rc = -1 error | Microcontroller › AVR › rc = -1 error This topic has 1 reply, 1 voice, and was last updated 10 years, 12 months ago by Mridul Agarwal. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts April 23, 2013 at 8:41 am #4811 Mridul AgarwalParticipant I have got USBTinyISP and a BRICS programmer kit. When I am burning the programme it is saying initilization failed, rc= -1 How can my connections be worng because the board is already soldered. It is a brand new board. I have got Windows 8 so is this creating a problem. May 4, 2013 at 3:47 am #9625 Mridul AgarwalParticipant I solved the problem , it was due to the jumper was missing. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In