Update on JuiceBox Dev
After frying my last juicebox (long story), I bought another one off ebay and it recently arrived. Finally I have had some time to get it up to speed (open it up, solder the sd/mmc lines, solder the UART lines). It is working great, and for the first time I am seeing the kernel boot messages, which I have posted here. Read on to see pictures and more information.
Here is a picture of my current setup:
![]()
On the breadboard is the sparkfun sd/mmc breakout board, my own custom max232 board (this one rigged with a max3232 since juicebox operates at 3.3v). Since I’m currently stuck with a laptop that doesn’t have a serial port, I’m using a cheap serial-USB converter which apparently works fine with the juicebox UART/max3232.
Here is a picture of the wiring on the back of the juicebox board:
![]()
Here are the captured kernel messages, captured from HyperTerminal: http://www.frozeneskimo.com/electronics/JuiceBoxSerialOutput.txt
For more information on JuiceBox dev, see the eLinux Wiki page on it here: http://www.elinux.org/wiki/JuiceBox. Also, check out the JuiceBox section on the Linux-Hacker forum: http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl.

Sebastian Said,
September 5, 2008 @ 8:49 am
Hi,
Great stuff! Can you still remember how you wired up the UART lines on the Juicebox?
Thanks.