dknabe

Clarification of mistake on RS232 pinout. TX and RX are swapped in the above post from the point of view of the camera. The camera RS232 pinout is 2-TX, 3-RX, 4-gnd. Connect TX of your RS232 adapter to pin 3 of the camera, RX of your adapter to pin 2, and ground to ground. Sorry for the confusion.

I can confirm that the RS232 port does indeed work and provides console access. Levels are 3.3v. Use a USB-to-RS232 TTL 3.3v adapter. RS232 pinout on the board is: 1. 3.3vdc (not needed) 2. Rx 3. Tx 4. Gnd (nearest the screw hole) I use Putty for serial usb access with the following settings. baud rate= 115,200 stop bits=1 parity=none flow control=none Here's the beginning of the tty console session for a DS-2032-I that I have. U-Boot 1.3.4-100728 (Nov 11 2014 - 13:58:34) ARM Clock: 480MHz DDR Clock: 336MHz Hit Ctrl+u to stop autoboot: 2 Hit Ctrl+u to stop autoboot: 1 Hit Ctrl+u to stop autoboot: 0 |BIND err| Unknown command:null nand booting ... load kernel... load ramdisk... init started: BusyBox v1.19.3 (2014-07-11 11:25:54 CST) starting pid 375, tty '': '/etc/init.d/rcS' Starting udev: [ OK ] starting pid 606, tty '': '/sbin/iptables -A INPUT -p tcp --dport 23 -j DROP' starting pid 607, tty '': '/sbin/iptables -A INPUT -p tcp --dport 22 -j DROP' starting pid 608, tty '': '/sbin/iptables -A INPUT -p tcp --dport 21 -j DROP' starting pid 609, tty '': '/sbin/inetd -f -e /etc/inetd.conf' starting pid 610, tty '': '-/bin/sh' BusyBox v1.19.3 (2014-07-11 11:25:54 CST) built-in shell (ash) Enter 'help' for a list of built-in commands. UBI device number 1, total 191 LEBs (24643584 bytes, 23.5 MiB), available 0 LEBs (0 bytes), LEB size 129024 bytes (126.0 KiB) waiting for /dev/ubi1_0. Check dir /dav ok! (0) UBI device number 3, total 32 LEBs (4128768 bytes, 3.9 MiB), available 0 LEBs (0 bytes), LEB size 129024 bytes (126.0 KiB) waiting for /dev/ubi3_0. Check dir /davinci ok! (0) UBI device number 4, total 31 LEBs (3999744 bytes, 3.8 MiB), available 0 LEBs (0 bytes), LEB size 129024 bytes (126.0 KiB) waiting for /dev/ubi4_0. Check dir /config ok! (0) Hit Ctrl+c to stop and exec /home/initrun.sh to continue -------------------------- Lots of cool access via the console. Cheers, Doug