hi nkcelectronics:
Thanks for your reply. Yes, it's the same self made board. I use ATmega8 chip.
I really need to improve my soldering skill, just found two short ends
After repairing the board, I reconnect it to parallel port and USB power. The LED will become dim light when connect with parallel port only, and become bright light after connect to USB.
However, I still can't upload the bootloader in the code editor-- the editor's screen will freezing after executed the command, and consumed almost all of the CPU resources.
Then I use DOS command window to run the "burnpara.bat", but get some flash error messages (shown below). What's the message mean?
Thanks a lot!
D:\arduino-0010\hardware\bootloaders\atmega8>burnpara.bat
D:\arduino-0010\hardware\bootloaders\atmega8>REM Before running this for the fir
st time, you'll need to install giveio.
D:\arduino-0010\hardware\bootloaders\atmega8>REM Unzip drivers\giveio.zip, then
run ginstall.bat.
D:\arduino-0010\hardware\bootloaders\atmega8>uisp -dpart=ATmega8 -dprog=dapa -dl
pt=0x378 --wr_lock=0xFF
Atmel AVR ATmega8 is found.
Writing lock bits ...
Reinitializing device
Atmel AVR ATmega8 is found.
Lock Bits set to 0xff
D:\arduino-0010\hardware\bootloaders\atmega8>uisp -dpart=ATmega8 -dprog=dapa -dl
pt=0x378 --wr_fuse_l=0xdf --wr_fuse_h=0xca
Atmel AVR ATmega8 is found.
Fuse Low Byte set to 0xdf
Fuse High Byte set to 0xca
D:\arduino-0010\hardware\bootloaders\atmega8>uisp -dpart=ATmega8 -dprog=dapa -dl
pt=0x378 --erase --upload --verify if=ATMegaBOOT.hex
Atmel AVR ATmega8 is found.
Erasing device ...
Reinitializing device
Atmel AVR ATmega8 is found.
Uploading: flash
Verifying: flash
flash error at address 0x1c40: file=0x0d, mem=0xff
flash error at address 0x1c41: file=0x92, mem=0xff
flash error at address 0x1c42: file=0xa2, mem=0xff
flash error at address 0x1c43: file=0x36, mem=0xff
flash error at address 0x1c44: file=0xb1, mem=0xff
flash error at address 0x1c45: file=0x07, mem=0xff
flash error at address 0x1cc0: file=0x1f, mem=0xff
flash error at address 0x1cc1: file=0x93, mem=0xff
flash error at address 0x1d40: file=0x8d, mem=0xff
flash error at address 0x1d41: file=0xdf, mem=0xff
flash error at address 0x1e40: file=0x81, mem=0xff
flash error at address 0x1e41: file=0x91, mem=0xff
flash error at address 0x1ec0: file=0x0d, mem=0xff
flash error at address 0x1ec1: file=0xd0, mem=0xff
flash error at address 0x1f40: file=0xfa, mem=0xff
flash error at address 0x1f41: file=0xce, mem=0xff
flash error at address 0x1fc0: file=0xe1, mem=0xff
flash error at address 0x1fc1: file=0x99, mem=0xff
D:\arduino-0010\hardware\bootloaders\atmega8>uisp -dpart=ATmega8 -dprog=dapa -dl
pt=0x378 --wr_lock=0xCF
Atmel AVR ATmega8 is found.
Writing lock bits ...
Reinitializing device
Atmel AVR ATmega8 is found.
Lock Bits set to 0xcf