Has anyone had any idea about how to adjust the enable lead time for the SPI bus on Kinetis KL25 Freedom Board? We have to enlarge the enable lead time in order to activate the SPI device correctly. Any suggestion is greatly appreciated!
Thanks! I got it. I removed the SS pin in the SPI component and use a GPIO to run as a SS pin. In that case, I tried to estimate the potential delay time required to drive the SS line. Do you think there is a potential problem if I used this way?
Using a GPIO pin to emulate SPI SS pin signal is a good solution way. I also see many customers use that way. There will bring no problem about SPI communication.
KL25 without register to add delay to chip select to SCK. Kinetis K series product use DSPI module, which supports set delay between SPI CS to SCK signal.
