Wilson
Wilson
Hello, I did find this problem recently, which may be caused by the long reset time of low level. Try to reduce the low level delay time (
Each pixel is one bit, So byte alignment is required. This coordinate orientation is designed to fit the GUI, and you can change the display orientation as appropriate.
Maybe the kernel update made the identification method invalid, which we will check later.
The description of this register is vague. This is the description of the IC supplier: 
This is another type. Official C language version: https://github.com/waveshare/IT8951-ePaper The Python version of GregDMeyer: https://github.com/GregDMeyer/IT8951
你好，你的理论预期是对的，直接运行我们示例程序也应该是有黑白红三色显示的，如果是购买的我司的屏幕你可以联系我们销售进行售后服务。 如果不是我们的产品我推测可能是某些寄存器默认值不同，而我们程序没有重新写值直接使用的OTP设置导致的
Hi @lordpengwin I don't understand 'bad state', module_exit() simply runs cleanup() on a few necessary pins.
There is no inverse if you follow the default Settings(The default is FPC on top), and in the program is easy to rotate. So we don't have a strict distinction...
@KKoovalsky , Hello, I don't quite understand what you mean, could you show me the schematic diagram?
Okay, got it. Several registers need to be modified and i need to run some tests.