EVB-EMC2102 SMSC, EVB-EMC2102 Datasheet - Page 11

• Manufacturer Part Number: EVB-EMC2102
• Description: MCU, MPU & DSP Development Tools Evaluation Board
• Manufacturer: SMSC

Specifications of EVB-EMC2102

• Processor To Be Evaluated: EMC2102
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EVB-EMC2102 User Manual
4 Software Description
4.1
4.2
SMSC EMC2102
ChipMan Overview
Temperature/Fan Speed/Register History Graph
The ChipMan application initially displays the main Help screen, where detailed description of the
application’s features may be found. The Help screens can be displayed at any time by selecting Help
from the menubar. ChipMan enables the user to display temperature readings, set temperature limits,
control fan speed and read/write configuration register values.
To display register names, in the ChipMan window
HMW to expend the left panel menu, and then select register groups.
The register values displayed on the ChipMan window can be automatically updated by selecting
Option -> Autorefresh Registers.
To open a Temperature or Fan Speed or Register History Graph window, simply right click the mouse
over a register’s name to add it to the graph. Using shift key can highlight multiple register names and
right click the mouse to select them together. Another method to open a graph is to select Options ->
Plot Register Data from the menubar, and then the Select Registers to Plot window will pop-up. Add
the registers to the right side window and click OK. Once the graph appears, select Control -> Start
to begin plotting data. The history plot continuously updates the register data reported by the
EMC2102.
Figure 4.1
without running the on-board fan, and then being heated by the “zone” heater, and then being cooled
down by the on-board fan with different speeds.
Figure 4.2
and then 5400 rpm and then 7200 rpm and then dropped to 4800 rpm. The blue line is the TACH
reading values (measured real fan speed).
The response time and overshoot/undershoot in the Fan Speed History Graph will vary depending on
the fan's characteristics and EMC2102's configurations. The results in
on-board fan, with all EMC2102 registers having their power-up default values.
Modifying the EMC2102 fan control parameters (UPDATE and Fan Step) can help to achieve a better
fan speed control. In
from the original setting of 0xCB (UPDATE = 400 ms). It is clear that the overshoot/undershoot is much
smaller. Please refer to EMC2102 datasheet for more details about the fan control parameters.
is a typical Fan Speed History Graph. The fan speed target (black) was set from 4200 rpm
is a typical Temperature History with the external diode (diode 3) starting at room temp
Figure
4.3, register 0x52 (FCONFIG) is changed to 0xCD (UPDATE = 800 ms)
11
(Figure
2.1) click on EMC2102 and then click on
Figure 4.2
are based on the +5V
Revision 1.1 (12-13-06)