MDK

  1. Create an RT1170 M4/RT1180 M7 project

    1. For RT1170, copy the cm4 folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_hid_mouse/bm/cm4 to the folder where the example must be enabled.

      In this case, copy the cm4 folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_hid_mouse/bm/cm4 to the bm folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm.

      For RT1180, copy the cm7folder under <install_dir>/boards/evkmimxrt1180/usb_examples/usb_device_hid_mouse/bm/cm7 to the folder where the example must be enabled.

      In this case, copy the cm7 folder under <install_dir>/boards/evkmimxrt1180/usb_examples/usb_device_hid_mouse/bm/cm7 to the bm folder under <install_dir>/boards/evkmimxrt1180/usb_examples/usb_device_msc_disk/bm.

    2. For RT1170, open the mdk folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm4/mdk.

      For RT1180, open the mdk folder under <install_dir>/boards/evkmimxrt1180/usb_examples/usb_device_msc_disk/bm/cm7/mdk.

    3. For RT1170, change the filename dev_hid_mouse_bm_cm4 to dev_msc_disk_bm_cm4 respectively.

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    For RT1180, change the filename *dev\_hid\_mouse\_bm\_cm7* to *dev\_msc\_disk\_bm\_cm7* respectively.

4.  For RT1170, open the *dev\_msc\_disk\_bm\_cm4.uvmpw*, *dev\_msc\_disk\_bm\_cm4.uvoptx, and* *dev\_msc\_disk\_bm\_cm4.uvprojx* files with a text editor, such as notepad, notepad++, sublime or Visual studio code.

    For RT1180, open the *dev\_msc\_disk\_bm\_cm4.uvmpw*, *dev\_msc\_disk\_bm\_cm7.uvoptx, and* *dev\_msc\_disk\_bm\_cm7.uvprojx* files with a text editor, such as notepad, notepad++, sublime or Visual studio code.

5.  For RT1170, search and replace all `dev_hid_mouse_bm_cm4` with `dev_msc_disk_bm_cm4`, and then save the files.

    |![](../images/image14.png)

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    For RT1180, search and replace all `dev_hid_mouse_bm_cm7` with `dev_msc_disk_bm_cm7`, and then save the files.

  1. Rearrange source files

    1. For RT1170, open the cm4 folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm4, and delete all files with the .c and .h extension.

      For RT1180, open the cm7 folder under <install_dir>/boards/evkmimxrt1180/usb_examples/usb_device_msc_disk/bm/cm7, and delete all files with the .c and .h extension.

    2. For RT1170, copy files with the .c and .h extension in the cm7 folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm7 to the cm4 folder under <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm4.

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For RT1180, copy files with the `.c` and `.h` extension in the *cm33* folder under *<install\_dir\>/boards/evkmimxrt1180/usb\_examples/usb\_device\_msc\_disk/bm/cm33* to the *cm7* folder under *<install\_dir\>/boards/evkmimxrt1180/usb\_examples/usb\_device\_msc\_disk/bm/cm7*.

  1. Rearrange project files

    Note: The following steps are described for RT1170. However, these steps are also applicable for RT1180.

    1. Open dev_msc_disk_bm_cm7 and dev_msc_disk_bm_cm4 MDK project respectively. The two workspaces are respectively located in <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm7/mdk and <install_dir>/boards/evkmimxrt1170/usb_examples/usb_device_msc_disk/bm/cm4/ mdk.

    2. Compare the whole project directory, delete groups that are in the cm4 project but not cm7. In the cm4 project, add groups that are in the cm7 project but not cm4.

    3. Compare the two groups with the same name. Delete files that are in the cm4 project but not cm7. Add files that are in the cm7 project but not cm4. In this case,

    • Delete the groups framed in the red box in the cm4 project and add the directories framed in the green box to the cm4 project.

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-   For the `source` group, delete the files in the *source* group in the `cm4` project and add files under *<install\_dir\>boards/evkmimxrt1170/usb\_examples/usb\_device\_msc\_disk/bm/cm4* with the same name as in `cm7` project.

    |![](../images/image16.png)

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-   For the `board` group, add *sdmmc\_config* source files to the *board* group in the `cm4` project.

    |![](../images/image17.png)

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-   For the `drivers` group, delete `fsl_pit` source files in the `cm4` project and add `fsl_usdhc` source files to the `cm4` project.

  1. Adjust project settings

    Note: The following steps are described for RT1170. However, these steps are also applicable for RT1180.

    1. Compare the macro in the project settings by clicking Option -> C/C++. Add a macro that is in the cm7 project but not cm4.

      In this case, add the SD_ENABLED macro to the cm4 project.

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2.  Change the include paths in the project settings, by clicking **Option** \> **C/C++**, according to the changes of project files.

    In this case, delete the paths framed in the red box and add the paths framed in the green box.

    |![](../images/image20.png)

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With all above steps done, the RT1170 M7 project successfully changes to an M4 project and the M4 example USB project is available for downloading and debugging. The RT1180 M33 project successfully changes to an M7 project and the M7 example USB project is downloading and debugging.