Cannot upload to SparkFun Microview through USB serial

[ptillisch]

Hi @cmandris.

@cmandris

The only thing I have found to work is to use the Arduino UNO as an ISP programmer and the connections on the PCB inside the Microview's case. I can use avrdude on the command line as well as using the Arduino IDE "Upload Using a Programmer" function.

When you do that, you erase the bootloader on the Microview. It is expected that attempts to upload via serial using the FTDI module will fail with the "... programmer is not responding ..." errors if the board doesn't have a bootloader.

So if you want to switch back to trying to upload via serial again after performing an "Upload Using Programmer" operation (or the equivalent avrdude command), then you must first connect the ISP programmer to the target and perform a Tools > Burn Bootloader operation on the board to replace the bootloader.