[coreboot] USB debug cables and emulation

bari bari at onelabs.com
Tue Jul 8 15:31:12 CEST 2008

Joseph Smith wrote:
> Great. I am going to be on vacation next week. I am about half way through
> reading the USB 2.0 specification (http://www.usb.org/developers/docs/), and
> I will try to finish by next week and dive right in when I get back :-)
Take a look at the microchip PIC devices as an inexpensive alternative 
for a USB debug device. PIC24FJ128 series is ~$5 and should do the job.


They give you all the source to a USB stack and the device supports 
custom modes as well as  device, Host, and OTG.

Some versions have 4 uarts in addition to the USB 2.0 controller if you 
wanted to do USB --> Serial.


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