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I have a CAN-bus network and there is one host and 2 "slaves", all implemented inside STM32F446 micrcontrollers. To save power, I put them into Stop Mode when they're idle. In order to wake up from Stop Mode, I subscribe to external interrupt on CAN ...
I am working with the STM32F446 microcontroller and I would like to create a versatile timer function using the RTC:typedef void (*timerCallback_t)();void scheduleOneTimerEvent(uint32_t timeoutMs, timerCallback_t timerCallback);I am considering using...
Is it possible to do this? I need to shift PWM2 by 180 degrees from PWM1. On a test board I am doing this with two timers, with the second timer picking up the count from the first and adding period/2. The current board will not allow this.I hope it ...
I am trying to build a system that does not use interrupts at all. This due to hard realtime requirments. Now I hat a look at the HAL code and as far as I can see even HAL_I2C_DMA functions seem to rely on IRQ, correct?Can HAL I2C DMA functions be us...
I am having an issue with triggering interrupts with anything other than a button (that sinks to ground when pressed) with an external pullup on port D. I have another line (PA0) on my board that gets pulled low on USB plug-in and uses in internal (r...
Hey, I'm kinda new with the STM32, and i am trying to work with the sound board, CCA02M1, but i am having an issue where i cant get any sound from the board. I was wondering if anyone had this same issue. i should have all the correct drivers and i a...
Hi,is it possible to use the L4's LSE in bypass mode, driven by a 1Hz signal?I have a set of L4 chips on a bus and would like to feed them a 1Hz / PPS signal from a precise / temperature-compensated clock (and then use the LSE with /1 prescaler for t...
Hello,I would like to set an RTC alarm to wake the system, let's say, 5 seconds from current time.The example applications show how to set an alarm for a specific date+time in the future, but I want to set it for X milliseconds from current time.One ...
Hello,in my project I have to acquire 2 channels in injected mode and 7 channels in regular mode on ADC1. The first injected channel is not converted correctly, sometimes it seems to be blocked for several samples and then it starts working again. If...
Hi,I am using the OCxRef-clear + comparator to do cycle-by-cycle current regulation and it is working as intended, limiting the delivered duty-cycle despite the value set in software, but I also need to know in software if this is happening and know ...
