Hey, help. Suddenly I cant progrram my arduino. Why Please help me.Thank you
I do have the same problem,If I upload a sketch by Uspasp from the IDE (v1.0.1), the sketchs work fine.But I can't upload sketches anymore by the arduino ide.I think the bootloader is over writen.Burning a new bootloader, solves the problem.If you upload by extrenal programmer, you erase the flash memory, and then uploud the sketch.(so you loose the bootloader). Is there a option to prevent that ?
ey guys!I am trying a USBasp that I got following the information on this post.first:Tools->Board->Arduino MegaTools->Programmer->USBaspTools->Burn BootloaderIt says "done burning bootloader", but also says "avrdude: warning: cannot set sck period. please check for usbasp firmware update." Arduino´s led start to blinksecond, I try to upload "blink":Tools->Board->Arduino MegaTools->Programmer->USBaspFile->Upload Using ProgrammerIt says "done uploading", and again also says "avrdude: warning: cannot set sck period. please check for usbasp firmware update." There is no blinking in the led, so the sketch is not working.if after this I connect the arduino again via usb and try again to upload "blink" via AVRISP mkII, it gets stuck in the uploading. "avrdude: stk500v2_getsync(): timeout communicating with programmer"if I try to burn bootloader, it says "error while trying to burn bootloader" - "avrdude: usbdev_open(): did not find any USB device "usb" Error while burning bootloader."How can I save my board? I saw that @johnwasser said "Fix the auto-reset and you should get the bootloader to work more than once." but I dont know what that means...
board "must be powered by an external power supply or the USB port." I was also missing that part...
I still cannot upload sketch with the USBasp. After checking that upload via arduino IDE is working normally and that I can restore the bootloader with USBasp, I attempt to upload "blink" via USBasp. What I get still is "done uploading" but no blinking