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: