Nand-x update using MAX3222CPN RS232 3.3v TTL level converter

hydrasworld

Junior Member
Apr 16, 2005
15
0
UK
Hi guys.

I don't have a CK3i and need to update my Nand-X and was wondering if I can hook up my RS232 5V (PC) to RS232 3.3 (TTL) board I made years ago to re-program the nand-x?

I've used the board for serial console/bootloader access to various routers and for dreamcast hacking back in the day.

Attached is the schematic for the board I have.

I found various pinouts here:

http://team-xecuter.com/forums/showthread.php?t=73165

MAX3222 details here:

http://www.maxim-ic.com/datasheet/index.mvp/id/1068

Is there going to be more to it then just hooking up TX/RX/GND and letting the PC power the nand-x via USB cable?
 

Antalpromille

VIP Member
Aug 4, 2011
3,146
0
Borås, sweden
i have that one also but havent tried it. i updated my nand-x using FTDI´s ttl-232r-3v3.
orange cable to nand-x RX
yellow cable to nand-x TX
black cable to nand-x gnd and external supply
3.3v from external supply to nand-x 3.3v.
isp on nand-x connected to gnd untill its flashed.