I checked the connections and even placed a new connector on the stepper.
I replaced the stepper.
Can my Rambo be bad?
I am still waiting to adjust voltage and disable the endstop check in firmware but cannot get anywhere with that eeprom issue
![Sad :(](./images/smilies/icon_e_sad.gif)
Do you know of a good source for the ISP programmers?Xenocrates wrote:Or, if you have other arduino's or a desire to get into them, bootloaders can be burned on with standard ISP programmers (20$ for the arduino name brand), or another Arduino board. I believe Ultimachine recommends the standard ATmega bootloader, but I'd have to check.
Eaglezsoar wrote:
Do you know of a good source for the ISP programmers?
Thanks for the great info. I will be purchasing the one from Mouser.Xenocrates wrote:From the a fellow on the video below, the USBtiny doesn't work. Keep in mind that you have to dismount the LCD to get at the pins (usually they are used for the LCD), and make sure you have the proper programmer selected for what you're using. Another thing is that you can use the programmer to upload firmware without a boot-loader at all, so that you can use that extra small bit of memory. Make sure you get a 2560 compatible programmer. The Arduino USB http://www.mouser.com/ProductDetail/Ard ... aQodgyMBqw should be easily able to do it. Check Ultimachine's github for their latest bootloader and instructions, https://github.com/ultimachine/RAMBo/tr ... ootloaders" onclick="window.open(this.href);return false;, which appears to just say to use a standard arduino bootloader.
for the actual programming, check out seemeCNC's video, since that probably explains it better than I can.
[youtube]https://www.youtube.com/watch?v=mC4Pv15Ibco[/youtube]