STM32 MCUs Products

How to NUCLEO64, UART and Printf output?

Hello,I want to use UART2 on a NUCLEO-L073RZ for printf output but cannotget it to work for the life of me, please help.Context:In this scenario, I need the UART2 output direct from the PA2 / PA3pins on the ST Morpho header (CN10), in other words, no...

Need to get specific number of samples from ADC, what flag to use to indicate when arraystoring samples is full?

Hello all,I need to store 6000 incoming samples from the ADC, analyze these 6000 samples and then store 6000 new samples in the same location and I need to do this repeatedly. I am using HAL_ADC_Start_DMA function to start the channel and I want to u...

STM32L4R9I-DISCO demo projects compilation fails

Hello guys.I dont want to complain, but I think its not normal trying to spend 1 week to compile Demo projects for my STM32L4R9I-DISCO board. I have the github repo below, I've added StemWin libs which are not included due to license problems, but I ...

Hi, i am new to stm32 and i got the project to rotate stepper motor using stepper driver .

i am using stm32f103 controller with opto -circuit to rotate my motor . But my motor is rotating only in forward direction even if i make my direction pin SET or RESET . BUT i need to make my motor to rotate in both forward and reverse direction. Ca...

DMA CCR1 CCR2 conflict I can have signal on PB6 or PB7 but not both on one time. by changing CCR1 and CCR2 arrangement. CCR1, CCR1 =signal on PB6 CCR1, CCR2 = signal on PB7 CCR2, CCR2 = signal on PB7 CCR2, CCR1 = signal on PB6

Can the STM32 Power Shield (LPM01A) be triggered on AND off?

The X-NUCLEO-LPM01A Power Shield can be triggered by the target device to start acquisition, using the D7 pin. Can it also be triggered to stop acquisition?Also, my power shield is currently running v1.0.1. The latest version of the firmware is 1.0.6...

Using SWO with built-in stlink on nucleo H743ZI2 board

I'm having trouble getting SWO to work using openocd on the NUCLEO-H743ZI2 board. I've removed SB26 as per the user manual for this board. This should leave the SWO pin (PB3) connected to the stlink SWO, meaning I can get ITM output over the usb conn...

STM32H7xx - PLL input frequency range settings

Hello,this is a description of PLL settings from a reference manal00: The PLL1 input (ref1_ck) clock range frequency is between 1 and 2 MHz (default after reset)01: The PLL1 input (ref1_ck) clock range frequency is between 2 and 4 MHz10: The PLL1 inp...

Help setting up a comparator and counter to count frequency of 0-3.3V square wave input

HelloI am using a STM32L476VG. I want to use pin PC4 (named 'comp_negative') and PC5 (named 'comp_positve) for comparator inputs. Reading through 'stm32l4xx_hal_comp.c' it gives some idea how to set this up. I have also seen someone else has had a si...