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STM32L4 LSE 1Hz PPS

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...

Setting RTC Alarm For A Specific Period From Now

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 ...

ISeed by Senior
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  • 4 replies
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Injected ADC conversion on STM32F303 not work correctly

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...

MarcoF by Associate
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  • 3 replies
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HSE clock hardware design clarification

Hello everyone,I am designing a board using STM32L496RE and I'm currently in the HSE clock design phase.I have chosen a 16MHz crystal with CL 18pF. I have been following the AN2867 (https://www.st.com/content/ccc/resource/technical/document/applicati...

CProt by Associate
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  • 4 replies
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TIM_ETR_SetConfig() static or not?

Hello,when generating a STM32CubeMX project from within Keil µVision, in stm32f4xx_hal_tim.c (STM32F4xx_DFP/2.13.0) the function TIM_ETR_SetConfig is defined as static in the .c file and none-static in the corresponding .h file, so i need to change t...

TBirk by Associate
  • 358 Views
  • 0 replies
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STM32L151RC GPIO BRR register missing?

Hi,to clear bit 7 in port C I used a write to the BRR register: GPIOC->BRR = 0x00000080. Did not clear bit 7. A write to BSRR works: GPIOC->BSRR = 0x00800000. Is the BRR register not implemented (seems kind of redundant anyway with having BSRR)...

hugo1 by Associate II
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  • 6 replies
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STM32L073 system information block address map

I trying to find information on the system information block of the stm32l073rb, specifically the address of the vrefint calibration value. I've looked in the ref manual, the data sheet and the L0 HAL docs and have come up empty. Please show me how s...

ETone by Associate III
  • 640 Views
  • 4 replies
  • 0 kudos