ERROR: E avrftdi_open(706): Error -4 occured: usb() failed

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Hello, I'm new in this forum. I need help, having a problem because I cannot connect my ATMEGA644P to the computer via FTDI. The following error occured:

 

E avrftdi_open(706): Error -4 occured: usb_open() failed  <-------If connected using FTDI c232hm cable

 

Thank you

 

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Hello World

Last Edited: Fri. Dec 15, 2017 - 10:03 PM
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avrdude  -c  c232hm  -p m644p

 Error -4 occured: usb_open() failed

Switch  -c in avrdude is for PROGRAMMER.

c232hm is not a programmer, it is only usb-com cable.