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Altera_Forum
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8 years ago

USB Blaster shows up in device manager under Ports (COM & LPT) as a USB serial port

Hi all! I have a Dell Inspiron laptop running Windows 10, and I have a DE2-70 kit. When I plug in the USB blaster, nothing happens, and I go to the device manager, and it shows up in device man...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Never had problems to program FTDI EEPROM up to now, neither external of the old FT245 or internal of the newer FT232 types. DE2-70 kit has external 9346 EEPROM, may be the chip is defective, missing, has insufficient power supply or RN47 jumper has been removed?

It's not clear yet why the FT245 programming got lost at all. Could it be that the USB input was previously supplied with a high voltage above 5V?