STM32 MCUs Products

How to send float values through serial com?

Not able to receive the data when I'm using HAL_UART_Receive_DMA and HAL_UART_RxCpltCallback

I have STM32H745 Discovery Board. https://community.st.com/s/article/FAQ-DMA-is-not-working-on-STM32H7-devicesI have tried all the solutions which provided in the above link but nothing is worked for me. please help me out on this.

I2C Circular mode tx

Hello. I'm trying to set I2C on the stm32l052 processor to send data continuously in circular mode. It sends once and then stops. The code appears below.

Code reset with message "Tue Apr 19, 2022 10:21:53: The stack pointer for stack 'CSTACK' (currently 0x2002FFE8) is outside the stack range (0x2002FFF8 to 0x20030000)"

I was debugging some code in STM32F4 controller. I build and flash some code related to DMA, During the debugging process the code is getting reset.Debug log is attached belowTue Apr 19, 2022 10:21:53: The stack pointer for stack 'CSTACK' (currently ...

To design STM32F051 as Slave.

To design STM32F051 as Slave.When receive the data from Mater, the STM32F051(Slave) can return data to the Master.Current design：(1) After the MCU is initialized, it will call HAL_I2C_Slave_Receive_IT() to set the I2C interrupt to the receiving stat...

How to fix ST-Link Nucleo board unable to connect, where the target is not found and the st-link is showing chipid 0x0000

Hello I ordered two NUCLEO boards, to start some projects on the ST32G03 platform. I was using the board with out an issue and connected to am Ubuntu 20.04 sys, updated the firmware on both and now one is working and the other is not, here is an outp...

STM32F429's I2C cannot send data after calling HAL_I2C_Master_Transmit_DMA, Then both the SDA and SCL switch high level to low? it always return HAL_I2C_STATE_BUSY_TX.

HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) { if(hi2c->State == HAL_I2C_STATE_READY) { if((pData == NULL) || (Size == 0)) { return HAL_ERROR; }   ...

Has anyone been able to transfer IOT data from the B-L462E-CELL1 board to an IOT Website?

I have spent the past week trying the demonstration projects and demonstration binaries for the B-L462E-CELL1 board. I have been able to compile and down load a number projects but none of them will connect to the Truphone website using the embedded ...