The main objects are an input stream, inStream, an output stream, outStream, and a task, TSK_processing, which uses the function processing().
#Tms320c6713 dsk how to
This module does not explain how to use DSP/BIOS but it will explain what objects are used in this project.
The project is set up using DSP/BIOS, a real time operating systems developed by TI. The signal processing software simply needs to get a buffer from the input stream, process the data, then put the resulting buffer in the output stream. The input data is put into an input stream (input buffer) and the output data is read from an output stream (output buffer).
#Tms320c6713 dsk drivers
Texas Instruments has written some drivers for the McBSP that get data from the AIC23 and write data to the AIC23. The following figure shows a diagram of the software that will be used in this module. TMS320C613 DSK Block Diagram taken from TMS320C6713 DSK Technical Reference Simplified AIC23 CODEC Interface taken from TMS320C6713 DSK Technical Reference DSK6713 Audio Project Framework Each 32-bit word will contain a sample from the left and right channel in that order.
The CODEC is a 16-bit device and will be set up to deliver 16-bit signed 2's complement samples packed into a 32-bit word.
#Tms320c6713 dsk serial
The CODEC interfaces to the DSP through its McBSP serial interface. The AIC23 figure shows a simplified block diagram of the AIC23 and its interfaces. These outputs are accessible on the DSK board. The chip has a mono microphone input, stereo line input, stereo line output and stereo headphone output. On the DSK board there is a TLV320AIC23 (AIC23) 16-bit stereo audio CODEC (coder/decoder). This memory, along with the internal DSP memory, will be where code and data are stored. There are several devices connected to this interface. The DSP is in the center of the block diagram and connects to external memory through the EMIF interface. The heart of the DSK is the TMS320C6713 DSP chip which runs at 225 MHz.
The following figure shows the block diagram of the TMS320C6713 DSK hardware. The files referred to in this module can be found in this ZIP file: DSK6713_audio.zip DSK Hardware
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