Your original question:
If you do a software reset and set the shdn-bit to 0, are all controll registers resetted then (set to default
values) ? because thats not written in the datasheet.
What you say now:
And i'm not talking anymore about the shdn-bit but about the init-bit.
You've already said that your code isn't working so...
And I have a second code for two matrix, where I just wanna understand the logic
...makes no sense. 2 chips running is virtually the same as 1 chip running...they both get the same code.
Also, if you can't get 1 chip to work, what makes you think that understanding 2 chips working will make it better?
the CS is 0x00, so the leds won't light!
This statement is true...you have to set it between 1 and 255 to make the LEDs light up.
Both codes are yours which you posted here.
My code runs perfectly on my hardware as shown by various videos I've posted.
If you have EXACTLY the same hardware and use my code it will work perfectly.
If you don't...then it's no wonder it won't work.
If you modified the code to work on your hardware, then it is YOUR code that doen't work.
My hardware is working for sure, I measured each pass.
What did you measure and what do you mean by a 'pass'?
No wonder I am confused...