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STM32F072B_DISCO Touch sample interrupt sample code

Question asked by holland MICHAEL on Oct 30, 2017

I run the touch sample interrupt sample code from STM32Cube_FW_F0_V1.9.0 on F072 DISCO board. According to readme.txt. It should turn on the each LED according to each touch key. But what I see is when start run, both LED4 and LED 5 are always on. No matter which touch key I touch, LED6(blue) will turn on. I can't find where the code is wrong, but apparently not doing it suppose to do. Could your guys double check and verify? Thanks!