Atmel AT89C51SND1 - Manuals

Overview AT89C51SND1 Reference Design User Guide 2-3 4207A–MP3–11/02 2.1 User Interface The user interface has 4 LEDs and 5 push-buttons: n Play/Pause n Function n Previous - Minus n Next - Plus n ON (Pwr) Figure 2-3. User Interface Overview Each LED may be: n OFF n Flashing (ON during less than 1 s...

Overview AT89C51SND1 Reference Design User Guide 2-4 4207A–MP3–11/02 2.2 Quickstart This procedure allows you to quickly play an MP3 song stored in the mass storage sys-tem. If the mass storage is empty or not formatted, see the following section regardingMP3 upload (“USB Mode”). 1. If the player is...

Overview of Modes AT89C51SND1 Reference Design User Guide 3-6 4207A–MP3–11/02 Section 3 Overview of Modes 3.1 Song Mode This mode will allow users to listen to the MP3 song stored in the embedded mass stor-age system. If the memory is empty, LED n°1 does not blink and there is no music. Ifthere are ...

Overview of Modes AT89C51SND1 Reference Design User Guide 3-7 4207A–MP3–11/02 3.4 Erase Mode When this mode is validated by pressing Play/Pause button, all LEDs are OFF duringthe erasing and reformatting of the full on-board mass storage system. LED n°4 will beON when this operation is performed.

In-System Programming (ISP) AT89C51SND1 Reference Design User Guide 4-8 4207A–MP3–11/02 Section 4 In-System Programming (ISP) 4.1 Using Hardware Conditions Two solder points or short-cuts have to be physically set up on the board in order toenter this mode. This mode must be used when the initial so...