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1. Using the MSP-GANG GUI software, configure the programmer for all of the settings you are going to want for your programming (which targets are enabled, SBW vs JTAG vs BSL used, programming voltage and how it's supplied, the binary file that you want to load, etc).
2. Once you've tested programming using this configuration and know that it's all set the way you'd like, follow the steps in section 2.1.6 of the MSP-GANG user's guide to create and save the current configuration as an image in the MSP-GANG internal memory (select "Save to image")
3. Now that the image is saved into the MSP-GANG memory, you no longer need the GUI, so close it. Now using a terminal program like Docklight, HyperTerminal, or PuTTY, you should be able to connect to the COM port that the MSP-GANG has enumerated on. See section 3.2 for the default serial communication setup (9600 baud, 1 start bit, 8 data bits, even parity, 1 stop bit). Note that if possible it is best to use the USB interface for the serial communication as it is much faster.
4. Now following the protocol outlined in section 3 (make note of the data frame structure), you can do a sequence of commands like this:
1）SYNC/"Hello" command (required at beginning)
2）Select Baud Rate command (to increase baud rate for faster programming)
3）Select Image (to choose the image that you loaded into the MSP-GANG memory earlier using the GUI, and select it to be used for programming)
4）Main Process (this performs the actual programming according to the image you selected)
5）now you will poll the Get Progress Status command until it indicates that the Main Process is complete (byte 6 will become an ACK instead of In Progress - see user's guide 3.5.2.10). Get Progress Status will also return any errors that were encountered during programming
Instead of using a terminal software to send the commands, you could use any coding environment that allows you to access COM ports, and write a program to send and handle the above commands automatically.
