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.

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