Texas Instruments CC3235 SimpleLink Series - Page 408

Peripheral Library APIs for I2S Configuration www.ti.com
408
SWRU543–January 2019
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Inter-Integrated Sound (I2S) Multichannel Audio Serial Port
The following parameters select the slot size:
-I2S_SLOT_SIZE_24 -I2S_SLOT_SIZE_16
The following parameters select the data read/write port:
-I2S_PORT_DMA -I2S_PORT_CPU
Returns:
None
Reference:
#define I2S_SLOT_SIZE_24 0x00B200B4 #define
I2S_SLOT_SIZE_16 0x00700074 #define I2S_PORT_CPU 0x00000008 #define
I2S_PORT_DMA 0x00000000
12.4.2 APIs for Data Access if DMA is Not Used
12.4.2.1 void I2SDataGet (unsigned long ulBase, unsigned long ulDataLine, unsigned long * pulData)
Waits for data from the specified data line.
Parameters:
ulBase — the base address of the I2S module
ulDataLine — one of the valid data lines
pulData — a pointer to the receive data variable
This function gets data from the receive register for the specified data line. If there is no data available,
this function waits until a receive before returning.
Returns:
None
12.4.2.2 long I2SDataGetNonBlocking (unsigned long ulBase, unsigned long ulDataLine, unsigned long
* pulData)
Receives data from the specified data line.
Parameters:
ulBase — the base address of the I2S module
ulDataLine — one of the valid data lines
pulData — a pointer to the receive data variable
This function gets data from the receive register for the specified data line.
Returns:
Returns 0 on success, –1 otherwise.