STM32 MCUs Products

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STM32L471 ADC offset 0.1V?

The CPU is powered using 1.8V both on VDD as well as VDDA (4.7uH coil as well as 1n/100n/1u capacitors in power path).When I measure the Vbat pin (100n cap supporting) in the range 2V-3.6V using the ADC I always measure about 0.1V less than the volta...

Resolved! I am new to STM32L4R5ZI. I have tried to dump the blinking LED code in STM32L4R5ZI using Keil MDK Arm 5 then I am getting following error... Contents mismatch at: 08001000H (Flash=00H Required=31H) !

I have generated the code (LED PB7 GPIO_OUT) by using STM32Cube Mx for MDK ARM5. While loading the code , I am getting following error.Contents mismatch at: 08001000H (Flash=00H Required=31H) !I have resolve this issue by erasing the flash using ST-L...

DVENK by Associate
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Supply current in unprogrammed state

How can I calculate the supply current of the MCU (STM32L471) in unprogrammed state? We use it in an ultra-low power application and need to know the battery drain during production and storage.

Why stm32H743zi has longer access time to GPIO interface?

I have two nucleo-144 boards, stm32F767zi and stm32H743zi. Both cortex-M7, pin compatible, and pretty close in AHBx (GPIO) clock, 216 vs 200 MHz.Testing TFT LCD display library, that required fast 8-bits access to the LCD data bus, I discovered that ...

RTC ALARM A Stops working after Mid-Night

I'm using STM32L152RE with FreeRtos for our project. We use RTC HAL library to handle the Calendar alarms. I'm in a strange situation where the RTC_ALARM_A does not generate an interrupt after 12 midnight. The current system is setup to generate an...

String compression for UART on STM32F7

Hi, I'm working on a project in which i need to send strings through UARTMy throughput is limited because i'm working with Xbees, so i want to compress my ascii strings (that are long 1024 bytes and with simple structure because they are in csv forma...

MMand.9 by Associate
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Can STM32 read external FIFO through the FSMC interface?

I want to use FSMC to read external FIFO implemented in an FPGA. Since there is no mode of FSMC that can match FIFO interface exactly, so I want to use the modified synchronous multiplexed PSRAM mode. The plan is like thisA[25:16]: Ignored, don't ...

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RLee.7 by Associate
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FMPI2C on STM32F407

Is it possible to use Fast mode I2C on STM32F407 ? I looked everywhere for the I2CX pins GPIO but Can't find them at all.

Resolved! Micro controller

Hi All,Can anyone suggest a STM controller supporting following features.1) 1 I2C Port.2) 4 UART Ports.3) 20 Gpios4) 1 RGB LED PinThanks,Ashok

ab.7 by Associate II
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