Board-to-Board SPI communication problem and other options

22 Mar 2018

Hi, I have two boards: (1) NXP Kinetis K64F (2) Ublox C027

Both running the latest mbed, I need to have communication between them.

What i need is:

  • 10Mbps or close to it transfer rate
  • Can't use RJ45 jack (used for other things)

I tried SPI but I encountered weird issues with communication (Primarily I hit a 8 byte limit on the slave reading data from master), Setting a delay on the sending solves it. so that probably means that the kinetis is sending faster than the ublox can receive. Unfortunately, delay won't cut it.

If someone had success with this issue I'd like to hear it.

10 Apr 2018

Is this English?