Serial Flash Programmer[S550-SFWv3] Operation Manual
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10.
Troubleshooting
10.1.
Mode entry error occurs when programming
The mode entry error occurs while preparing for programming. Following shows how to resolve.
①
Check power voltage
Is the target board power voltage set in the device setting screen “Vcc” label setting value?
*Do not connect external power source if “3.3V” or “5V” is selected in “Vcc Type” list box.
In case the power is supplied from S550-SFWv3, does the consumption current of the target board exceed
200mA?
If exceeding 200mA, use an external power supply for the target board.
②
Check CPU oscillator
Is the frequency of the CPU in the range described in the hardware manual?
③
Check terminal status
Are the CNVSS, EPM terminal values set correctly?
④
Check baudrate
Is the baudrate of the device on the target side in the range described in the hardware manual?
*Try programming with the lower baudrate if the mode entry error is not resolved after
①
,
②
, and
③
operations.
10.2.
Erase error occurs when programming
Erase error occurs when the target ROM area cannot be erased. Following shows how to resolve.
①
Check power voltage
Is the target board power voltage set in the device setting screen “Vcc” label setting value?
②
Check CPU oscillator
Is the frequency of the CPU in the range described in the hardware manual?
10.3.
Program error occurs when programming
Program error occurs when data cannot be written in the ROM area of the device on the target side. Following
shows how to resolve.
①
Check power voltage
Is the target board power voltage set in the device setting screen “Vcc” label setting value?
②
Check CPU oscillator
Is the frequency of the CPU in the range described in the hardware manual?
10.4.
Blank error occurs when programming
Blank error refers to an error that occurs when the ROM area of the device on the target side is not initialized
(0xFF).
10.5.
Verify error occurs when programming
Verify error refers to an error that occurs when the ROM area of the device on the target side does not match the
written value.