DSP TU Firmware Update

These firmware updates can be bootloaded into the DSP TU.

1. Turn off the DSP TU.
2. Open Windows Device Manager
3. Expand the Ports section
4. Turn on the DSP TU while holding down the Mark High button and observe the new COM port that shows up. All the front panel LEDs should be lit indicating the DSP TU is in bootload mode.
5. Set Tera Term to serial and select the above identified COM port.
6. In Tera Term, select Setup - Serial Port and set the speed to 921600. Set Flow Control to XON/XOFF.
7. In Tera Term, select Setup - Terminal and check Local Echo
8. In Tera Term, select File - Send File. Select the hex file to be loaded and hit OK.
9. The front panel LEDs should flash quickly as the new firmware is loaded.

Firmware Versions

• 251017
  1. Adds UsbEcho command. Provides local echo to USB terminal so local echo in the terminal is not required.
  2. Adds UsbBaud command. Sets baud rate for USB terminal. New baud rate takes effect immediately. Tera Term needs to be changed to the new bit rate to continue. Note that text sent to terminal during boot is still at 921600 bps. After initialization, the port is changed to the new bit rate.
  3. Adds BootToModem command. At the end of initialization, the DSP TU goes into modem mode instead of the command line interface. Use ESC to return to the CLI.
  4. Added UsbBaud to display during boot so the speed can be determined.
  5. Added "skip config load". If the Wide Shift button is held down during boot, the saved configuration is not loaded. Instead, the default configuration is loaded (including the UsbBaud.
Remember that a configuration is not saved until SaveConfig is run.