On Mon, Mar 23, 2015 at 6:25 PM, Geoff Levand <geoff@infradead.org> wrote:

Hi,

Just for anyone interested, I bought an FTDI Chip
TTL-232RG-VREG1V8-WE (1.8 volt) USB to TTL serial cable
and soldered the wire leads the the Hikey J16 as so:

ftdi orange (TX) - Hikey pin2 (RX)
ftdi yellow (RX) - Hikey pin4 (TX)
ftdi black (GND) - Hikey pin3 (GND)
ftdi red (VCC) - open
ftdi green (RTS) - open
ftdi brown (CTS) - open

Seems to be working fine.

[1] http://www.ftdichip.com/Support/Documents/DataSheets/Cables/DS_TTL-232RG_CABLES.pdf

-Geoff

Working fine here too. I have the variable voltage version (TTL-232RG-VIP-WE) which requires the red lead to be connected to the HiKey pin 1 (1.8V).

Let me add that I use miniterm.py to connect: miniterm.py --lf /dev/ttyUSB0 115200

Install with 'sudo apt-get install python-serial' if you're using Ubuntu. Very simple and works perfectly.

Cheers,

Jerome