Data Sheet

9/24/2015 ARPI600WaveshareWiki
http://www.waveshare.com/wiki/ARPI600 4/18
System serial port configuration
1. Enter the terminal of Raspberry Pi, and run:
sudonano/boot/cmdline.txt
Then, you should modify the following lines:
wc_otg.lpm_enable=0console=ttyAMA0,115200kgdboc=ttyAMA0,115200console=tty1root=/dev/mmcblk0p2
rootfstype=ext4elevator=deadlinerootwait
into:
dwc_otg.lpm_enable=0console=tty1root=/dev/mmcblk0p2rootfstype=ext4
elevator=deadlinerootwait
Press the keys Ctrl+X, and select the option Y to save the modification.
2. Run the code:
sudonano/etc/inittab
And modify the following lines:
#SpawnagettyonRaspberryPiserialline
T0:23:respawn:/sbin/getty‐LttyAMA0115200vt100
into:
#SpawnagettyonRaspberryPiserialline
#T0:23:respawn:/sbin/getty‐LttyAMA0115200vt100
Press the keys Ctrl+X, and select the option Y to save the modification.
3. Run the code:
sudoreboot
After completing the modifications described above and restarting the Raspberry Pi
board, the serial debugging function is started up. In this mode, you cannot enter the
terminal of the Pi via the serial port any more, but can control the serial output by the