Hi,I am trying to use Host Negotiation Protocol on STM32 boards.Two boards are connected together stm32f4-discovery (A-device) and stm32f429i-disc1 (B-Device). VBUS sensing, HNPCAP is enabled at both side.DHNPEN bit in GOTGCTL register is enabled aft...
Posted on July 06, 2018 at 09:56 Hi guys, I have a nucleo board of a STM32L4 and I'm trying to test the Power Consumption in the different Low Power Modes. I read the examplePWR_EnterStopMode and viewed a few discussion in the community for...
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 ...
