@whycan 哥，长话短说，要是CAN有缺陷，我就不折腾了啊 TT

@whycanservice 您好 感谢您的回复。从现象上看，WiFi与CAN好像是在竞争一个“口子”，我对Linux驱动不是很了解，我想WiFi与CAN难道不是应该有不同的数据处理管道吗，如果是在同一个NET设备，那Linux的WiFi与CAN就很难搞啊。
很抱歉我要这么质疑一下，您确定CAN与WiFi会竞争或者归流到同一个NET设备吗，因为我将要安装这个思路去验证这点。
另外，如果这样的话，我是不是直接操作寄存器会更好点，

@whycan 感谢您的回复，但是我其实是想知道为什么全志会删除t113-s3的CAN部分说明，即使加回去了，也就是一页

@xiaowenge 我发现1.3版本修改回来的9.15，就一页，没有CAN相关的寄存器说明啊

@whycan 我发现1.3版本修改回来的9.15，就一页，没有CAN相关的寄存器说明啊

@xiaowenge 我看细看内容发现 没有寄存器的介绍 就这么单独一页啊

@whycan 我看细看内容发现 没有寄存器的介绍 就这么单独一页啊

@xiaowenge 感谢您的回复，主要是我CAN通讯，老是在中断里报data overrun错误，尤其是在WiFi变化期间（关闭或打开WiFi，或者WiFi连上网），这个你知道是什么原因吗，难道Linux CAN与WIFI都是走NET接口的，有影响吗

@whycan 感谢您的回复，主要是我CAN通讯，老是在中断里报data overrun错误，尤其是在WiFi变化期间（关闭或打开WiFi，或者WiFi连上网），这个你知道是什么原因吗，难道Linux CAN与WIFI都是走NET接口的，有影响吗

我发现CAN的通讯不稳定，查T113-S3_User_Manual_V1.2.pdf的时候发现你们把9.15也就是CAN寄存器这块给删除，是因为t113的CAN有缺陷吗？

[ 895.901753] RTL871X: start auth
[ 895.921802] RTL871X: auth success, start assoc
[ 895.932682] RTL871X: rtw_cfg80211_indicate_connect(wlan0) BSS not found !!
[ 895.940431] RTL871X: assoc success
[ 895.949068] RTL871X: send eapol packet
[ 896.171253] RTL871X: send eapol packet
[ 896.175783] RTL871X: set pairwise key camid:4, addr:40:fe:95:1d:2d:38, kid:0, type:AES
[ 896.176373] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 896.184900] RTL871X: rtw_tkip_decrypt(wlan0) gkey installed. no_gkey_bc_cnt:2, no_gkey_mc_cnt:4
[ 896.205448] RTL871X: set group key camid:5, addr:40:fe:95:1d:2d:38, kid:1, type:TKIP
[ 903.902506] sun8i-can can@0x0 can0: bus error interrupt 128
[ 903.908739] sun8i-can can@0x0 can0: data overrun interrupt 9
[ 903.936757] sun8i-can can@0x0 can0: bus error interrupt 128
[ 903.942985] sun8i-can can@0x0 can0: data overrun interrupt 9

@liukia 你好 我在《T113-S3_Datasheet_V1.5.pdf》与 《T113-S3_User_Manual_V1.2.pdf》找不到相关的CAN 寄存器说明，请问你是哪里查到的啊？

@l13819506056 你好 我在《T113-S3_Datasheet_V1.5.pdf》与 《T113-S3_User_Manual_V1.2.pdf》找不到相关的CAN 寄存器说明，请问你是哪里查到的啊？

如题，有人碰到过类似的情况吗

@whycan 感谢你的回复 我已经找到原因了
查看了 这个文件 out/t113/evb1_auto/longan/.sunxi.dts 我发现其实没有配置好
配置有两个地方需要改

@whycan 也按照文档配置了

@whycan 感谢你的回复 你说的可能是CONFIG_SPI_SPIDEV 可是我已经设置了 但是不行。您能再看下吗

@whycan 能说的详细点吗 我也碰到这个问题 SPI在/dev上显示不出来

有解决吗 我也碰到这个问题

@lizh023 我发现禁用网络就没有问题 就是不连接WiFi 把掉网线。猜测是CAN在Linux这边认为是网络设备 其他网络设备通讯导致丢帧

@lansecd USB1 没有用啊

@lansecd 读取压力测试怎么样 我这边1M速度 8000多帧会出现丢帧 2500帧才稳定

@liukia 大侠 有应用的测试程序吗 贴上来看看吧 想知道怎么初始化 发送 接收 数据

@qq519472926 我没有ysy_confgi.fex
我的是t113-s3的 板子是mq dual

@qq519472926 还不行啊 卡主了

目前是把twi2使能 吧gmac0禁用了 video0有了 但是还提示错误

mangopi login: [    5.723106] [VIN_WARN]sensor_helper_probe: cannot get sensor0_cameravdd supply, setting it to NULL!
[    5.734370] [VIN_WARN]sensor_helper_probe: cannot get sensor0_iovdd supply, setting it to NULL!
[    5.744295] [VIN_WARN]sensor_helper_probe: cannot get sensor0_avdd supply, setting it to NULL!
[    5.754062] [VIN_WARN]sensor_helper_probe: cannot get sensor0_dvdd supply, setting it to NULL!
[    7.800745] sunxi-vin-core 5809000.vinc: Adding to iommu group 0
[    7.810364] [VIN_WARN]get csi isp clk fail
[    7.815061] [VIN_WARN]get csi isp src clk fail
[    7.820046] [VIN_WARN]get csi mipi clk fail
[    7.824806] [VIN_WARN]get csi mipi src clk fail
[    7.829916] [VIN_WARN]get csi isp clk fail
[    7.834548] [VIN_WARN]Get isp reset control fail
[    7.857278] [ov5640]PWR_ON!
[    7.916252] [ov5640]V4L2_IDENT_SENSOR = 5640
[    7.965291] [ov5640]PWR_OFF!
[    7.981120] [VIN]vinc1 is null
[    7.984633] [VIN_ERR]Bt.601 Pipeline csi subdev is NULL, DevID is 0

对了 串口要改掉 不能是uart0 因为是PE2 PE3
但是uboot改了没有用 内核可以

@yuzukitsuru
你好 我想问一下 我如何能彻底把串口从 ttys0改成ttys1
我想接ov5640 我发现dvp中的PE2与PE3刚好被串口占用了

我修改了 configs/mangopi_mq_dual_defconfig

修改了 ./board/mangopi/mq-dual/dts/linux/sun8i-mangopi-mq-dual-linux.dts

修改了./output/build/uboot-custom/.config

修改了 output/build/linux-custom/.config

还修改了

但是 boot与内核的信息还是会从PE3输出

我后来
make clean
make mangopi_mq_dual_defconfig
make
也还是不行

@yteraa 不好意思 我今天发现我没有改成功 现在我已经没有报这个错误了
但是现在提示说找不到这个ov5640设备 我明明已经连接这个
能帮我再看看吗

o insmod ./lib/modules/5.4.61/kernel/drivers/media/platform/sunxi-vin/vin_v4l2.ko
[   48.051803] sunxi-vin-core 5809000.vinc: Adding to iommu group 0
[   48.072904] [VIN_WARN]get csi isp clk fail
[   48.077510] [VIN_WARN]get csi isp src clk fail
[   48.082502] [VIN_WARN]get csi mipi clk fail
[   48.087180] [VIN_WARN]get csi mipi src clk fail
[   48.092315] [VIN_WARN]get csi isp clk fail
[   48.096915] [VIN_WARN]Get isp reset control fail
[   48.113944] [ov5640]PWR_ON!
[   48.118491] sun8iw20-pinctrl pio: pin PE3 already requested by 2500000.uart; cannot claim for 5800800.vind
[   48.129449] sun8iw20-pinctrl pio: pin-131 (5800800.vind) status -22
[   48.136481] sun8iw20-pinctrl pio: could not request pin 131 (PE3) from group PE3  on device pio
[   48.146236] sunxi-vin-media 5800800.vind: Error applying setting, reverse things back
[   48.154980] [VIN_ERR]mclk0 request pin handle failed!
[   48.215784] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.224511] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.234199] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.240573] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.246963] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.255763] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.265439] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.271751] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.278092] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.286809] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.296479] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.302826] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.309186] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.314845] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.323564] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.333233] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.339597] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.345995] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.354722] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.364386] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.370696] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.377034] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.385752] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.395431] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.401746] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.408037] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.413667] [ov5640]V4L2_IDENT_SENSOR = 0
[   48.418209] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.426937] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.436619] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.442973] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.449378] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.458160] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.467773] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.474084] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.480435] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.489150] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.498832] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.505174] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.511527] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.517185] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.525903] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.535578] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.541893] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.548232] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.556958] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.566639] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.572950] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.579305] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.588020] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.597694] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.604013] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.610323] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.615931] [ov5640]retry = 0, V4L2_IDENT_SENSOR = 0
[   48.621548] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.630333] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.639929] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.646218] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.652588] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.661373] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.670967] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.677305] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.683714] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.692514] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.702110] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.708455] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.714817] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.720488] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.729217] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.738895] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.745187] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.751538] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.760321] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.769995] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.776285] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.782640] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.791439] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.801114] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.807408] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.813717] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.819388] [ov5640]retry = 1, V4L2_IDENT_SENSOR = 0
[   48.824950] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.833668] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.843340] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.849701] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.856096] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.864823] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.874420] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.880731] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.887067] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.895784] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.905382] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.911695] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.917990] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   48.923669] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.932387] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.941982] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.948272] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.954621] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.963340] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   48.972934] 0x02502a00: 01011001 00000001 00007900 00020001 
[   48.979242] 0x02502a10: 00008040 00010004 00010010 00000002 
[   48.985584] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   48.994303] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.003898] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.010211] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.016511] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   49.022140] [ov5640]retry = 2, V4L2_IDENT_SENSOR = 0
[   49.027707] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.036422] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.046019] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.052336] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.058680] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.067407] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.077001] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.083312] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.089668] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.098384] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.108007] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.114320] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.120638] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   49.126296] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.135025] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.144620] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.150930] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.157276] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.166001] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.175597] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.181906] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.188243] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.196957] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.206551] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.212865] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.219183] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   49.224793] [ov5640]retry = 3, V4L2_IDENT_SENSOR = 0
[   49.230410] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.239195] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.248859] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.255150] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.261517] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.270317] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.279915] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.286259] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.292675] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.301471] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.311076] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.317422] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.323784] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   49.329460] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.338177] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.347850] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.354163] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.360520] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.369246] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.378913] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.385201] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.391553] sunxi_i2c_drv_core_process()925 - [i2c2] Timeout when sending 9th SCL clk
[   49.400336] i2c_sunxi_drv_complete()1077 - [i2c2] incomplete xfer(status: 0x1, dev addr: 0x3c)
[   49.409999] 0x02502a00: 01011001 00000001 00007900 00020001 
[   49.416288] 0x02502a10: 00008040 00010004 00010010 00000002 
[   49.422604] [VIN_DEV_I2C]ov5640 sensor read retry = 2
[   49.428224] [ov5640]retry = 4, V4L2_IDENT_SENSOR = 0
[   49.433801] [ov5640] error, chip found is not an target chip.
[   49.440255] [ov5640]PWR_OFF!
[   49.443614] sun8iw20-pinctrl pio: pin PE3 already requested by 2500000.uart; cannot claim for 5800800.vind
[   49.454462] sun8iw20-pinctrl pio: pin-131 (5800800.vind) status -22
[   49.461505] sun8iw20-pinctrl pio: could not request pin 131 (PE3) from group PE3  on device pio
[   49.471210] sunxi-vin-media 5800800.vind: Error applying setting, reverse things back
[   49.479949] [VIN_ERR]mclk0 request pin handle failed!
[   49.497824] sensor_remove ov5640 sd = (ptrval)!
[   49.502997] [VIN_ERR]registering ov5640, No such device!
[   49.508988] [VIN]vinc1 is null

@whycan 谢谢 我试试看

@yuzukitsuru 那就很奇怪啊 我这边一直都是花屏

@yuzukitsuru 你发下你的那个修改的dts文件吗

@yteraa 我改成okay了 还是出现同样的错误

mq dual 编译运行后 ov5640 老报这个错
有人知道原因吗

@yuzukitsuru
试试修改设备树看看是不是那个问题

能具体说下怎么修改吗

@yuzukitsuru 大神 我看你https://github.com/YuzukiHD/Buildroot-YuzukiSBC已经更新了 到 dae8c93
我运行
source envsetup.sh
sync_update
make mangopi_mq_dual_defconfig
make
但是还是花屏
我看更新信息是v1.0.1.tar.gz 我也确实下载了
可还有其他发办法？

@yuzukitsuru 哦哦 麻烦你了

@yuzukitsuru
你好 没有出现雪花屏 是变白了的花屏

我使用longan_MQ-Dual_uart0_pe2_pe3_rgb800480.img
不会花屏 就是只显示一部分

@yuzukitsuru
是的 还是花
make clean
make
重新编译还是花

指令会报错

cat /dev/urandom > /dev/fb0

cat: write error: No space left on device
但是 # cat /dev/urandom 这样不会
大神 可有什么办法
我这边是芒果不鸽个人店那边买的 5寸 电阻屏幕

@yuzukitsuru 在 求救帖 t1113-s3 mq dual 触摸屏问题 5寸 480X272 中说：

sync_update

运行了
source envsetup.sh
sync_update
make mangopi_mq_dual_defconfig
make

屏幕还是一样的问题

@yuzukitsuru
我的是486dc3a

@yuzukitsuru 你好 我的是这个版本

@yuzukitsuru 最新版本的 t113-s3 480X272显示还是有问题 需要改什么地方吗

是t113-s3 mq dual

把sun8i-mangopi-mq-dual-linux.dts改成

内核已经配置的是
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_V4L_PLATFORM_DRIVERS=y
CONFIG_V4L_MEM2MEM_DRIVERS=y
CONFIG_VIDEOBUF2_V4L2=y

一次加载模块
videobuf2-memops.ko
videobuf2-dma-contig.ko
vin_io.ko
ov5640.ko
vin_v4l2.ko
没有出现/dev/vide0错误

加载vin_io.ko 提示出现
[ 42.161903] [VIN_WARN]sensor_helper_probe: cannot get sensor0_cameravdd supply, setting it to NULL!
[ 42.172122] [VIN_WARN]sensor_helper_probe: cannot get sensor0_iovdd supply, setting it to NULL!
[ 42.181840] [VIN_WARN]sensor_helper_probe: cannot get sensor0_avdd supply, setting it to NULL!
[ 42.191457] [VIN_WARN]sensor_helper_probe: cannot get sensor0_dvdd supply, setting it to NULL!

加载vin_v4l2.ko 提示出现
[ 57.021431] sunxi-vin-core 5809000.vinc: Adding to iommu group 0
[ 57.039576] sunxi-vin-core 5809200.vinc: Adding to iommu group 0
[ 57.048211] [VIN_WARN]get csi isp clk fail
[ 57.052901] [VIN_WARN]get csi isp src clk fail
[ 57.057850] [VIN_WARN]get csi mipi clk fail
[ 57.062602] [VIN_WARN]get csi mipi src clk fail
[ 57.067714] [VIN_WARN]get csi isp clk fail
[ 57.072343] [VIN_WARN]Get isp reset control fail
[ 57.077706] [VIN_ERR]ov5640 request i2c2 adapter failed!

请问是哪里有问题

使用过最新的 https://github.com/YuzukiHD/Buildroot-YuzukiSBC 与 https://github.com/mangopi-sbc/buildroot-d1x-t113
make mangopi_mq_dual_defconfig 后 屏幕显示不对


可有大神有解？

@wjp2547532 您好 我屏幕也碰到相同的问题 显示不全 又花 请问您有解决吗

@mangogeek 您好 想问下你这个longan_MQ-Dual_uart0_pe2_pe3_rgb800480 是在哪个基础上编译的 我想弄个480X272的。【t113 SDK】上编译的显示不出来 【buildroot-d1x-t113-main】上编译的 显示一条条线段