily because the code is pre-loaded in the hardware and is provided for reference only. The software zip file contains files needed to operate the EVM and GUI.

    FYI -- the interface from the GUI to the DRV8811EVM is USB to UART. I am not aware of any EVM that uses I2c.
  • 0 in reply to Rick Duncan
    TI__Guru** 114905 points
    Hi Ron,

    Sorry.

    "Jose says that he wrote the AR for the DRV8811/... EVM. The description for the DRV8811EVM says that it includes "MCU Control Software Source Code." Is that the firmware that Jose was quoting from?"

    No, it was not. The code may have been a modified version, but cannot be located.