SmartGPU2-LCD480X320Touch-CommandSet

SMART GPU 2 3.5” TOUCH

Command Set

2.7.1 Initialize/De-initialize DACs/Audio – 49hex - I ascii

Commands (host)

3 bytes

1.- 0x41 (hex), A (ascii). *Audio Command.

2.- 0x49 (hex), I (ascii).

3.- DACs state: OFF 0x00(hex) or

ON 0x01(hex).

Responses (device)

1 byte

1.- 0x4F (hex), O (ascii) – success ACK or

0x46 (hex), F (ascii) – fail NAK.

Description

Command needed to turn ON or turn OFF the audio

DACs outputs (refer to datasheet to learn more about

audio DACs).

This command must always be called prior to any

Audio Command, as this command initializes and

turns ON the entire audio engine.

If no more Audio operations are needed, user can

turn OFF DACs audio outputs to save power.

Default reset or power on state of the Audio DACs

outputs is 0x00(hex) DACs OFF.

Example (sent commands)

Example 1:

<41,49,01> Turn ON audio DACs outputs.

Example 2:

<41,49,00> Turn OFF audio DACs outputs.

All data is in hex.