Vga: Vga Display Connector; Programmable Led And Buzzer For System Diagnosis; Table 2-16: Led And Buzzer Control Register Bit Map - Advantech UNO-2050 User Manual

2.11 VGA: VGA Display Connector

The UNO-2050 provides a VGA controller for a high resolution VGA
interface. It supports VGA and VESA, up to 1280 x 1024 @ 8 bpp and
1024 x 768 @ 16bpp resolution and up to 4 MB share memory. The
VGA interface is reserved for system testing and debugging.
2.12 Programmable LED and Buzzer for
System Diagnosis
In a headless application (an application without monitor display), it is
always a big problem to know the system status. Another PC may be
needed to monitor headless device status via RS-232 or Ethernet. In
order to solve this problem, UNO-2050 offers a programmable LED
indicator and buzzer. Hence, they can be programmed to show a
system's status by LED indicator flickering and buzzer alarm.

Table 2-16: LED and Buzzer control register bit map

Base+10H
Base+11H
LED and Buzzer Control Register
LEDEn: Enable LED flickering
LEDS0 and LEDS1: LED flickering speed setting bit
SPKEn: Enable buzzer alarming
SPKS0 & SPKS1: Buzzer alarming setting bit
R/W
R/W
Chapter 2 Hardware Functionality
LED Control Register
LEDS1 LEDS0 LEDEn
Buzzer Control Register
SPKS1 SPKS0 SPKEn
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