STM32 MCUs Products

I'm working on ADC (12 bit) in NUCLEO-L4P5ZG board. In that the ADC value is correctly showing Upto ADC_IN_10 channel, afterwards it is showing random values for channel 11-15 what might be the reason?

Optimizing ADC DMA transfert and IRQ latency

Hello,I have the following config:STM32H743- Core 400MHz- AXI/AHB 200MHz- ADC clocked by the PLL at 144MHz, then divided by 4 (async mode) => 36MHz- TIM15 trigering ADC conversionsADC1 in scan mode converting 2 channels in scan mode. Data sent to SRA...

Implementation of a STM32 in transparent mode to flash another UART-connected STM32. What UART configurations and timing should be setting to implement this feature in STM32 in transparent mode?

I have one Master STM32 connected over UART to a Linux MPU and also connected over another UART to a Slave STM32.My purpose is to set the Slave STM32 in bootloader and flash from the MPU the application in the Slave STM32, the Master STM32 is in the ...

Using STM32H743 I2C, with CR2 RELOAD and NBYTES=0 gives TC interrupt instead of TCR.

I have to port an existing I2C API to the STM32H743 using the LL drivers. One of the functions must perform the START, issue the address of the slave, then return control. Then another function will send the data.The fact is that when I initialize th...

Quadrature Decoder Sometimes Fails to Reload When Passing Through 0 on STM32L151

I'm seeing a strange issue with the Quadrature Decoder functionality with TIM3 and TIM4 on STM32L151 (also seeing the same issue on a NUCLEO-L152RE). Sometimes when the count decrements to zero, the counter doesn't reload. Sometimes it does, picking ...

How to read OBD CAN data using STM32f103 ? here is reference https://github.com/ARoozitalab/ELM327-OBDII-STM32 code i modified

using the ref code : https://github.com/ARoozitalab/ELM327-OBDII-STM32 , Succesfully compiled & flashes to Stm32f103RC using keil , Could someone help to debug this code, As i checked, in blu.c file, In BLE_recieve, there is usart_recieve function, ...

HAL_FMPI2C_Mem_Read_IT() in library "stm32f4xx_hal_fmpi2c.c" claims to be "Read an amount of data in non-blocking mode with Interrupt", yet behaves as a blocking call. Where am I going wrong?

My understanding of a non-blocking function is that the function will return immediately, and it is up to you to use a callback or other method to collect the data. With FreeRTOS it's not difficult.Yet HAL_FMPI2C_Mem_Read_IT() seems to hang around an...

[ADC] VddA is smaller than the Vref can result in inaccurate a/d conversion?

hello,I have question about adc on stm32.If Vref is connected to Vdd, VddA is slightly smaller than Vdd, ADC might be inaccurate?I just became to konw that our hw-engineer did mistook on connections on stm32.( I found that 1.he connected vdd and vref...

Reference value and sequence sampling in STM32U585. ADC problem?

Hello everyone,I'm having some trouble using the ADC in the STM32U585. I developed my own PCB where the MCU's VDD and VDDA are connected to 1.8V. I need to measure about ten analog signals. I have two main problems. First:VREF+ = VDDA = VDD = 1.8V. W...