ROCK64 Serial
It is also possible to use the RaspberryPi as as 3.3v TTL serial adapter for the Rock64. Connect pin 6 to 6, 8 to 10 and 10 to 8 (TX/RX lines crossed between the boards.)
The Rock64 operates at 1500000 baud, so you will need to add a config file line to the RaspberryPi /boot/config.txt (by default the RaspberryPi only allows serial operation up to 115200 baud.)
On the RaspberryPi (after a reboot) you can then do
and that will get you the serial output from the Rock64 (Note, if you reboot the Pi while the Rock64 is running, you will spam it with some boot message strings at the wrong baud rate...)
The Rock64 operates at 1500000 baud, so you will need to add a config file line to the RaspberryPi /boot/config.txt (by default the RaspberryPi only allows serial operation up to 115200 baud.)
init_uart_clock=64000000
On the RaspberryPi (after a reboot) you can then do
minicom -D /dev/ttyAMA0 -b 1500000and that will get you the serial output from the Rock64 (Note, if you reboot the Pi while the Rock64 is running, you will spam it with some boot message strings at the wrong baud rate...)
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