msh />spitools
---------------
spi tools help:
---------------
spitools <command> device_name [options]
spitools config device_name [options]
    -s=[speed] spi speed, default=1000000
    -m=[0-3] spi mode, default=0
    -l=1:lsb, 0:msb, default=0
    -b=[value] bits per word, default=8
spitools trans device_name [options] [data0 data1...]
    -v=[value], default=0xFF
    -l=[value], default=1, max=512
spitools init device_name bus_name cs_pin
spitools deinit device_name

msh />spitools init spi0-1 spi0 5
msh />spitools config spi0-1 -s=5000000
msh />spitools trans spi0-1 -v=0x5b -l=10
recv:10,[5B 5B 5B 5B 5B 5B 5B 5B 5B 5B]

    ---------------
    spi tools help:
    ---------------
    spitools <command> device_name [options]
    spitools config [options]
        -s --speed=[value] spi speed, default=1000000
        -m --mode=[0-3] spi mode, default=0
        -l --lsb=1:lsb, 0:msb, default=0
        -b --bits=[value] bits per word, default=8
    spitools trans bus_name [options] [data0 data1...]
        -v --value=[value] master to slave default data, default value=0xFF
        -l --len=[value], default=1