STM32 MCUs Products

STM32 USB HID host with CP2110 - problems with modyfing the code

Posted on April 30, 2018 at 23:15 Hi, I have a project where I need to communicate with CP2110 via USB (medical device having this interface). I am prototyping the application on STM32F746G-DISCO. I have started by running the Application exam...

how to terminate I2C master-receive transaction?

target CPU: STM32F427IGI set up STM32F427IG as master receiver via DMA. I wait on "DMA_GetFlagStatus(I2Cx_DMA_STREAM_RX, I2Cx_RX_DMA_TCFLAG" to figure out if I received what was sent.After running for 20 minutes or so, I2Cx_RX_DMA_TCFLAG flag does n...

Problem with HRTIM Nucleo-H743ZI2 Frequency of timer should be 480 MHz but it is still 240MHz

Hi I want to use the high resolution timer for a 10 bit resolution PWM output. Even the ioc file tells me that it turns on 480 MHz but it doesn't.I tested with a digital storage Oscilloscope the output of the PWMI used the basic configuration so i ha...

ADC conversion stops working with timer interrupt

Hi, I am new on mcus and STM32 board. Now I am stuck on a test project. I have a STM32F56ZG nucleo board and want to sample values from 4 ADC inputs; process them and then output the result on DAC channel 1. I am using DMA triggered by timer 6. The...

confusing about the regiser SYSCFG_CFGR3?

mcu:STM32L071RBTxquestions in the reference manual ：9.2.3 Reference control and status register (SYSCFG_CFGR3)Bit 8 ENBUF_VREFINT_ADC: VREFINT reference for ADC enable bitThis bit is set and cleared by software (only if REF_LOCK not set).0: Disables ...

DAC Output not zero on STM32F429I discovery (about 180mv). Can someone give an answer? and if I need to drive with the DAC an external circuit, How can I solve the issue?

STM32 Hang unewpectedly (NVIC suspected)

Hello,I've designed a board based on an STM32F091CBU.I needed CAN bus support, one SPI and one I2C and a timer interrupt.When I tested my program, it hanged during the initialization of the IMU (an LSM6DSM) due to HAL_delays I ordinary set between SP...

Code execution from SRAM of STM32H743 MCU.

Hi,1.Wanted to know does the execution time reduces(speed increases). If text segment is brought to SRAM from flash at start up and executed in STM32H743 MCU2.Wanted to know are there any optimization techniques to improve speed like using I cache ...

Why isn't HAL_Init() exiting and why am stuck at an infinite loop at HAL_TIM_PeriodElapsedCallback()?

Hi guys,My code is acting strange, when it seems to intermittently get stuck during the HAL_Init() function at the start of the code. The issue never throws an error ( but the debugger constantly pauses at HAL_TIM_PeriodElapsedCallback() despite ther...