SPRAD44 june   2023 AM6442

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Required Hardware and Software
  6. 3AM6442 RTI Watchdog Modules
    1. 3.1 How the RTI Works in the U-Boot?
  7. 4About Those Six Commands in the U-Boot
  8. 5How to Turn These Commands Into C Code?
    1. 5.1 Entire RTI Patch for This Application Note
  9. 6References

3 AM6442 RTI Watchdog Modules

According to the RTI Features section in the AM64x/AM243x Technical Reference Manual, the RTI for those key points are as follows:

  • It is a software reset
  • There are seven RTI modules on AM642x
  • It is a configurable window timer watchdog
  • Any attempt to service the watchdog outside this time window, or a failure to service the watchdog in this time window, causes the watchdog to generate either a reset or a non-maskable interrupt to the CPU.