Справочное Руководство для Intermec ck1
Appendix A —
µClinux System
CK1 SDK Programmer’s Reference Manual
333
Character Fonts
The CK1
µClinux provides CK1 with multi-language support capability.
English and Latin languages are supported as built in language fonts. You
can download the simplified Chinese and traditional Chinese fonts to
/home/font folder to support Chinese and later Japanese languages. You
can change the display code page in keyboard setting by the setting
program. Application coders can use the GrSetCodepage to change the
displaying code page of system.
can download the simplified Chinese and traditional Chinese fonts to
/home/font folder to support Chinese and later Japanese languages. You
can change the display code page in keyboard setting by the setting
program. Application coders can use the GrSetCodepage to change the
displaying code page of system.
Power Management on CK1
The CK1 has four modes of power management.
Power Management Modes
Mode
Speed
Description
Normal
66 MHz
CPU operates at full speed. All peripherals are enabled.
Power consumption for CK1 is around 70 mA in active
operation.
operation.
Idle
0 MHz
The CK1 enters this mode when the operating system has
nothing to do. Only the CPU clock is stopped; other functions
are the same as Normal mode.
nothing to do. Only the CPU clock is stopped; other functions
are the same as Normal mode.
Slow
10 MHz
The CK1 enters this mode when the device is not touched for
two seconds when not on cradle.
two seconds when not on cradle.
Power consumption for CK1 is around 45 mA in Slow mode.
Suspend
0 MHz
The CK1 enters this mode when the stop counter times out,
the power key is pressed for three seconds, or the remaining
power is critical. All the clocks are stopped; the SDRAM is in
self-refresh mode. The power key and remote wake up
interrupt are open.
the power key is pressed for three seconds, or the remaining
power is critical. All the clocks are stopped; the SDRAM is in
self-refresh mode. The power key and remote wake up
interrupt are open.
Power consumption for CK1 is under 5 mA in Suspend mode.
Suspend mode may also be referred to as Stop mode or Standby
mode.
mode.
For 1050 mA battery, the CK1 could last for 13 hours during normal
scanning operation.
scanning operation.
The following illustration shows how the CK1 moves through the modes
of power management.
of power management.