Several devices issue

[jannden]

I had to add usb_vid, usb_pid to the Embed.toml probably due to the fact, that several devices were found on my Windows PC (a person next to me using Linux had the same problem):

[default.probe]
protocol = "Swd"
usb_vid = "0d28"
usb_pid = "0204"

Here is the error:

PS C:\Users\.....\microbit\src\03-setup> cargo embed --target thumbv7em-none-eabihf
   Compiling semver-parser v0.7.0
    ...
   Compiling rtt-check v0.1.0 (C:\Users\.....\microbit\src\03-setup)
      Config default
      Target C:\Users\.....\microbit\target\thumbv7em-none-eabihf\debug\rtt-check
       Error The following devices were found:
              [0]: BBC micro:bit CMSIS-DAP -- 0d28:0204:9906360200052820E521F0BA07F91E12000000006E052820 (CMSIS-DAP)
             [1]: CMSIS-DAP v1 -- 0d28:0204:9906360200052820e521f0ba07f91e12000000006e052820 (CMSIS-DAP)
              Use '--probe VID:PID'
              You can also set the [default.probe] config attribute (in your Embed.toml) to select which probe to use. For usage examples see https://github.com/probe-rs/probe-rs/blob/master/probe-rs-tools/src/bin/probe-rs/cmd/cargo_embed/config/default.toml .

[BartMassey]

Interesting. Thanks much for the report! What is the other device that is showing up here?

Anyhow, we can add a note to the book. If you want to do a PR, it would be welcome. Otherwise I'll get it in a bit.