
Programming the LEDS
59
Programming the LEDS
The CPC5565 includes one user-controlled, bicolor (yellow/green) LED located on the front
panel. See
Figure 2-1, “CPC5565 Front Panel,” on page 19
. The user LED is software
programmable through GPIO bits 24 and 25 of the Intel 3100 GPIO_USE_SEL1 register
(500h). The LED is turned off after a power cycle or a reset.
As shown below, two bits each are used to control the state of the user LED. Since a bicolor
LED is used, there are four states for the LED: yellow, green, both colors off and both colors on.
The GPIO bits that control the user LED's bits are in the same register as other system critical
functions. It is important not to change the state of other bits in this register when modifying the
user LED status. The register address used to change the level of GPIO bits 0 - 31 is 50Ch.
Care should be taken to read a double word from this register and change only bits 24 and 25
to the desired values, then write the double word back out to IO address 50Ch, preserving all
other bits in the double word.
Installing the Display Drivers
The AMD/ATI Radeon E2400 video processor on the CPC5565 requires the installation of the
AMD display drivers and software for the appropriate operating system.
Before proceeding, go to the AMD support Web site to download the most current version of
the display drivers for the appropriate operating system. Driver installation is operating system
dependent and may vary depending on the operating system installed.
To download the display drivers:
1. Go to
http://ati.amd.com/support/driver.html
2. Select the desired operating system in the first column.
3. Select
Embedded
in the second column.
4. Select
E2400
in the third column.
5. Click
Go
.
6. Click the
Download Link
to download the drivers.
Refer to the
Driver Release Notes
and
Installation Instructions
for your operating system at the
AMD support Web site for more information. The following sections describe how to install the
AMD display driver.
S T A T E
Bit
Yellow
Green
Both Off
Both On
Bit 24
0
1
1
0
Bit 25
1
0
1
0
Содержание CPC5565
Страница 4: ...4...
Страница 14: ...Figures 14 Figure 7 1 Battery Socket Locations 106 Figure 7 2 CPC5565 Board Dimensions 107...
Страница 56: ...Chapter 3 Getting Started 56 Figure 3 16 PMC Card Installation Voltage Key Post...
Страница 84: ...Chapter 4 System Monitoring and Alarms 84...
Страница 100: ...Chapter 5 Connectors 100...
Страница 102: ...Chapter 6 Reset 102...
Страница 108: ...Chapter 7 Specifications 108...
Страница 110: ...Chapter 8 Thermal Considerations 110...
Страница 118: ...Chapter 10 Data Sheet Reference 118...