Lost some data when send to PC with USB.

[BLu.1]

HI all,

I need a sampling rate of 1K to collect the analog voltage.

My chip is :STM32F103C8T6.

I use Timer2's interrupt to enable collect and send data, after send disable.

I use a plus at 100Hz to verify, find it will lost some data:

Thanks

Boone

[BLu.1]

Where are the experts?

[Tesla DeLorean]

Its a forum, there's no guarantee of any response.

You kind of made a statement rather than asked a question.

Are the 100 Hz and 1000 Hz synchronous ? Or do they come from two independent sources?