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Step 11 Configure (Optional)

If you hear some movement when you run ding.exe, but no ding, then you can try increasing the pulse time that drives the solenoid.  To do this, ding.exe can be used to tune the signal time.  Fire up a command line, navigate to where you are keeping ding.exe, and launch ding.exe with some parameters:

ding.exe 254 50

Will set forebrain to drive the solenoid with a 50ms pulse.  Likewise, ding.exe 254 10 will use a 10ms pulse, and ding.exe 254 99 will use a 99ms pulse.  The maximum pulse duration that can be set is 100ms to avoid drawing too much current from the USB port.  Once you set the pulse duration, it is stored on Forebrain's EEPROM, so it will be remembered until you change it.

You can also tell Forebrain to re-enter programming mode by running ding.exe 255 , on receiving this command, Forebrain will disconnect itself from USB, wait a few seconds, and then reconnect in programming mode.  After you load the firmware, you will want to hit RST, or if you can't reach that, simply unplug and replug the USB cable.