User Guide
HR1203 Evaluation Kit (EVKT-1203)
HR1203 Evaluation Kit User Guide Rev 1.0
MonolithicPower.com
16
5/7/2019
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3.5 Troubleshooting Tips
Common Faults
Troubleshooting
Communication interface driver is not
properly installed
Manual installation is required. Follow the steps below:
1.
Install the correct “.exe” file according to the Windows operating
system.
32-bit: \EVKT-USBI2C-02 USB
Driver\USBXpressInstaller_x86.exe
64-bit: \EVKT-USBI2C-02 USB
Driver\USBXpressInstaller_x64.exe
2. Connect the communication interface to the PC with a USB
cable.
3.
Find “Cypress EZ-USB Example Device” in the Device
Manager.
Prompt box: “Please connect I
2
C kit to
USB port correctly
”
1. Connection failed. Check and reconnect the communication
interface with USB port.
2. Communication interface or EVB not reset. Detach the
communication interface from the USB port and fully discharge
both the communication interface and EVB VCCs. Ensure the
bulk capacitor is discharged below 10V. Then reconnect.
Prompt box:
“Please check whether kit
connects to EVB correctly
”
1. Connection failed. Check and reconnect the communication
interface with EVB.
2. Communication interface or EVB not reset. Detach the
communication interface from the USB port and fully discharge
both the communication interface and EVB VCCs. Ensure the
bulk capacitor is discharged below 10V. Then reconnect.
Prompt box:
“Open memory failed”
1. Communication failed with the EEPROM of the chip. Something
may be wrong with the EVB or the chip.
2. Communication interface or EVB not reset. Detach the
communication interface from USB port and fully discharge both
the communication interface and EVB VCCs. Ensure the bulk
capacitor is discharged below 10V. Then reconnect.
Prompt box:
“Communication failed”
Communication lost with the EEPROM of the chip.
1. End the GUI process.
2. Reset both the communication interface and EVB.
3. Reconnect the communication interface following the correct
steps.
4.
Restart the GUI.
Displayed as online mode in the GUI
but without AC input
Communication interface or EVB not reset. Detach the
communication interface from the USB port and fully discharge
both the communication interface and EVB VCCs. Ensure the bulk
capacitor is discharged below 10V. Then reconnect.
