I2C NAK stopping SysTick

[ben239955_stm1]

Posted on July 22, 2015 at 07:35

Hi there,

I'm trying to do a blocking I2C read in another interrupt. If I receive a NAK the HAL seems to crash (I'm seeing

uwTick

stop). Both the I2C interrupt and the interrupt I'm doing the read from have a lower (higher numerically) priority than the system tick timer. Does anyone know why this could be happening? Thanks! Ben #stm32f7 #systick