So i changed -U to -F and got: avrdude -p m328p -P COM1 -c avrispv2 -e -F -U lock:w:0x2f:m I changed the settings and got this: avrdude -p m328p -P COM1 -c avrispv2 -e -U -U lock:w:0x2f:mĭouble check connections and try again, or use -F to override Make sure your com setting is for the correct one. Their site also states that it has 2 com ports on it, one for programming, the other for communications. įrom their website LINK you shoud be using avrispv2 as your programmer type. I have a Pololu USB AVR Programmer and i got it here. What programmer do you have, and where did you get it? Ok, I changed the programmer to avrispmkII and now I get this: avrdude -c avrispmkII -p m328p -F -U lock:w:0x2f:mĪvrdude: stk500v2_command(): command failedĪvrdude: stk500v2_command(): unknown status 0xc9Īvrdude: stk500v2_program_enable(): cannot get connection statusĪvrdude: AVR device initialized and ready to accept instructionsĪvrdude: Yikes! Invalid device signature.Īvrdude: Expected signature for ATMEGA328P is 1E 95 0F It was at COM4 at first, but then i changed it to COM1. Using AVR Studio (download from ATmel) it is very easy to program the bootloader to the mcu.
#AVR BOOTLOADER TUTORIAL CODE#
You can also load the foodloader.hex directly without needing to compile the bootloader code (which I have never been able to do).
Is Com1 your actual com port? Check Device Manager to make sure. I made a tutorial for installing the bootloader, if you haven't seen it, it may be of help. That may be why you are getting the error because since you didn't define a com port, avrdude is using a default of com1.
#AVR BOOTLOADER TUTORIAL SERIAL#
I'm not 100% but I believe the AVRISP was a serial programmer. Make sure you have your programmer name correct in your makefile. I have it connected, set it to COM1, and in the Makefile I have AVRDUDEFLAGS= -c avrisp -p m328p, but when i try to make it I get: avrdude -c avrisp -p m328p -U lock:w:0x2f:mĪvrdude: ser_open(): can't open device "com1": The system cannot find the file s
I'm trying to flash the Nerdkits bootloader on a blank Atmega328p chip I got on Sparkfun and having some issues.
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