STM32 MCUs Products

I am having issues in reading the part of CCS811 from STM32L072xx. It is coming 0x80 instead of 0x81, how do I resolve it?

We are currently working on the interfacing of sensor CCS811 with STM32L072, and we are having trouble reading the Part ID of it. On reading register 0x20 the part id we are getting on serial monitor is 0x80 (While it should be 0x81). While checking ...

exit Standby mode delay with iwdg and rtc.

MCU: STM32H750exit Standby mode delay with iwdg and rtc.I find when I enable iwdg it seems will delay 1 second when exit standby mode. After trace code, I find it is hang in HAL_RTC_Init(),the RTC_EnterInitMode() will check weather the hrtc->Instance...

ADC in Low power run mode

Hi,I have configured ADC like  ADC_ChannelConfTypeDef sConfig;  /**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)   */ hadc.Instance = ADC1; hadc.Init.OversamplingMode = DISABLE; hadc.Init.ClockP...

SDRAM Extended Mode Register Write

I am using an STM32F769NI with a MT48H16M32LFB5-6 SDRAM chip, everything works fine. we are looking to set the drive strength to 1/4, 1/2 and full to evaluate the effect on EMC testing. From what I read in the programming manual, it states to perform...

Why is Arduino / Nucleo F103RB Losing Code Space?

I have been using the Arduino 1.8.9 app for several months programming the Nucleo-F103RB development board with my application. I have several boards and some are self powered and others USB powered. Yesterday, on a self-powered board, I received a ...

How to properly configure the CAN2 RX Interrupt on STM32 ?

Hello,My RX0 Interrupt is not called and I don't understand why. If someone can help me, because I already tried lot of things.The problem is I never go in my "CAN2_RX0_IRQHandler()".I properly configured my CAN timings because the received frames ar...

I have problem to set up 8 data bit Serial Peripheral Interface: when I set data bit size 8, I have 8 proper data bits and 16 clocks in Transmit mode. How could it be fixed?

Is uint16_t and uint32_t interrupt safe in Cortex M architecture?

I am working on some embedded stuff and I had multiple interrupts possibly working on same data and so I was wondering if uint16_t and uint32_t data types are interrupt safe.If interrupt is working a uint16/32_t data and is halfway interrupted by ano...