├── LICENSE ├── OpenMVX-BOM-淘宝链接.xlsx ├── README.md ├── figures ├── OV7725_FPC.png ├── OV7725_FPC1.jpg ├── image-20201025225515458.png ├── image-20201025230045449.png ├── image-20201025230230826.png ├── image-20201025230239753.png └── image-20201025230441707.png ├── hardware ├── OpenMVX.IntLib ├── OpenMVX.PrjPcb ├── OpenMVX.SchDoc ├── OpenMVX.pcbdoc └── OpenMVX.pdf ├── images ├── PCB 3D图bottom.png ├── PCB 3D图top.png ├── PCB截图.png ├── 原理图截图.png ├── 第一代 广角镜头.jpg ├── 第一代 普通镜头.jpg ├── 第三代 bug改好.jpg └── 第二代 TF卡成功.jpg ├── openmv LICENSE.txt ├── qrcode_QQ_group.png ├── qrcode_Wechat_Official_Account.jpg ├── 关于pin map.md └── 固件烧录方法.txt /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /OpenMVX-BOM-淘宝链接.xlsx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/xxl1998/OpenMVX/aeaf14d0c05e32c259151823f827479fff56430e/OpenMVX-BOM-淘宝链接.xlsx -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # OpenMVX 2 | **a customized openmv camera,based on the openmv camera.** 3 | **now only STM32H743+OV7725 FPC version (openMV4)** 4 | 5 | ## license 6 | 7 | **OpenMVX is licensed under the GNU General Public Licence (GPL)V3.0** 8 | 9 | **注意，此repository下开源的所有文件使用GPL V3.0协议，如果你用了这里的文件，那么你也要开源你的设计（也必须使用GPL协议）** 10 | 11 | 个人定制版openmv，使用官方原版openmv4硬件文件修改而来，三次打样（修改两次）后实现全部功能，使用国内常用元件，保证都是淘宝容易买到的，并且简化一部分电路设计，去掉BTB接口，直接单板实现，使用FPC镜头，焊接个FPC座就行，免得焊BGA的感光元件，现在只有STM32H743VIT6+OV7725（FPC小镜头），一体化设计，兼容原版尺寸接口，去掉不必要的SWD接口，OV7725独立供电，大部分功能已验证过（包括摄像头、TF卡、串口、SPI屏幕、当然肯定有USB连接上位机），在电赛时也使用过，好几个月了没出过问题。 12 | 13 | 没有key，即“盗版 openmv”，除每次弹窗外不影响使用，固件使用DFU刷入，SWD是没有用的，所以去掉了。 14 | 给出原理图、PCB、PCB工程文件、集成封装库等硬件全部文件，Altium Designer 16格式（AD16）。 15 | （使用原版openmv二次修改而来，已包含原版openmv的license文件：master/openmv LICENSE.txt） 16 | 17 | ## 怎么烧固件： 18 | 19 | 我已经录制了烧录固件教程，每一步都有说明，视频链接： 20 | 21 | https://www.bilibili.com/video/BV1Gy4y1q7NB/ 22 | 23 | 4K分辨率，有字幕有链接 24 | 25 | ## 高频问题解答： 26 | 27 | ### 为什么MCU两颗LDO供电？ 28 | 29 | **习惯而已，一颗也行，OV7725也可以公用，整个PCB就一个3.3V的LDO也行，只要电流够用。** 30 | 31 | ### 是几层板？ 32 | 33 | **两层板常规工艺，走到哪都不用加钱的那种。**（客编我都给你放好了，下单掏5块钱就行） 34 | 35 | ### DFU烧录固件卡在66%？ 36 | 37 | **这不是个例，我用的是硬件版本Y的芯片烧录固件完全正常，硬件版本V的芯片出现此问题，原因尚不清楚。目前（2019年底以后）市面上基本没有Y版本的芯片了，解决办法由群友提供，群友在2020-3-18上传的PDF有详细教程，好几个群友已经DIY成功。** 38 | 39 | 烧录固件视频教程近期将更新，敬请期待 40 | 41 | ### 引出排针有个空脚？ 42 | 43 | **那是外部帧同步信号，BGA的OV7725有，FPC的OV7725没有这个引脚，为了与OpenMV官方版引脚兼容，此引脚悬空。** 44 | 45 | ### 元件在哪买？ 46 | 47 | **已更新了带淘宝链接的BOM，仅供参考，购买后果自行承担。摄像头搜索关键词“OV7725 FPC”，我用的是长度21mm的** 48 | 49 | ### 关于FPC座子的封装？ 50 | 51 | **我使用24pin FPC座的封装1号脚在右侧，而OV7725的1号脚在左侧，所以在Pin map里将引脚映射反向，这样引脚顺序就对了。（前提是FPC座是翻盖下接），直接打板是肯定没问题的。** 52 | 53 | **详细讲解请看：关于pin map.md** 54 | 55 | ## 预览PCB 56 | 57 | ![Image_text](./images/PCB截图.png) 58 | ![Image_text](./images/PCB%203D图top.png) 59 | ![Image_text](./images/PCB%203D图bottom.png) 60 | 61 | ## 实拍效果 62 | 63 | ![Image_text](./images/第二代%20TF卡成功.jpg) 64 | ![Image_text](./images/第三代%20bug改好.jpg) 65 | 66 | ## about 67 | 68 | **有任何技术问题，可加QQ群 923703530** 69 | 70 | **更多技术分享和作品开源分享，可关注微信公众号： 飞觞醉月** 71 | 72 | ![Image_text](./qrcode_Wechat_Official_Account.jpg) 73 | ![Image text](./qrcode_QQ_group.png) 74 | 75 | -------------------------------------------------------------------------------- /figures/OV7725_FPC.png: 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Agyeman 5 | 6 | Permission is hereby granted, free of charge, to any person obtaining a copy 7 | of this software and associated documentation files (the "Software"), to deal 8 | in the Software without restriction, including without limitation the rights 9 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 | copies of the Software, and to permit persons to whom the Software is 11 | furnished to do so, subject to the following conditions: 12 | 13 | The above copyright notice and this permission notice shall be included in 14 | all copies or substantial portions of the Software. 15 | 16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 | THE SOFTWARE 23 | -------------------------------------------------------------------------------- /qrcode_QQ_group.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/xxl1998/OpenMVX/aeaf14d0c05e32c259151823f827479fff56430e/qrcode_QQ_group.png -------------------------------------------------------------------------------- /qrcode_Wechat_Official_Account.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/xxl1998/OpenMVX/aeaf14d0c05e32c259151823f827479fff56430e/qrcode_Wechat_Official_Account.jpg -------------------------------------------------------------------------------- /关于pin map.md: -------------------------------------------------------------------------------- 1 | # 关于pin remap 2 | 3 | ## 起因 4 | 5 | 下面是两个从淘宝OV7725详情页拿到的引脚定义，请观察**OV7725的1号脚在哪边？** 6 | 7 | ![OV7725-FPC](figures/OV7725_FPC.png) 8 | 9 | ![OV7725-FPC1](figures/OV7725_FPC1.jpg) 10 | 11 | 在两个图片中，都有正视（摄像头向上，图左）、侧视（图中）、后视（图右） 12 | 13 | 标有引脚序号的都是后视图，并且在后视图中1号脚在右边 14 | 15 | 所以，OV7725在**正视图中，1号脚在左边** 16 | 17 | 下面再看我的FPC座子封装： 18 | 19 | ![image-20201025225515458](figures/image-20201025225515458.png) 20 | 21 | 请注意观察白色箭头处 22 | 23 | 在bottom layer，1号脚在左边，所以当正视时，FPC座子的1号脚在右边 24 | 25 | 刚好和OV7725的**引脚顺序相反** 26 | 27 | （注意这里是顺序相反，而不是仅有1和24反了，真的有人认为只有1和24） 28 | 29 | ## 解决办法 30 | 31 | 因为现有的封装的1号脚和OV7725图里的是反的（这代表从1到24都是反的，而不是只有1和24！！！！！！！！！！）所以我们要将所有引脚反向连接（而不是交换1和24），或者手动画一个新的FPC封装！ 32 | 33 | 我选择了**引脚反向连接** 34 | 35 | 也就是在pin map里面修改 36 | 37 | (pin map编辑：双击原理图中的OV7725，选择PCB封装，点击edit，弹出的窗口中右上角有pinmap按钮) 38 | 39 | 双击原理图中的OV7725，点击edit pins，出现这个窗口： 40 | 41 | ![image-20201025230045449](figures/image-20201025230045449.png) 42 | 43 | 你可以发现，我把1到24反过来对应了（**注意第一列和第四列**），也就是前面说的反向连接，解决了FPC封装1号引脚和OV7725不一样的问题，但也让我多花了n个小时用于向n个人解释n遍（所以又更新了这个文章） 44 | 45 | ## 验证结果 46 | 47 | 下面来验证这一做法是否有效， 48 | 49 | 下面两个图分别是我画的原理图库和OV7725规格书中的引脚定义， 50 | 51 | 请观察**二者是否一致（序号以及对应的名字）** 52 | 53 | ![image-20201025230230826](figures/image-20201025230230826.png) 54 | 55 | ![image-20201025230239753](figures/image-20201025230239753.png) 56 | 57 | 原理图检查无误，下面检查PCB， 58 | 59 | 由于**DCMI的连接是忽略低位信号线**，所以我们只判断顺序是否反了，不判断具体接线（PCB中只显示焊盘连接的net名字而不显示它的原理图的引脚的名字，比如原理图封装的AVDD实际在PCB中显示它连接的3V3_OV这个net） 60 | 61 | 二者都选择背面的视图 62 | 63 | 从背面看：OV7725左边24脚，应该是放了一堆数据线，在原理图中我们悬空了两个，剩下的数据线都连了，OV7725右边1号脚悬空，2号脚GND，3号脚名字SIO_D连接的是SDA 64 | 65 | 从背面看： 66 | 67 | ![image-20201025230441707](figures/image-20201025230441707.png) 68 | 69 | FPC左边1,2脚，悬空了，然后是一堆数据线，FPC右边1个悬空，1个GND，1个SDA 70 | 71 | 对比PCB和OV7725的规格书，二者1号脚位置不同，但接线却是对的，验证了pin map的有效性 72 | 73 | 同时我们也可以总结出，AD的pin map只改变net的连接，而不改变你在PCB中看到的引脚序号 74 | 75 | 最后还是那句话：不动手只看教程是学不会的 -------------------------------------------------------------------------------- /固件烧录方法.txt: -------------------------------------------------------------------------------- 1 | 1、 2 | DFU 3 | 手动操作软件，较复杂 4 | 详见： 5 | https://book.openmv.cc/firmware/upgrade.html#dfu升级 6 | 7 | 2、 8 | 连上位机，强行连接，选择“我的openmv变砖了”根据提示操作 9 | （其实也是DFU） 10 | 11 | 3、 12 | 使用jlink、stlink等编程器自带的软件如jflasher等直接把bin文件烧入（需要改硬件或烧完再焊上，不推荐，推荐DFU烧录一次后面上位机升级，想SWD debug的可把SWD加上） 13 | 14 | 15 | 飞觞醉月 2019-11-27 --------------------------------------------------------------------------------