Pololu A-Star 32U4 Mini SV Booatloader Issue

Robotics and electronics discussion Software and microcontrollers
1

Hi, I am currently doing a project for an electric car that has to move a certain distance as close as possible with the least error as possible. I got the Pololu 6.3:1 Metal Gearmotor 37Dx65L mm 12V with 64 CPR Encoder (Helical Pinion), Pololu VNH5019 Motor Driver Carrier, and the Pololu A-Star 32U4 Mini SV, powered by a 12V power supply. I first verified that the microcontroller worked, and it worked fine, but once I connected everything together, the A-Star stopped working and instead read the following error code in arduino IDE:

Connecting to programmer: .
Found programmer: Id = “CATERIN”; type = S
Software Version = 1.0; No Hardware Version given.
Programmer supports auto addr increment.
Programmer supports buffered memory access with buffersize=128 bytes.

Programmer supports the following devices:
Device code: 0x44

I tried doing some troubleshooting on this issue, like trying to upload code while it is in bootloader mode and resetting, and also verifying that I am using the correct cable, but all the tests lead that I have a corrupted bootloader. I was wondering if this is what this error code means, and if it is, how to fix it, and also how to correctly wire together all these components because I assume that is what caused the issue.

Thanks your for help.

2

Hello.

To avoid confusion, please note that our company name is Pololu, not “Polulu.”

That looks like the normal message that the Arduino IDE should print while successfully uploading a program to the A-Star. (By the way, if that is all your Arduino IDE is outputting, I recommend enabling verbose output from your Arduino “Preferences” menu, which is available under “File”.) Is there anything else that suggesting that there is a problem with uploading code?

I suspect the program is uploading how it is supposed to, but maybe the program itself is not behaving as you expected. As a simple test to verify that, could you try uploading the “Blink” example program from the Arduino IDE and let me know if that behaves as expected? (It should cause the yellow LED on the A-Star to repeatedly turn on and off.)

- Patrick

3

Sorry I ended up fixing the previous issue, however, I think I broke the regulator, so I switched over to an Arduino uno that works for the project. After it is fixed, I will switch back to the A-Star