STM32 MCUs Products

How to program an STM32H73x to put it in low power, that it consumes as little as possible, and that it can wake up with a GPIO?

I am using an STM32H735G-DK board to do my tests. My goal is to toggle a LED on PC2 every time I wake up the MPU when I put PG5 to ground. Once the LED is toggled, I want the MPU to go to the lowest possible power consumption. Does anyone have an exa...

Hello, I have got question: why generally 16 bit microcontrollers are not popular like 8 or 32 bit?

Order of ADC calibration step

The errata sheet of the STM32L476VG states: I wonder if the order of the ADC calibration step is important. I was performing the following steps:1- Set ADC clock source2- Enable ADC clock3- Disable deep power mode (ADC1 and ADC3)4- Enable ADC voltage...

HI, I use cubeIDE. I was trying to use NVIC functions such as NVIC_SetPriority(EXTI1_IRQn,1), but the function and EXTI1_IRQn are not recognized, and it gives me an error. is there is a header file that I should add? Thanks very much.

I am trying to write the drivers for stm32f401 nucleus without using HAL and by writing to registers directly. when I created the project I choose the target project to be empty instead of STM32Cube To make sure I do not add HAL drivers. I know there...

weird problem nand flash hal function

Hi My code stops after i use the HAL_NAND_Read_ID function, Also the debugger stops working and i can see no errors to solve.Thanks for helping me.

What is the proper way to send hex characters using HAL_SPI_Transmit?

New to STM32s and somewhat new to C and I need a bit of advice.I am trying to send different number of hex characters to the SPI interface.I have used HAL_SPI_Transmit (&hspi1, (0xB8, 0x03, 0x00),3, 100);however, I get errors. I cannot use variables...

Voltage with DACs unstable

I'm using the DACs of STM32F303K8. The max voltage of the DAC1 is 3.3V but the second is 3V.I don't find any explanation for it and it looks like also quite strange.​PS. To my nucleo is not. Connected to any Vref. It is necessary?​Anyone can help me?

STM32H723ZGT6 accidental Vcore overvoltage

Hello,I designed a custom board with an STM32H723ZGT6.It worked fine, then, long story short, this happened:I accidentally connected the VCAP pins (Vcore voltage) to 3.3V, then switched the board on. After about 2...3 seconds I realised something is ...

Modbus communication Rs485 DELTA HMI inverted received data?

I want to communicate with delta HMI (slave) and STM32 as master device.Now master(HMI) send data to slave(laptop) I received inverted data. ​Slave id is 01 but I received ​7F from hmi​It works well with non inverted data.​​So how can I communicate b...

Need for Speed Using STM32 SPI with DMA to W5500.

I am porting the code from ATMega128 to STM32F103 for faster throughput to WIZNET W5500 using the WebServer.C for ATMega128. I am using the HAL coding as I am new to STM32. While the throughput is faster than the ATMega128 but I need more speed. Cha...