hello：
i use timer1 to get a pwm waveform，when i use RTT to test it，the waveform is ok，but when i take out the RTT，and Remove the battery and put on the battery again to reset the device，and then i find that the waveform is wrong。
my code is make the 7 waveform recurring，the first waveform run 5 seconds，and then the second waveform run 5 seconds，and then the third waveform run 5 seconds，and then the fourth waveform run 5seconds， and then the fifth waveform run 5 seconds，and then the sixth waveform run 5 seconds ， and then the seventh waveform run 5 seconds，，，，and cycle。
TEST:
1、when i use swdio，clk，and open the RTT window，and then use Logic analyzer to get the waveform，every one second i refresh it，the waveform is what i want，its ok。
2、when i take out the RTT，and Remove the battery and put on the battery again to reset the device，and then i find that the waveform is wrong。for example，i need one waveform for 5 seconds（Assuming that A third of the high level, two-thirds of the low level），The results may be that correct waveform for 3 seconds，and then error waveform for 1 second，and then correct waveform for 1 second。（About the error waveform： A third of the low level, two-thirds of the high level。that means the Duty Level flip）
