STM32 MCUs Products
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Why SDIO Clock Signal is generating higher radiated emissions?
Hello,We are using STM32F765BI series MCU. We are using SD Card using the SDIO interface. It seems that when the SDIO module is Active (CLK signal is generated at 24MHz), higher emissions are observed in the spectrum. When we disable the SDIO module ...
ISO7816 smart card have ATR only 1 byte 0x3B (ST8024CDR + STM32G030K6TX) missing/not work
ST8024CDRI have problem for reset smart card after smart card return (ATR) can received 1 byte is 0x3BParameterOSC = 4MHzCLKDDIV = 4Card is type T0 and support Max speed 5MHz Code start resetHAL_GPIO_WritePin(RST_UC_GPIO_Port, RST_UC_Pin, GPIO_PIN_SE...
Problem with 1us clock signal generation from Timer in STM32G474 EV Board
Hi Everyone. My EV Board use 24 MHz HSE but I used PLL to get with 170 MHz, I also set this frequency for the clock of timer module. I could get 2us periodic signal normal from timer setting however I cannot get 1us periodic signal normally (you can...
Functional safety
Hello,I would like to receive the UL(E480533) condition of acceptability what is the failures in the internal watchdog? is external watchdog is needed ?Do you have risk assessment for STM32F ? can you share it?can you recommend a consulting company t...
STM32G473 will not work at 170MHz but works fine at 150MHz
I have a very odd problem. I am using the STM32G473 and have configured the clock to 170MHz. When the code runs it drops to default_handler every time after setting up the clock. Not unusual if there is no ISR or call back set up. However if i set th...
Higher priority timer will preempt lower priority external interrupt, but will not preempt a lower priority timer.
EDIT: Hello, everyone. My code issue seems to have resolved itself after much changing, but I never did find out what was happening. My real question was answered: There are no likely circumstances that a higher-priority interrupt should not pre-e...
I2C communication address issue
Hi, All. I have come across an odd situation in I2C communication between F405 and sensors1) F405 is master. address is 7 Bit2) with 3 slave I2C sensors , address, 22h,35h,78h3) There is no issue to read data from sensors of 22h and 35hbut when comm...
Resolved! Why have STM32H5 workshop materials not been emailed as promised?
I attended the online STM32H5 workshop on Tuesday last week. We were told that the slides and a code for a free STM32H5 Nucleo board would be emailed to us after the workshop. Almost a week later I have still not received either and email to the ad...
Resolved! Making a UART frame from ADC value WITH ASCII Control Character
Hello,My aim is to send (from my nucleo board_F103+FTDI) somes ADC value from DMA.Easy...But i would like a frame like that (Windows Software need it):<STX>ADC1;ADC2;ADC3<ETX><CR><LF>I'm able to send data, no more...uint16_t sensor_B =1234; char str[...
