S32K3 FlexIO SPI Clk Cs time control

[Vandarkholme]

hello , I'm using flexio emulate SPI, but there's a problem -> How to control flexio SPI's spitime like Lpspi? like clk2cs/ cs2cs

[RomanVR · Accepted solution]

Hi @Vandarkholme.

Unfortunately, the RTDs do not support to configure timing parameters for SPI protocol emulation with FlexIO. This limitation arises because the RTDs are restricted to use only 2 timers and 2 shift registers. One timer is dedicated to generate CS output signal and the other timer is used for the shift registers control and the SCK generation. In this way, there is no control logic to adjust the timing parameters to generate specific delays neither a register to modify the timers.

Please let me know if you have more doubts.

- RomanVR.