SPI tegra bug when communicating to more than one peripheral


I need to reopen SPI failure when multiple perihperals are using the bus, as the bug persists.
What we learned so far:

  • higher spi frequency reduces the chance of bug manifesting, but it only postpones the bug
  • additional locks also help, but the bug is still visible, only less frequent
  • when the bug occurs, it also causes the device to reboot due to some watchdog firing, which we still haven’t identified

What kind of information would you need to address this spi issue?

Kind regards,


Thanks for reporting this issue, I have forwarded this issue to internal team, will update to after clarified.