Difference between revisions of "Component: I2S Master/Slave ESP32 (Comms: Interface)"
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Latest revision as of 17:18, 9 November 2022
| Author | Matrix TSL |
| Version | 2.0 |
| Category | Comms: Interface |
Contents
I2S Master/Slave ESP32 component
Provides access to the onboard inter-IC sound (I2S) peripheras allowing for simple digital audio input and output.
Component Pack
FREE
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Downloadable macro reference
|
Stop |
| Stops the I2S audio stream | |
 - VOID
|
Return |
|
|
Read |
| Wait timeout ticks to receive length number of samples, returns samples received. 24 and 32-bit data must be split into two integer values per sample. | |
 - INT
|
Data |
| Data array to populate with incoming data | |
 - UINT
|
Length |
| Max number of samples to try and receive | |
| - UINT
|
Timeout |
| Max number of ticks to wait for incoming samples | |
| - UINT
|
Return |
|
|
CheckQueue |
| Checks the I2S Event queue for a DMA Buffer full or empty event. For an output returns true when there is an empty DMA buffer available. For an input return true when there is a full DMA buffer available. | |
 - BOOL
|
Return |
|
|
Write |
| Wait timeout ticks to send length number of samples, returns samples sent 24 and 32-bit data must be split into two integer values per sample. | |
| - INT
|
Data |
| Data array containing outgoing data | |
| - UINT
|
Length |
| Max number of samples to try and send | |
| - UINT
|
Timeout |
| Max number of ticks to wait for space in the outgoing buffer | |
| - UINT
|
Return |
|
|
Start |
| Starts the I2S audio stream, auto started by the initialise function. | |
| - VOID
|
Return |
|
|
Initialise |
| Configures the I2C peripheral ready for data. | |
| - VOID
|
Return |
Property reference
|
Properties |
|
Channel |
| DAC Channel number | |
|
Clock Pin |
| I2S Clock Pin | |
|
|
Serial Data Pin |
| I2S Serial Data (SD) Pin | |
|
|
Word Select Pin |
| I2S Word Select (WS) Pin | |
|
|
Mode |
| Configures if the I2S peripheral is a master or slave on the bus. | |
|
|
Data Direction |
| Controls if the I2S data is coming in or out of the microcontroller | |
|
|
Audio Channels |
| Number of distinct audio channels in the data stream | |
|
Sample Rate |
| Audio sample rate in Hz | |
|
|
Data Bits |
| Nmber of bits in each audio sample | |
|
|
DMA Buffer Count |
| I2S DMA Buffer Count | |
|
|
DMA Buffer Size |
| I2S DMA Buffer Size | |
|
Simulation |
