YY3568 Android 系统 CAN 通信异常

Daobidao

硬件主板型号：YY3568
固件名称/系统版本：原厂安卓

问题描述及复现步骤:
按照 https://wiki.youyeetoo.cn/zh/YY3 ... evelopmentGuide#CAN 中 shell 调用 CAN 部分重启 can0

参考其他文档后，仍然无法发送 can 帧

请教应该如何修复这些问题？

何浩钧

你好！具体是什么异常。status怎么样

Daobidao

具体操作 console 截图如下（没发上截图，转成文本了）

PS D:\xxx> adb shell "zcat /proc/config.gz | grep -E 'CONFIG_CAN(_RAW|_BCM)?=[ym]'"
CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
PS D:\xxx> adb shell ip link show | grep -E '[0-9]+: can[0-9]*:'
3: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 72 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10
PS D:\xxx> adb shell ip link set can0 down
PS D:\xxx> adb shell ip link set can0 type can bitrate 1000000
PS D:\xxx> adb shell ip link set can0 up
PS D:\xxx> adb shell ip -details link show can0
3: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 72 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10
    link/can  promiscuity 0
    can <FD> state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0
          bitrate 1003378 sample-point 0.743
          tq 13 prop-seg 27 phase-seg1 27 phase-seg2 19 sjw 1
          rockchip_canfd: tseg1 1..128 tseg2 1..128 sjw 1..128 brp 1..256 brp-inc 2
          dbitrate 2970000 dsample-point 0.720
          dtq 13 dprop-seg 8 dphase-seg1 9 dphase-seg2 7 dsjw 1
          rockchip_canfd: dtseg1 1..32 dtseg2 1..16 dsjw 1..16 dbrp 1..256 dbrp-inc 2
          clock 148500000numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
PS D:\xxx> adb shell ip link set can0 down
PS D:\xxx> adb shell ip link set can0 type can bitrate 1000000 dbitrate 3000000 fd on
PS D:\xxx> adb shell ip link set can0 up      
PS D:\xxx> adb shell ip -details link show can0
3: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 72 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10
    link/can  promiscuity 0
    can <FD> state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0
          bitrate 1003378 sample-point 0.743
          tq 13 prop-seg 27 phase-seg1 27 phase-seg2 19 sjw 1
          rockchip_canfd: tseg1 1..128 tseg2 1..128 sjw 1..128 brp 1..256 brp-inc 2
          dbitrate 2970000 dsample-point 0.720
          dtq 13 dprop-seg 8 dphase-seg1 9 dphase-seg2 7 dsjw 1
          rockchip_canfd: dtseg1 1..32 dtseg2 1..16 dsjw 1..16 dbrp 1..256 dbrp-inc 2
          clock 148500000numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
PS D:\xxx> adb shell cansend can0 12#DEADBAFF
/system/bin/sh: cansend: inaccessible or not found
PS D:\xxx>

何浩钧

Daobidao 发表于 2025-5-28 11:18
具体操作 console 截图如下（没发上截图，转成文本了）

PS D:\xxx> adb shell "zcat /proc/config.gz |  ...

已经可以正常通信
报错是缺少can-utils，
可以通过 SocketCAN 使用 Java 层 JNI 控制