I.MX6 Android CAN 命令行测试

/*********************************************************************
 *                 I.MX6 Android CAN 命令行测试
 * 说明：
 *     这里使用can-utils测试一下CAN驱动。
 *
 *                                    2016-8-9 深圳 南山平山村 曾剑锋
 ********************************************************************/

一、shell 命令流程：
    . netcfg can0 down
    . ip link set can0 type can bitrate  triple-sampling on(或者：ip link set can0 up type can bitrate )
    . ip -details -statistic link show can0
    . netcfg can0 up
    . ./cansend can0 #
    . ip -details -statistic link show can0
    . ./canfdtest -vv can0
    . ip -details -statistic link show can0

二、运行流程：
    root@android:/ # netcfg can0 down
    root@android:/ # ip link set can0 type can bitrate  triple-sampling on
    root@android:/ # ip -details -statistic link show can0
    : can0: <NOARP,ECHO> mtu  qdisc noop state DOWN qlen
        link/can
        can <TRIPLE-SAMPLING> state STOPPED (berr-counter tx  rx ) restart-ms
        bitrate  sample-point 0.733
        tq  prop-seg  phase-seg1  phase-seg2  sjw
        flexcan: tseg1 .. tseg2 .. sjw .. brp .. brp-inc
        clock
        re-started bus-errors arbit-lost error-warn error-pass bus-off

        RX: bytes  packets  errors  dropped overrun mcast   

        TX: bytes  packets  errors  dropped carrier collsns 

    root@android:/ # netcfg can0 up
    flexcan imx6q-flexcan.: writing ctrl=0x01232084
    |root@android:/ # cd /data/local
    root@android:/data/local # ./cansend can0 #
    root@android:/data/local # ip -details -statistic link show can0
    : can0: <NOARP,UP,LOWER_UP,ECHO> mtu  qdisc pfifo_fast state UNKNOWN qlen
        link/can
        can <TRIPLE-SAMPLING> state ERROR-ACTIVE (berr-counter tx  rx ) restart-ms
        bitrate  sample-point 0.733
        tq  prop-seg  phase-seg1  phase-seg2  sjw
        flexcan: tseg1 .. tseg2 .. sjw .. brp .. brp-inc
        clock
        re-started bus-errors arbit-lost error-warn error-pass bus-off

        RX: bytes  packets  errors  dropped overrun mcast   

        TX: bytes  packets  errors  dropped carrier collsns 

    root@android:/data/local # ip -details -statistic link show can0
    : can0: <NOARP,UP,LOWER_UP,ECHO> mtu  qdisc pfifo_fast state UNKNOWN qlen
        link/can
        can <TRIPLE-SAMPLING> state ERROR-ACTIVE (berr-counter tx  rx ) restart-ms
        bitrate  sample-point 0.733
        tq  prop-seg  phase-seg1  phase-seg2  sjw
        flexcan: tseg1 .. tseg2 .. sjw .. brp .. brp-inc
        clock
        re-started bus-errors arbit-lost error-warn error-pass bus-off

        RX: bytes  packets  errors  dropped overrun mcast   

        TX: bytes  packets  errors  dropped carrier collsns 

    root@android:/data/local # ./canfdtest -vv can0
    interface = can0, family = , type = , proto =
    : []       c9
    : []       c9
    : []       c9
    : []       c9
    ^Crecv failed: Bad file number
    Exiting...
    |root@android:/data/local # ip -details -statistic link show can0
    : can0: <NOARP,UP,LOWER_UP,ECHO> mtu  qdisc pfifo_fast state UNKNOWN qlen
        link/can
        can <TRIPLE-SAMPLING> state ERROR-ACTIVE (berr-counter tx  rx ) restart-ms
        bitrate  sample-point 0.733
        tq  prop-seg  phase-seg1  phase-seg2  sjw
        flexcan: tseg1 .. tseg2 .. sjw .. brp .. brp-inc
        clock
        re-started bus-errors arbit-lost error-warn error-pass bus-off

        RX: bytes  packets  errors  dropped overrun mcast   

        TX: bytes  packets  errors  dropped carrier collsns 

    root@android:/data/local #