Programming a BM23 on a Custom Board

EEPROM Tool ver 2.1.28.4653 identifies the module, however, writing the configuration EEPROM produces the message "Device write EEPROM Fail(byte)!". What should I check?

  • Verify that the configuration and firmware programming modes are entered accordingly to the system configuration I/O pins as shown in "Table 2-1: System Configuration Settings" of the datasheet. You can find the datasheet on the BM23 product page.
  • Verify that the COM port is not opened with another Serial Terminal.
  • When programming, make sure that:
    1. The UART_TXD/ RXD, P20, ADAP_IN and GND pins are connected.
    2. P20 should be on low status.
    3. Measure 5 V on ADAP_IN.

Is the "name frag segment" in the IS20XXS_002 UI v1.00.0 tool freely editable?

Yes, you can edit the name and then make sure to program this setting. The only restriction is the segment length of 32 characters.

What is the password for the MPBT tool?

The password for the MPBT is pass.

© 2018 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.