Hi,

I split into a new thread so not to be confused with previous completed questions.

The project will attempt to remember serial ports (for good reason) so the question of what ports are available is only answered by dropping down the ports list?

Selecting native USb means the upload will first look for the current com port then send a message to the board to reboot into programming mode. Once a new COM port has been detected we know the M0 is in programming mode and the upload is attempted. This workflow is common to boards that use native usb and Arduino Leonardo.

Furthermore, sometimes native usb boards get stuck in bootloader mode or can be placed into bootloader mode by double tab the reset button. In this case the different/bootloader COM port will be available for selection in the serial ports list. 

If visual micro doesn't detect a new port as a result of the "bootloader message" it will assume the currently selected port is the bootloader port then perform the upload.

In this case the error suggests your ports list is empty (windows telling visual micro that no COM ports are connected). Is this correct? Is your ports list empty? Is COM3 not available?

I it is true that your pc isn't showing the a COM port for the board then try double tapping the reset and seeing is a COM port appears. If it does then select it, do the upload then a new/different COM port will be available for future use.

Let me know what doesn't make sense. It's not clear from your question if you were aware of the special characteristics of leonardo/nativeusb boards.

Sounds like you need to install usb drivers. Follow the adafruit install guide for your board

Visual micro does what the arduino ide does. So if you get it to work in the arduino ide it should be working in visual micro.

Please let me know if that is not the case.

Thanks

Hi,

Your image shows the serial monitor which correctly might or not be able to open the port depending on the code you have used.

If the monitor is opening after upload then please change the tool bar from Debug to Release

When the monitor is off you will more easily see the Micro Build output which should be showing a successful upload.

I suggest you leave the debug off until you become a little more familiar with the board and upload tools/messages.

Does this make sense or have I missed the point?

Thanks

Can I see your ports list when it is dropped down

Thanks

Does uploading from Arduino ide work?

Double click reset button do the led pulses. Then select the new port that appears in the port list. Then try the upload

IDE still will not upload. I get the same error message I already post.

The board seems to be working becuase my test LEDSs are blinking properly. Just can see the any data in the serial monitor.

Thank you it seems to working now.

What do you think what was wrong. I just want to make sure I do that again.

Could be the bootloader? May be I did some that messed up the bootloader.

Side note IDE is still working. It hangs up. 

Also when I change a be of code to help debug my sketch. it not change the results on the board.
I comment out the bulk of the LOOP() and entered the while loop. hen I up loaded the LED did not blink properly.

The LEDs blink in the old partern!!