handzic.dirk

STM32H743 COMP

Discussion created by handzic.dirk on May 25, 2018

I am using COMP channel 1 and 2 with INMSEL set to 0x04 in COMP->CFGR1 and to 0x05 in COMP->CFGR2 in order to use the DAC output as reference to detect external analog voltage thresholds. I am using COMP_IRQHandler() to handle the interrupts once threshold are reached.

 

PB1 is configured as analog input for ADC1 channel 5.

 

However a voltage applied to PB1 will generate interrupts for COMP_IRQHandler(), it seems that the INMSEL multiplexers are not working as expected! I have tried to configure PB1 as digital input as well but that does not help either.

 

Regards

Dirk

 

P.S. srms.ioc applies to this problem too. Same board as all other STM32H743 problems.D.S.

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