f1c100s ov2640抓图失败,求指点

swunzg · 2022-09-13 00:47:49

原理图和tiny200完全一致【电压3.2v、2.8v、1.2v】

从tiny200编译的镜像

驱动加载成功，ov2640的ID已经读到了：
[ 1.007089] i2c /dev entries driver
[ 1.011204] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[ 1.024224] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[ 1.037633] ov2640 0-0030: ov2640 Product ID 26:42 Manufacturer ID 7f:a2
[ 1.044353] i2c i2c-0: OV2640 Probed
[ 1.049307] sun4i-csi 1cb0000.csi: Packed (RAW) format enabled.
[ 1.056079] sun4i-csi 1cb0000.csi: -- Device registered as video0
[ 1.065431] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)

/dev/video0设备也已经生成;
# ls /dev/
audio snd tty34 tty61
console tty tty35 tty62
cpu_dma_latency tty0 tty36 tty63
dri tty1 tty37 tty7
dsp tty10 tty38 tty8
full tty11 tty39 tty9
gpiochip0 tty12 tty4 ttyS0
i2c-0 tty13 tty40 ttyS1
kmsg tty14 tty41 ttyS2
log tty15 tty42 ttyS3
media0 tty16 tty43 ttyS4
mem tty17 tty44 ttyS5
mixer tty18 tty45 ttyS6
mtd0 tty19 tty46 ttyS7
mtd0ro tty2 tty47 urandom
mtd1 tty20 tty48 v4l-subdev0
mtd1ro tty21 tty49 v4l-subdev1
mtd2 tty22 tty5 vcs
mtd2ro tty23 tty50 vcs1
mtd3 tty24 tty51 vcsa
mtd3ro tty25 tty52 vcsa1
mtdblock0 tty26 tty53 vcsu
mtdblock1 tty27 tty54 vcsu1
mtdblock2 tty28 tty55 video0
mtdblock3 tty29 tty56 watchdog
null tty3 tty57 watchdog0
ptmx tty30 tty58 zero
pts tty31 tty59
random tty32 tty6
shm tty33 tty60
#

使用命令抓图，没有输出，超时：
#media-ctl --set-v4l2 '"ov2640 0-0030":0[fmt:YUYV8_2X8/640x480]'
#fswebcam -d /dev/video0 --no-banner -r 640x480 -S 2 1.jpg

--- Opening /dev/video0...
Trying source module v4l2...
[ 106.200225] sun4i-csi 1cb0000.csi: -- csi open successed
/dev/video0 opened.
[ 106.216927] sun4i-csi 1cb0000.csi: --csi querycap ok:platform:1cb0000.csi
No input was specified, using the first.
--- Capturing frame...
Skipping 2 frames...
Timed out waiting for frame!
Capturing 1 frames...
Timed out waiting for frame!
[ 126.380363] sun4i-csi 1cb0000.csi: --csi release ok
No frames captured.
#

# media-ctl --print-topology
Media controller API version 5.4.196

Media device information
------------------------
driver sun4i-csi
model Allwinner Video Capture Device
serial
bus info
hw revision 0x0
driver version 5.4.196

Device topology
- entity 1: ov2640 0-0030 (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev0
pad0: Source
[fmt:YUYV8_2X8/640x480 field:none
crop.bounds:(0,0)/1600x1200
crop:(0,0)/1600x1200]
-> "sun4i-csi-0":0 [ENABLED,IMMUTABLE]

- entity 3: sun4i-csi-0 (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev1
pad0: Sink
[fmt:YUYV8_2X8/640x480 field:none]
<- "ov2640 0-0030":0 [ENABLED,IMMUTABLE]
pad1: Source
[fmt:YUYV8_2X8/640x480 field:none]
-> "sun4i_csi":0 [ENABLED,IMMUTABLE]

- entity 6: sun4i_csi (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "sun4i-csi-0":1 [ENABLED,IMMUTABLE]

# fswebcam -d /dev/video0 -p YUYV -r 640x480 -S 2 1.jpg
--- Opening /dev[ 347.542726] sun4i-csi 1cb0000.csi: -- csi open successed
/video0...
[ 347.549321] sun4i-csi 1cb0000.csi: --csi querycap ok:platform:1cb0000.csi
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
--- Capturing frame...
Skipping 2 frames...
Timed out waiting for frame!
Capturing 1 frames...
Timed out waiting for frame!
[ 367.710538] sun4i-csi 1cb0000.csi: --csi release ok
No frames captured.
#

驱动中加了些打印但是没有报错，没有思路了，请大佬们指点一下
跪谢！

最近编辑记录 swunzg (2022-09-13 00:57:07)

swunzg · 2022-09-13 10:51:06

哇酷小二说：

U5 第8脚 PWD 电平对吗？

第8脚测试了是0；
第6脚，RST我把它断开了

还是不行，好奇怪，关键是内核没有报错，无从下手；
ov2640似乎不是标准的iic，i2c-tools好像还没有办法操作

swunzg · 2022-09-13 11:44:18

@哇酷小二
好的谢谢我检查下硬件

swunzg · 2022-09-14 11:30:21

焊接技术不过关，松香用了很多，后来用洗板水，结果松香流到摄像头的座子里面，导致有点接触不良，用镊子刮了一下就可以了，看来以后直接用锡浆算了

# fswebcam -d /dev/video0 --no-banner -r 800x600 -S 3 3.jpg
--- Opening /dev[ 2775.189562] sun4i-csi 1cb0000.csi: -- csi open successed
/video0...
[ 2775.195965] sun4i-csi 1cb0000.csi: --csi querycap ok:platform:1cb0000.csi
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
--- Capturing frame...
Skipping 3 frames...
Capturing 1 frames...
Captured 4 frames in 0.21 seconds. (19 fps)
[ 2775.971309] sun4i-csi 1cb0000.csi: --csi release ok
--- Processing captured image...
Disabling banner.
Writing JPEG image to '3.jpg'.
#

WhyCan Forum(哇酷开发者社区)

楼主 # 2022-09-13 00:47:49 分享评论

f1c100s ov2640抓图失败,求指点

楼主 #2 2022-09-13 10:51:06 分享评论

Re: f1c100s ov2640抓图失败,求指点

楼主 #4 2022-09-13 11:44:18 分享评论

Re: f1c100s ov2640抓图失败,求指点

楼主 #5 2022-09-14 11:30:21 分享评论

Re: f1c100s ov2640抓图失败,求指点

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