e-peas EDMS105N

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The e-peas EDMS105N are extremely Low-Power Microcontrollers based on Cortex-M0.

Flash Banks

Internal Flash

Flash Bank Base address Size J-Link Support
Main Flash 0x00000000 256 KB YES.png
Info Flash 0x01000000 2 KB YES.png

Watchdog Handling

  • The device has a watchdog WDT.
  • The watchdog is fed during flash programming.

Device Specific Handling

Info Flash

The EDMS105N has a key storage (0x01000000 to 0x0100007F) at the beginning of the Info Flash sector (0x01000000 to 0x010000800) which is NOT readable, only writable.
Any readout of the key storage (0x01000000 to 0x0100007F), will show up 0xFF, instead of the programmed values.

  • User can read the whole Info sector (keys are displayed as 0xFF, even if they are programmed).
  • User can verify the programmed data (when no keys are programmed).
  • When user programs data into the Info Flash sector with keys included, verify has to be switched off, or it will fail.

Reset

  • The devices uses normal Cortex-M reset, no special handling necessary, like described here.

Unsecure

If J-Link detects any write protected flash page (MAINLOCK) or a fully protected device (DBGLOCK) the user is offered a chip erase before connecting to the device. At the moment the INFOLOCK can't be reset.

Evaluation Boards

Example Application

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