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Hi,I am connecting ESP32 with STM32G474RET6 Nucleo board via SPI. I have configured SPI in DMA mode to transfer data. With NSS pin enabled for chip select I can see the pin remains low always during transmission of data and also in idle. So that I co...
My project is using a GPIO to enable/disable a buzzer on a software timer. This boils down to a call to HAL_GPIO_WritePin(), which does GPIOx->BSRR = pinmask (0x80 in this case) to enable the buzzer. This works as expected most of the time. There ar...
Hi, The SPI communication between an ESP(Master) and the STM(Slave) is failing when i configure the SPI clock at 10MHz.I have STM32F429ZIT6 DISC1 board and i have used SPI3 as slave, the SPI3 is on the APB1 bus which is configured at 45MHz PCLK.The c...
Hello!I just received some custom PCBs with the STM32H747BIT6 MCU, but I’m having trouble connecting to it. I’m using a J-Link V12 and initially tried to establish the connection with jlinkexe. It correctly detects the voltage, but when attempting t...
The pins for USART3 are listed as PD9 and PD8; however, these are not available on the microcontroller.What are the correct pins? Similar to posts:https://community.st.com/t5/stm32-mcus-products/stm32h5-bootloader-uses-usart-pins-that-do-not-match-ro...
Hello - I recently took a working design and upgraded from the STM32L4 to the STM32L5. I'm having a major issue getting the i2c bus to work properly.I have SCL (PB11) and SDA (PB10) configured.I have pull-up resistors (4.7 kohm) on each of SDA/SCL. I...
I am designing a PCB that uses the STM32L433RC.I just checked the pin out of the PCB footprint with the datasheet, but then got confused as there are two different pin outs for what seems to be the same device.The footprint I am using matches figure ...
Hi,I would like to implement a USB -> SPI flash storage solution. There are several guides and examples already available to do so (also the tinyUSB ones), so I think that should not be an issue.However, due to physical constraints of my project, I d...
I'm getting unexpected signal in PWM output on timer1 channels.Signal screenshots are attached.getting unexpected signal (around 500nS) in between PWM duty cycle pulse. Below is timer configuration : NOTE*: CCR values changes with software as require...
For my project I'm using an STM32F743VIT6 with ADC1 and ADC2 in 16-bit differential mode.In the reference manual (RM0433) §25.4.7 it is written:Converted value = ADC_Full_Scale / 2 x [1 + (VINP-VINN)/VREF+].For 16 bits, ADC_Full_Scale is 0xFFFF. What...
