Name		Name	Last commit message	Last commit date
parent directory ..
AudioGeneration		AudioGeneration
AudioOutput		AudioOutput
Button		Button
Display		Display
Helper		Helper
LedIndicator		LedIndicator
Logger		Logger
MainMenu		MainMenu
Menu		Menu
Properties		Properties
System		System
UserInput		UserInput
targetConfigs		targetConfigs
.ccsproject		.ccsproject
.cproject		.cproject
.gitignore		.gitignore
.project		.project
BuildConfig.h		BuildConfig.h
README.md		README.md
main.cpp		main.cpp
sawtooth.png		sawtooth.png
sine.png		sine.png
sine_wave.jpg		sine_wave.jpg
square.png		square.png
tm4c123gh6pm.cmd		tm4c123gh6pm.cmd
tm4c123gh6pm_startup_ccs.c		tm4c123gh6pm_startup_ccs.c
vars.ini		vars.ini

README.md

Tiva C TM4C123G LaunchPad Audio and DMA

This project shows you how to use uDMA and DAC to make sound

MCP4921 is connected to SSI1 on TM4C123, running at 44.1kHz x 12b
uDMA transfer data from audio buffer to SSI1, in ping-pong mode
You can play a piece of audio, please check AUDIO_TEST definition
You can generate wave sound with Audio Generator

Hardware

Texas Instruments Tiva C Series TM4C123G LaunchPad
MCP4921 or and any DAC with SPI protocol
USB Cable, of course

Software

Install TI's Code Composer Studio
Install TivaWare for C Series
Include your Tivaware folder into project, you can use the macro TI_TIVAWARE_ROOT in vars.ini
Change the heap size as you want
To use ROM_function() you must define part number of this kit TARGET_IS_TM4C123_RB1
You can flash to the board via CCS or TI's LM Flash Programmer

Licensing

The MIT License applies to this software and its supporting documentation: