TI MSPM0L

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The TI MSPM0L are Cortex-M0 based low power micro controllers.

Internal Flash

Supported Regions

The internal flash is divided into 3 different regions:

Region name Range (max) Programmable Supported by J-Link
MAIN 0x0000_0000 - 0x0010_0000 YES.png YES.png
NONMAIN 0x41C0_0000 - 0x41C0_0200 YES.png YES.png[1]
FACTORY 0x41C4_0000 - 0x41C4_0080 NO.png NO.png
  1. See NONMAIN

ECC flash

The flash is ECC protected.

  • When programming code with J-Link, the device flash controller is set to automatically program the correct ECC values.
  • Manual ECC programming is currently not supported by J-Link.

Erased value and Blank Check

  • The erased value of the TI MSPM0x devices is non-deterministic. This means that there is no specific erased value for erased flash.
  • The device's flash controller will automatically blank check when erasing.

Therefore, blank check via J-Link Software is disabled.

NONMAIN

The NONMAIN region is supported by J-Link for programming. However, the NONMAIN holds boot configuration data and therefore must be programmed with extreme care:

  • Changes of the NONMAIN region take effect after the next hard reset / power cycle.
  • The device can be locked (non-)permanently by writing NONMAIN.
  • If the CRC of the BCR and/or BSL blocks are not matching the related data, the device is permanently locked.
  • Erasing this region will lead to a non-matching CRC, thus locking the device permanently.
Note:

To prevent unintentional locking of the device, J-Link has special handling when programming the NONMAIN region:

  • Return an error when the user tries to erase the NONMAIN region. Erase will be done implicitly when programming it.
  • Programming will return an error and will neither erase nor program the NONMAIN region in the following cases:
    • The user tries to flash data with invalid CRC values.
    • The user tries to flash less than the full NONMAIN area (0x200 bytes).

Watchdog

The MSPM0L devices have a windowed watchdogs implemented (WWDG). Apparently, the watchdog counter cannot be read directly. For this reason flash programming is only supported for devices where the watchdogs are not running in window mode.
Supported watchdog settings:

  • Disabled
  • Enabled (non-window mode)

Reset

For these devices, the Cortex-M default reset is used.

Evaluation Boards

Example Application