With this fix it seems more reliable but it did crash again last night leaving a veye_raspistill Zombie. Short stack trace:-

Apr 11 23:31:21 allsky kernel: [22053.109872] WARNING: CPU: 3 PID: 20358 at drivers/firmware/raspberrypi.c:64 rpi_firmware_transaction+0xec/0x128
Apr 11 23:31:21 allsky kernel: [22053.109884] Firmware transaction timeout
Apr 11 23:31:21 allsky kernel: [22053.109895] Modules linked in: rpcsec_gss_krb5 8021q garp stp llc spidev brcmfmac brcmutil sha256_generic i2c_mux_pinctrl i2c_mux raspberrypi_hwmon cfg80211 rfkill bcm2835_codec(C) v4l2_mem2mem bcm2835_v4l2(C) bcm2835_isp(C) bcm2835_mmal_vchiq(C) videobuf2_vmalloc snd_bcm2835(C) videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common snd_pcm snd_timer i2c_bcm2835 snd spi_bcm2835 videodev mc vc_sm_cma(C) uio_pdrv_genirq uio fixed i2c_dev ip_tables x_tables ipv6
Apr 11 23:31:21 allsky kernel: [22053.110362] CPU: 3 PID: 20358 Comm: kworker/3:0 Tainted: G C 5.10.17-v7+ #1403
Apr 11 23:31:21 allsky kernel: [22053.110369] Hardware name: BCM2835
Apr 11 23:31:21 allsky kernel: [22053.110386] Workqueue: events dbs_work_handler

已私信。已私信。

@seyran Извините, что так долго не отвечал вам. Судя по вашему снимку экрана, похоже, что команда была выполнена правильно. Вы должны видеть изображение при подключении монитора HDMI.

@veye_xumm ok

@picantepeperoni You are welcome.

@lighteek 有点奇怪了。你参考3.5.4把Image也换掉试试。

@watchever
I think what you mentioned is mshutter. Yes, of course.
mshutter :
If you use manual mode, the exposure time will be independent of the ambient brightness.

@chenhaoyu
这个实现不了，树莓派只有两个mipi口。

@yongjin
I don't know what your current state of knowledge is. If you don't understand i2C, you don't understand fpdlink, you don't understand registers. I think you should first learn the basics and be able to understand the information and code we provide now, and then proceed to your next work.
Good luck.

@xsw
很好。
硬件是被动的，软件是主动的。
摄像头不能去操作主板的内存，是靠主板上的软件来操作摄像头，把数据放到内存。
树莓派是上我们提供的两种应用模式，都可以由软件获取到摄像头输出的数据。
请参考详细的文档和代码。

@wqeeqweqwwccsd
你这种测试方法是极为模糊和不确切的。请参考我上一个帖子发给你的链接。

@max
lowlight只有在自动曝光模式下生效。你一旦设置mshutter为手动，lowlight就不生效了。

@veye_xumm Can't save? Oh... It's really disappointing.
Anyway... Okay. Thank you.
I'll close this agenda.

@milank
I think it was RF interference on the FFC cable.

@287787472 是的

@vladimi-zheng 他这个跟你的问题应该不是一回事。你这个我首先怀疑fpc叠放，引起了信号串扰。

@m4416202
你可以参考这个帖子，跟你的问题类似。https://forum.veye.cc/topic/501/sc130m搭配rk3588不出图/16

@jgg You are welcome, will improve the wiki doc.

@veye_xumm

Hello my friend.
We are sending I2C commands via a FPGA.

1_ Writing 0xff to 0x000b solved our problem. Thank you. Please give us a command to save this change.

2_ We are trying to change video frame rate (now is 30fps and we need 25fps).
by these commands we cannot do this :
0x10 0xDE
0x11 0xC2
0x12 0x00
0x13 0x00
(sending Two byte, then sending next two byte and ... ).

Please guide me. Thanks a lot.

@otca I will continue discussing that issue with you in the other post.