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ittokor · 2014-10-16

Posted on October 16, 2014 at 12:25Hello all,I'm attempting to talk to two devices, a barometer (MS5611) and a magnetometer (HMC5883L), using I2C with DMA on an STM32F4. The barometer runs on a timer (10ms), while the magnetometer runs through an in...

ittokor · 2014-11-14

Posted on November 14, 2014 at 16:12graffiti, have you had any success getting to the root of the issue?

ittokor · 2014-10-28

Posted on October 28, 2014 at 14:59Then yes, I do believe that the error only occurs after NACK reception so you may be onto something. Just note that it occurs after a NACK reception from either slave (this makes sense since the master is in charge...

ittokor · 2014-10-27

Posted on October 27, 2014 at 16:11By ''NACK reception'' do you mean the slave not acknowledging? If so, it has been some time since I last tested this, but I am almost positive that for me it occurs even if the slave has previously acknowledged me....

ittokor · 2014-10-27

Posted on October 27, 2014 at 12:48Nice catch!Any clue what is causing it not to be reset? What is your pull-up resistor configuration?Thanks for the solution, it helps a lot.

ittokor · 2014-10-27

Posted on October 27, 2014 at 11:09Any help would be greatly appreciated. I can provide more information as necessary.

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STM32F4xx: I2C multiple slaves, very strange behavior

Re: STM32F4xx: I2C multiple slaves, very strange behavior

Re: STM32F4xx: I2C multiple slaves, very strange behavior

Re: STM32F4xx: I2C multiple slaves, very strange behavior

Re: STM32F4xx: I2C multiple slaves, very strange behavior

Re: STM32F4xx: I2C multiple slaves, very strange behavior