This is the documentation for the latest (main) development branch. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

I2S Write

Functional Overview

Once this application is launched, it performs the following operations:

  1. Initialize the I2S controller driver

  2. Allocate a buffer of a fixed length

  3. Send data via I2S

  4. Wait for the transmission to complete

Environmental Requirements

  1. The demo uses an EVB board

  2. The default GPIO used is configured in the device table

Compilation and Flashing

Example location: examples/peripheral/i2s

For compilation, flashing, and other operations, please refer to: Quick Start

Running result

Successfully running will output the following logs

D/dt              [0.002] add device iflash
D/ptb             [0.002] partition table base 0xe000
D/ft              [0.002] ft_0 base 0, ft_1 base 1000
D/ft              [0.004] ft init too
D/ft              [0.004] ft init 1
D/main            [0.004] boot reason 0
D/main            [0.004] heap size 273144(266.74KB)
D/main            [0.004] flash size 0x200000(2MB)
D/dt              [0.006] add device i2s
I/I2S DRV         [0.006] clock:160000000, bitrate:256000, mclk:1, mdiv:39, bdiv:625

I/I2S DRV         [0.008] GPIO[07] configured!

I/I2S DRV         [0.008] GPIO[08] configured!

I/I2S DRV         [0.008] GPIO[09] configured!

I/I2S DRV         [0.008] GPIO[10] configured!

I/I2S DRV         [0.008] GPIO[11] configured!

I/I2S DRV         [0.010] Driver i2s was successfully initialized.
I/I2S             [0.140] I2S send 1 pkt done!

I/I2S HAL         [0.140] Stop tx DMA

I/I2S HAL         [0.140] Stop tx DMA

I/I2S DRV         [0.140] I2S driver de-initialized!