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Support > Frequently Asked Questions > How can I reset the baud rate so that I can continue working?

How can I reset the baud rate so that I can continue working?

Question: I have programmed the baud rate at 230400 in the power-on macro. Now I can’t communicate via my embedded system, BMPload, or Hyperterminal. How can I reset the baud rate so that I can continue working?

Answer: The SLCD controller family has an “auto switch” feature that allows it to change the active serial port. You need to connect to an alternate serial port, perform the auto switch, and then disable the power-on macro.

Using the development kit:

  • Connect to the AUX port on the PowerCom4 triangle board using a PC serial port at 115200 baud.
  • Using Hyperterminal or RealTerm or TeraTerm, send 4 “enter” or characters, and you should get a ‘>’ prompt.
  • Issue the command:
*PONMAC 0

  • Power cycle. The main port should now be 115200 baud. If not, to see what it is set at, repeat and issue the command:
baud0

  • On the SLCD43, you can connect to the USB port and do the same as the above.