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Original question:

用软件触发一次性TZ保护，然后再用软件清除不了保护标志位

TMS320F28377D: TZ one shot 错误清除

JiaWang QIN
Prodigy 30 points

Part Number: TMS320F28377D

在28377 while中用以下语句清除TZ错误标志位的时候无法一遍清除，需要执行两遍以上才能将对应的TZFLG成功清零。

EALLOW;
EPwm1Regs.TZCLR.bit.OST = 1;
EPwm2Regs.TZCLR.bit.OST = 1;
EPwm3Regs.TZCLR.bit.OST = 1;
EPwm4Regs.TZCLR.bit.OST = 1;
EPwm5Regs.TZCLR.bit.OST = 1;
EPwm6Regs.TZCLR.bit.OST = 1;
EPwm7Regs.TZCLR.bit.OST = 1;
EPwm8Regs.TZCLR.bit.OST = 1;
EDIS;