Advanced Search

I did type
sudo lspci -v
did i?
-
The port is there and working, but there is no info on capabilities as you did not use sudo.
The port address to type into the wizard is 0xe000

Here is the relevant section of the response to lspci -v
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

01:00.0 Serial controller: Nanjing Qinheng Microelectronics Co., Ltd. CH384 Dual Port Serial and Parallel Port Adapter (rev 10) (prog-if 05 [16850])
    Subsystem: Nanjing Qinheng Microelectronics Co., Ltd. CH384 Dual Port Serial and Parallel Port Adapter
    Flags: fast devsel, IRQ 16, IOMMU group 2
    I/O ports at e000
    Memory at df308000 (32-bit, prefetchable) [size=32K]
    I/O ports at e100
    Expansion ROM at df300000 [disabled] [size=32K]
    Capabilities: <access denied>
    Kernel driver in use: wchpciserial+
    Kernel modules: parport_serial, wch, wch_pre

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Thanks,
Marty

That's nice, how is the latency? It might help to isolate the last 4 cores (isolcpus=2-5)if just isolating the last core is not good enough (isolcpus=5)

For spi, open /boot/armbianEnv.txt and edit the following:
overlay_prefix=rockchip-rk3399
overlays=spi-spidev