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    SOLVED 设置曝光值有限制

    VEYE MIPI camera
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    • L
      lin @lin last edited by

      @lin 我有用c1.07版本的固件试了一下,现在没办法更改metime的值了?这可能是什么原因呀?
      687251b7-bcaf-4ce2-ae68-3f74aca6191d-image.png
      28bb580c-336a-4037-b7e6-5f0b9a4d6dde-image.png

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      • veye_xumm
        veye_xumm @lin last edited by

        @lin
        你好,相机的曝光时间上限收到帧率(fps)的强限制。比如,你现在配置的fps为120,那么最大曝光时间就限制为8337us了。 max_shutter_time=1000000/fps us
        所以,如果你想要超过此限制的曝光时间,需要先把fps配置的低一些。

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        • L
          lin @veye_xumm last edited by

          @veye_xumm 可以修改最大曝光值吗?我就是想要在实现硬触发时曝光值可以达到15ms,将帧率修改为120的

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          • veye_xumm
            veye_xumm @lin last edited by

            @lin
            15ms*120=1800ms,超过1秒钟了。 你想要做到15ms的曝光时间,需要将fps改为小于66。

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            • L
              lin @veye_xumm last edited by

              @veye_xumm 之前不是说,20ms的触发间隔,曝光时间是这样计算的吗?
              504b0b8c-4a5a-4b6f-af9b-b1a36ca5e368-image.png

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              • veye_xumm
                veye_xumm @lin last edited by

                @lin 矛盾吗?

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                • L
                  lin @veye_xumm last edited by

                  @veye_xumm 我设置最小触发是25ms,相机120fps,曝光时间不是可以达到14ms左右,现在不能设到这个值呀?我刚试了一下c1.07发现他脚本设置metime不起作用,写入值没反应,是我操作太多次导致的吗?

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                  • veye_xumm
                    veye_xumm @lin last edited by

                    @lin 你现在用的是AR0234吗? 一般客户用的触发模式曝光时间都短于帧周期,但是你这个需求也是合理的,有可能需要做个升级包,在配置曝光时间的时候去掉帧周期上限这个限制。

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                    • L
                      lin @veye_xumm last edited by

                      @veye_xumm 是的,有对应的升级包吗?

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                      • veye_xumm
                        veye_xumm @lin last edited by

                        @lin 今天下午可以出一个临时版本的升级包给你测测看先。

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                        • veye_xumm
                          veye_xumm @lin last edited by

                          @lin
                          请尝试以下这个v1.09的升级包
                          https://www.mediafire.com/file/kz0ci1anjnpabsj/RAW-MIPI-AR0234M_C1.09_20240625_tmp_upgrade.bin/file

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                          • L
                            lin @veye_xumm last edited by

                            @veye_xumm 更换后, 无法修改值,其他版本也不行,是寄存器坏了吗?40a0ef06-3604-44cf-afd3-b879311fc8b0-image.png

                            veye_xumm 1 Reply Last reply Reply Quote 0
                            • veye_xumm
                              veye_xumm @lin last edited by

                              @lin 寄存器不会坏,你现在是自动曝光模式还是手动曝光模式啊?

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                              • L
                                lin @veye_xumm last edited by

                                @veye_xumm 解决了,感谢您的帮助

                                veye_xumm 1 Reply Last reply Reply Quote 0
                                • veye_xumm
                                  veye_xumm @lin last edited by

                                  @lin 不客气。

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