I see the board as an option in the target section. My board still functions and nothing else has been written to it, but I am having many issues writing to it. I am using Mbed studio and have attached a screen shot.
Yes, I totally understand your confusion.
I don’t know how you are familiar with Mbed, but there is a target.json file what is probably the source for this tree.
Probably there is a problem with a missing flag in settings of Arduino NANO 33 BLE. But I am not sure, maybe it’s an intention, that I don’t understand.
This tells you where to locate the SWD and SWCLK pins, which you’ll need in order to flash the Nano 33 BLE board using Mbed Studio with a DAPlink device.
Here it notes the difference, i.e. Arduino IDE’s Upload option is not integrated with the “Mass storage” upload option but is a serial based one.
As such, I’d suggest you use the Arduino IDE to write your Mbed code as it should still compile within the Arduino IDE, or alternatively you can copy and paste your Mbed Studio code into the Arduino IDE in order to compile and upload.
I don’t think you can flash your Arduino directly from Mbed Studio but the easiest way to deploy your Mbed program to your Arduino Nano 33 BLE is explained here.
tl;dr:
Add the following to you mbed_json.app to create a .bin binary of your Mbed program