My customer use the TPS65381 supply the TMS570,the TPS65381 NRST pin connect to the TMS570 nPORRST pin,in program they use SPI to feed the watchdog, when the watchdog configuration is correct, they can work properly.
But there will be the following questions:
they want to upgrade the program of the TMS570 by JTAG,during the download time,there is no SPI signal to feed the watchdog,and the TPS65381 NRST pin reset the Tms570.the program could not be download in the Tms570.This seems to be in a conflict state. Has anyone ever had a similar problem ?