When reset, windows usb serial driver unloads

Talk about our 40 Pin Dip ARM Cortex M3 / M0 Here

When reset, windows usb serial driver unloads

Postby gbeardall » Fri Feb 14, 2014 1:10 pm

On Windows, when I reset the dipcortex the usb serial driver unloads causing my initial debug printfs to be lost until the driver reloads.
Is there anyway on the dipcortex to detect when the usb serial driver has reloaded so I can wait before outputting my printfs?
Or, is there a way to prevent the driver from unloading?
Thanks
gbeardall
 
Posts: 1
Joined: Fri Feb 14, 2014 1:03 pm

Re: When reset, windows usb serial driver unloads

Postby Carl-SolderSplash » Fri Feb 14, 2014 7:48 pm

Perhaps the best way is to write the code to wait for a character before it begins executing so that you don't miss any of your printf statements.

you can do that by using getc() function with mbed.

like this : pc.getc();

Or alternatively using the serial uart peripheral (Bypassing the on chip USB) with an external serial to USB adapter, FTDI make a lot of these.
User avatar
Carl-SolderSplash
Site Admin
 
Posts: 223
Joined: Sun Mar 17, 2013 11:15 pm


Return to DipCortex M3/M0

Who is online

Users browsing this forum: No registered users and 3 guests

cron