In one post, you have removed LL ---> LOAD instruction?
No, I moved it.
If I'd removed it, then the line would never toggle - even a noob like you should have realised that.
For the last 39 years I was paid by the companies and institutions to write instructions as many lines as possible; because, those lines were meant for learning purposes and not for selling. It is very very difficult to get rid of the years' old tradition
And yet, somehow, you couldn't find it in yourself to go that extra furlong, and name the pins.(three more lines of code).
I wonder what instructional value you found in that.
For MAX7219, it is LOAD. According to data sheets, during the clocking phase of the data, the state of LOAD is irrelevant
I'm looking at Maxim's 7219/7221 datasheet, (Figure 1, page 6) and the /CS line most definitely goes LOW before CLK goes HIGH, with a minimum of 25ns (ICSS)
Nothing at all irrelevant that I can see.