2014-06-02

radxa -- Serial console debugging




Serial console debugging / putty


1.
Connect the cable
Board    TTL2USB Cable
RX    ->  Green
TX    ->  White
GND   ->  Black 


2.
root@slitaz:/home/tux# dmesg | tail
usb 2-1: new full-speed USB device number 3 using uhci_hcd
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for pl2303
pl2303 2-1:1.0: pl2303 converter detected
usb 2-1: pl2303 converter now attached to ttyUSB0
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver


3.
root@slitaz:/home/tux#  cat /proc/tty/drivers
/dev/tty             /dev/tty        5         0 system:/dev/tty
/dev/console         /dev/console    5         1 system:console
/dev/ptmx            /dev/ptmx       5         2 system
/dev/vc/0            /dev/vc/0       4         0 system:vtmaster
usbserial            /dev/ttyUSB   188      0-253 serial
serial               /dev/ttyS       4         64-67 serial
pty_slave            /dev/pts      136         0-1048575 pty:slave
pty_master           /dev/ptm      128         0-1048575 pty:master
unknown              /dev/tty        4         1-63 console


4.
root@slitaz:/home/tux# ls -l /dev/ttyUSB*
crw-rw----    1 root     dialout   188,   0 May  2 21:41 /dev/ttyUSB0


5.
root@slitaz:/home/tux# grep dialout /etc/group
dialout:x:95:tux


6.
root@slitaz:/home/tux# tazpkg -gi putty


7.
DDR Version 1.04 20130517
In
DDR3
300MHz
Bus Width=32 Col=10 Bank=8 Row=15 CS=2 Die Bus-Width=16 Size=2048MB
Memory OK
OUT
BUILD=====2
SdmmcInit=0 0
FwPartOffset=0 , 0
No.1 FLASH ID:2c 64 44 4b a9 0
OK! 248205
unsigned!
SecureBootEn = 0 0
Boot ver: 2013-12-02#2.08
start_linux=====253060
 2571850 Starting kernel...@0x60408000

<hit enter to activate fiq debugger>
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.10.37-slitaz (root@slitaz) (gcc version 4.6.3 (SliTaz) ) #1 SMP PREEMPT Sun May 18 00:04:25 UTC 2014
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c53c7d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: RK30board, model: rockchip,rk3188