Hardware reference guide

7535 Hardware Reference Guide 31
Chapter 3: The Software
Other Power Transitions
The bootloader performs minimal initialization and waits until it gets a ‘Go’
message back from the peripheral controller, after which it:
10. Fully initializes itself.
11. Writes a message on the terminal screen and the console port.
12. Loads the OS image into RAM.
13. Runs the OS image.
While the Windows CE image is being loaded into RAM, a splash screen is dis-
played on the terminal’s display.
A cold boot can also be triggered by selecting Blue + 0 to get the start menu, then
selecting Shut Down, Cold Reset.
3.2.2.2 Warm Boot
The warm boot is a complete cycle transition from Run to Suspend to Run. When
transitioning from Run to Suspend, all applications are closed, but working RAM is
not cleared and the file system is preserved. A warm boot resumes with working
RAM and a file system, whose contents have been preserved from a previous ses-
sion.
A warm boot can be triggered by selecting Blue + 0 to get the start menu, then
selecting Shut Down, Warm Reset.
3.2.3 Other Power Transitions
3.2.3.1 Suspend
A transition to the Suspend state (stopping the microprocessor) occurs when:
• There is a timeout of the user-input inactivity timer, or
• External power is removed, and the battery is low.
Suspend is the usual state of the terminal when it is ‘turned off’. It can be triggered
by the user in two ways:
• by pressing Blue + 0 to get the start menu, then selecting Shut Down,
Suspend.