LGT8F328P TEMPLATE

Author: Jake Goodwin Creation Date: 2023

Descripton:

This repo is a project template for working on the LGT8fX series of micro controllers. Specifically the 328p version.

Directory structure:

The directory is broken up into:

• src: where all your source code will live *.c *.cpp etc
• include: This is where the header files for all the source files is.
• build: All object, hex, eep, lls, map and elf files are put into this dir
• Makefile: Handles the building and programming of the controllers.
• Unity: This is for unit testing the project.
• tdd.sh: This script automatically adds dirs and files for unit tesing
• tests: this is where all the actual test dirs and files are put.
• ignored: a place to store unused stuff for the moment.

Building:

To build the project simply use the existing MakeFile in the root dir like so

make -f ./Makefile all

Flashing using an LarduinoISP

make -f ./Makefile flash_lgt8f328p

Useful Tools:

• avrdude 7.0+, versions like 6.3 (2017) won't have support for the mcu
• clangd, LSP server that you can use with vim/emac/anything.
• bear, lets you generate the needed compile_commands.json for clangd.
• vim, do I really have to say this?
• avr-gcc, needed to compile it.

Programmers:

So far I've only tested using the LarduinoISP as you can't flash the lgt8fX chips using the usbasp programmer so far as I know. If you want to make your own deticated programer I would recommend taking another lgt8f328p and then putting the ISP software onto it.

Once that has been done you can solder some multistranded silicone insulated wire along with a 5-pin header and have a nice programming cable. Toss on some heat shrink to protect it and you have a programmer for less than 75 cents.