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RM0432 - HSITRIM default value might be wrong?

In the reference manual for STM32L4+ (RM0432), it states that the default value for HSITRIM[6:0] is 16, which seems to be the default for MCUs that have 5 bits allocated for the trimming value, not 7. The reset value is correct, but I suppose it shou...

STM32L4-HSITRIM.png

board power consumption (L0, v3pwr, nucleo stm32l053r8)

Questions are at the endI did some measurements with nucleo stm32l053r8, stlinkv2 cut off, led3 removed power supply form v3pwr via3.3V cn6 pin4GND cn6 pin6Tools used stm cubemonitor power v1.2.1 & stlinkv3pwr multimeter (should still count as factor...

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_richard by Associate III
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  • 3 replies
  • 0 kudos

Resolved! STM32G4 series - I2C2 SDA and SMBA in datasheet switched?

I just noticed the following:In the datasheets for the G473 and G483 the pin table and alternate function table disagree which pin has the I2C2_SMBA and I2C2_SDA function.The pin table claims PA10 is I2C2_SMBA and PA8 is I2C2_SDA. The alternate funct...

AF_table.png pin_1.png pin_2.png
Loebl by Associate II
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  • 4 replies
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I2C Slave interrupt mode not behaving as expected

Hi All,I need some help with setting up a I2C slave on a STM32L422 chip. I have tried following the example: STM32Cube_FW_L4_V1.18.0/ NUCLEO-L412RB-P/examples/I2C_TwoBoards_ComIT but it doesn't seem to make sense to me. I realize it is not exactly th...

IR TRANSMITTER

I was wondering if I could find any library for simulating IR signals with an STM32 microcontroller. I couldn't find any library for this purpose. While I did come across some work done by Controllers Tech on receiving IR signals from a re...

skuma.8 by Associate III
  • 1358 Views
  • 3 replies
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Resolved! Dual bank execution from Bank2 (STM32L071)

Hi,According to some of the on-the-fly firmware update documents, update is done with the following steps:- program the new firmware to Bank2- set BFB2 bit to start executing from Bank2- while in Bank2, copy the code from active Bank2 to Bank1- reset...

zoranr_0-1692304046755.png
zoranr by Associate II
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  • 3 replies
  • 1 kudos

Resolved! Timer waking from Sleep mode

MCU is writing data to ext flash once every 15 minute. I have set Timer in interrupt mode with one minute callback and incrementing the flag. In main while loop, the flag is being check . Once flag has reached 15, the MCU writes data to ext flash and...

Nico3 by Senior
  • 2726 Views
  • 9 replies
  • 4 kudos

STM32G474 FDCAN BitTiming Register values?

Hello All,I got Classic CAN running on the FDCAN3 module of STM32G474CE device using MXCube and other example projects for STM32G474 devices.Problem is, all these example codes have a fixed baud rate of 1Mbps. My application requires thebaud rate be...

ma.alam9 by Associate III
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  • 3 replies
  • 2 kudos

Resolved! Reference manual typo.

Hello,There's a small typo in the STM32H750VB reference manual (RM0433 Rev 8).Page 545, GPIO alternate function high register (GPIOx_AFRH)Address offset: 0x2 : Should be 0x24 (confirmed by the GPIO register map).Have a nice day, thanks for the very e...

Briztal by Associate
  • 579 Views
  • 1 replies
  • 1 kudos