Posted on October 13, 2015 at 19:04> Question 1: Where i dont know if to connect the displays chip select (/CS1) to SP1_NSS or to standart Output??
I did not read the display's datasheet, but if you need to change its level during (or before/after) communication, any pin set to output. Even if you connect it to a pin which can be used as SPI_NSS, you will need to handle it as a GPIO Output - the functionality of NSS in Master mode is rather crippled in the STM32 SPI implementation - read the RM.
> Question 2: Is there something missing or not correct for a simple instruction transmission?
I don't know, but you should learn that yourself by observing the waveforms on the pins using an oscilloscope and/or a logic analyzer and comparing them to the display's datasheet.
> Question 3: Settings suggestions and explainations? NSS_Soft or Hard?
Either, hard, turned to output (SSM = 0, SSOE = 1) and not connected in the AF matrix (as its permamently low after the first transition, i.e. useless); or soft, with SSI set (SSM=1, SSI=1).
> Question 4: /CS1 as Output or SPI1_NSS???
Wasn't that question 1?
JW
