blue_z wrote:Your misuse of jargon makes your explanation unclear.
OK to be much clearer:
1) USB CDC device installed
2) Windows takes some time to "install"
the driver software...
3) Device successfully "installed" - WINDOWS popups dialog saying "device successfully installed"
4)Open SAM-BA - No COM port connections available in its "Select connections" option ; JTAG connection is available though
blue_z wrote:How did you arrive at the conclusion that the "device successfully installed"?
COM ports do not "open" themselves, so it's unclear what you mean.
You do not mention what OS version you're using nor version of SAM-BA, nor any details about this "COM3". From what I've seen, Windows typically reserves the first four COM numbers for UARTs at the legacy I/O port addresses, and other UARTs (e.g. on PCI bus) and USB serial devices are typically assigned higher numbers.
OS is Windows 7, SAM-BA v2.13
First off, I appreciate the explanation on which COM port Windows will port the number to. I was switching it from COM17 to COM3 originally because I just didn't like the higher number but I understand now why the port number is so high.
Second, the COM port has the usual details... Baud rate 115200, 1 stop bit, no parity bit, and 8 bits.
Third, I know the device is successfully installed because of my Windows machine popups a dialog saying "device successfully installed". I assume this means the host has successfully attached the USB device and its descriptors.
blue_z wrote:Regardless, you may be chasing a rainbow.
The SAM-BA utility will expect to communicate with the SAM-BA monitor (or a program that responds to that command set) on your target board.
I've read the SAM-BA documentation and it says you can use JTAG or USB CDC to connect a device to download firmware. Unless I'm mistaken?? I'm using a SAM3U-EK dev board but after reading the documentation I would've thought it was possible? However, I'm gonna have to read it again just to be clearer on the subject.
blue_z wrote:And finally you revert to a brief negative summation.
Yes I will admit I'm not very knowledgeable in this COM port CDC class stuff... that's why I asked online. Obviously I don't know what to really state and that's why I'm not being super clear about all the details. You can just tell me what I need to state/what info you need to help out. I really don't think I'm saying "It's not working!!! omg"... it's just a matter of not knowing what details to give out. And yea I'll admit when giving some of the details out I'm not super clear on it either. Thanks for helping me understand what information I need to give out to detail this problem.