I'm experiencing exactly the same issue.
ronsoul:
There are a few threads on here with the same exact problem. Im sure they will sort out the issues.See this thread:
SAM-BA operation failed - MKRVIDOR4000 - Arduino Forum
I don't think it's an identical topic though... Their problem tends to be more related to a corrupted bootloader, in which case if you click the reset button twice to enter the bootloader mode, nothing shows up in your screen. And the uploading process constantly fails on their chips.
But in my case the uploading only fails occasionally, and I can see the logo in bootloader mode. As mentioned by OP, just all the operations somehow always time out.
And btw, actually if I add
auto version = FPGA.version();
Serial.print("FPGA version: ");
Serial.println(version);
if (!FPGA.ready()) {
Serial.println("Initialization failed!");
while (1) {}
}
... into setup(), it'll just print out "FPGA version: 4294967295", "Initialization failed!" and stop here.