Newbie Posted August 30, 2016 Share Posted August 30, 2016 I have the JTAG-HS1 Rev.A cable, installed the AVR Programmer, connect pins (SCK, MOSI, MISO, /RESET, VCC, GND) of chip Atmel ATMEGA128 to cable. Manually entered the device settings and tried to read the Fuses/Lock Bits. But message prompted Creating SPI communication interface Connecting Entering programming mode Failed in high speed mode, trying low speed mode **Error - Unable to place device into programming mode Is the problem due to cable driver (Device Manager reflects USB Serial Converter A & or the chip? Link to comment Share on other sites More sharing options...
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