DM330022 Microchip Technology, DM330022 Datasheet - Page 29

• Manufacturer Part Number: DM330022
• Description: BOARD DEV DSPICDEM MCSM
• Manufacturer: Microchip Technology
• Series: dsPIC™r

Specifications of DM330022

• Main Purpose: Power Management, Motor Control
• Embedded: *
• Utilized Ic / Part: Stepper Motors
• Primary Attributes: *
• Secondary Attributes: *
• Processor To Be Evaluated: dsPICDEM
• Processor Series: dsPIC DSC
• Interface Type: USB, UART
• Operating Supply Voltage: 15 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

4.1
© 2009 Microchip Technology Inc.
COMMON PROBLEMS
This chapter provides information for troubleshooting problems encountered while
using the dsPICDEM MCSM Development Board.
1. Problem: USB connection in DMCI fail (amber and green LEDs are ON)
FIGURE 4-1:
2. Problem: Switching noise
This condition is accompanied by the following error message:
Solution:
a) Disconnect the USB cable. When disconnected, the green LED turns OFF.
b) Reconnect the USB cable. When reconnected, the amber LED turns OFF,
While using a stepper motor, inductances are being switched on and off
frequently. Switching noise is present and can be seen with an oscilloscope.
Solution: To properly measure a signal, connect a probe to the desired signal
and one to ground and perform a division. The signal that results is what the
dsPIC DSC sees.
Chapter 4. Troubleshooting
and the green LED turns ON.
DMCI CONNECTION FAILURE
DEVELOPMENT BOARD
dsPICDEM™ MCSM
USER’S GUIDE
DS70610A-page 29