STM32 MCUs Products

nrf function

Error during debugging

hi,i am executing c/c++ application code in gnu mcu eclipse targeted to STM32F4. i am trying to perform software debugging i am getting the following error during the debugging process. the error is as follows/////////////////////////Error in service...

Two ADC channel read while 7 channel are configured

HI,Im using stm32l4r5. i configured 7 channels of ADC1.And configured in regular conversion mode (7 ranks). Scan mode enable and continous disable. but when i debbug only two chanel transfer data to array and other element of array = 0 . any one help...

How to add modified device tree with PWM control backlight

My circuit board USES PE6 to control the backlight, but it cannot be adjusted. How to modify the device tree of TIM15_CH2.EV1 is not regulated.EV1:panel_backlight: panel-backlight { compatible = "gpio-backlight"; gpios = <&gpiod 13 GPIO_ACTIVE_LOW>...

STM32L072 and interrupt vector

Hi allI would like to know if STM32L072 can use interrupt for USART4 & 5.I'm using 1,2,4,5 serial ports .If not, is using STM32L151 would change something or not ?Thanks for help

SDMMC, is it necessary to send block length command before write

Hello, we are building a project on an STM32F7, and so far it's great. Our device includes an SDcard, and we are using the HAL layer code. There is a function HAL_SD_WriteBlocks_IT which has worked fine, but I take a closer look and I see that it sen...

Because I tried to make the MCU sleep mode. I therefore tried to configure the sys causing errors. I want to start again I tried erase the ship but it wasn't successful. I want to configure the MCU to be the factory default. What are the steps to do?

Muxed PSRAM compatible memory

Hello,I am using a STM32H745 in LQFP144 package and as far as I understand it supports only muxed PSRAM since the pins for non-muxed memory are missing in this package and the CubeMX software does not have the option to setup non-muxed PSRAM on this...

STM32 standby wake-up BUG?

STM32 standby mode, standby wake-up pin PA0 and RTC wake up, both can work normally. The problem encountered is: If the wake-up pin PA0 is kept high, when the PA0 high-level hold time exceeds the wake-up time set by the RTC after standby, the chip di...

Integraten Operation amplifier in STM32F3030

In datasheet is 6.3.22 Operational amplifier characteristicsILOAD Drive current max 500uA.Does this mean the amplifier cannot control the negative current?RLOAD Resistive load min 4kOhn? Why 4kjOhgm, for exmple curtent to 4kOhm for 2.5V is 625uA, thi...