This page describes the structure of the CSND shared memory.
Type0 Command Structure
| Index Byte
|
Description
|
| 0x0-0x1
|
Offset in shared-memory for the command to process immediately after this one, when not 0xFFFF.
|
| 0x2-0x3
|
CommandID
|
| 0x4-0x7
|
This is initially zero when this command data is written by the user process, once the CSND module finishes processing the command this is set to 0x1.
|
| 0x8-0xB
|
The low 5-bits for this field is the the channel-index. This word is used for command parameters as well.
|
| 0xC-0x1F
|
Command parameters
|
Type0 Commands
Command 0x8
| Index Byte
|
Description
|
| 0x2-0x3
|
CmdID 0x8
|
| 0xC-0xF
|
Value for the audio sampling frequency?
|
This sets the audio sampling frequency?
Command 0xE
| Index Byte
|
Description
|
| 0x2-0x3
|
CmdID 0xE
|
| 0x14-0x17
|
Physical address for the audio data.
|
| 0x1C-0x1F
|
?
|
This sets the physical address of the audio data used when playing sound.