1. Run Tera Term Pro v2.3
You will be greeted by a “TeraTerm: New connection” dialog box. Click cancel, then go to the “Setup” menu and select “Serial port…”.
Configure the settings as shown below, substituting your own COM port. The baud rate should be 115200 with 8-bit data, no parity, one stop bit, and no flow control. You do not need any transmit delays. The only settings you should have to change from their default values are the port and the baud rate. Do not click OK yet.
2. Enter the programmer’s firmware update mode
When you connect your programmer to your computer via the USB cable, you should see both the red and green status LEDs light for approximately seconds. During this time, the programmer is waiting for the proper input sequence that will put it into firmware update mode. The procedure for entering firmware update mode is as follows:
3. Loading the new firmware
From the “File” menu, select “Send file….”
Navigate to the directory that has the .pgm file you wish to upload and select the file. Before you click “Open,” make sure you have checked the binary checkbox option in the lower left part of the window. If you fail to check this box, the upload will fail.
When you click “Open”, you should see periods streaming across your terminal window . Each period represents the successful transmission of a packet. You should also see the red status LED below the reset button flickering as the firmware update progresses. When the upload is complete, the programmer will transmit *SUCCESS to indicate success. If there is a problem, the programmer will transmit either STARTERR or CHKSUMERR, most likely followed by a stream of *'s and a few c's. The most likely cause for such a problem would be the failure to transmit the firmware upgrade file as a file. If repeating the steps in this section again do not lead to a successful firmware update, please see Section 2 for information on how to contact us for support.