【Take Care】The differences between Nezha and Raspberry Pi
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The D1 Nehza and noticedthat despite the Nehza having connectors that appear identical to the Raspberry Pi, they actually are not 100% compatible.
The GPIO header is mostly compatible. Some of the higher numbered pins are listed in the datasheet as NC, meaning that some GPIOI are lacking. Furthermore, some of the secondary peripheral functions seem different.
The Display ribbon cable connector is not physically compatible. It is still a MIPI-DSI connection, but the pinout is different. A adapter will be needed to use it with the Raspberry Pi Display.
The "Camera" ribbon cable connector is not compatible at all. On the Nehza it is not actually a camera connector, but instead analog and digital connections for a microphone breakout board. There is no MIPI-CSI capability on the connector (from what I can tell, the only MIPI-CSI connection shares pins with the RGMII connection, which is used for ethernet)
The 3.5mm audio jack is not entirely compatible. There is not an analog video out connection, instead there is a microphone input.
Be sure to check the schematics (I found them on the linux-sunix wiki), before trying to use any Raspberry Pi cessories to be sure you will not break anything.—Copied From Gabe R .Thank you for pointing out !
哪吒D1开发板虽然多数引脚及外设接口看起来与树莓派相同,但使用的过程中仍然有需要注意的与树莓派不兼容的地方。
- MIPI接口屏幕不兼容,其中IO序列不兼容,如果需要使用树莓派屏幕,则需要外加转接板才能使用。
- GPIO名称不同,哪吒GPIO虽然有一个IO扩展芯片,但其芯片本身印出来的引脚比较少。使用时需要参考哪吒原理图避坑。
- 树莓派的相机接口位置的MIPI接口不为相机接口,不带mipi功能,此接口为麦克风与按键板扩展接口。
- 3.5MM耳机接口为音源输出与麦克风输入,无模拟视频AV信号输出。
在使用树莓派的模块之前,一定要对照原理图检查确保其可用引脚相互不冲突,与功能正常,以保不会烧毁任何模块。
- 转自开发者Gabe R ,感谢指出提醒 !
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Nehza or Nezha
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